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Can An 'OS For Electricity' Double the Efficiency of the Grid? (vox.com)

New submitter mesterha shares an "interesting article [from Vox] on how to optimize our use of electricity": Waste on the grid is the result of poor power quality, which can be ameliorated through digital control. Real-time measurement makes that possible. 3DFS technology, which the company conceives of as an "operating system for electricity," can not only track what's happening on the electricity sine wave from nanosecond to nanosecond, it can correct the sine wave from microsecond to microsecond, perfectly adapting it to the load it serves, eliminating waste." "They claim energy reduction of around 15% but anticipate their AI tuning can get eventually get 30%," writes Slashdot reader mesterha. "Seems too good to be true, but it has the support of publications like Popular Mechanics." [3DFS won one of Popular Mechanics' "breakthrough awards" in 2017.]

148 comments

  1. Has the support of Popular Mechanics... by Nutria · · Score: 3, Informative

    it's fun to read, but not terribly rigorous.

    --
    "I don't know, therefore Aliens" Wafflebox1
    1. Re:Has the support of Popular Mechanics... by CaptainDork · · Score: 1

      Just what I was thinking.

      Popular Mechanics is a content provider.

      --
      It little behooves the best of us to comment on the rest of us.
    2. Re: Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      Popular Mechanics is science fiction.

      The answer to the question is no. Next stoopid question.

    3. Re:Has the support of Popular Mechanics... by Crashmarik · · Score: 2

      Getting on the cover of popular science or popular mechanics is usually the kiss of death.

      Still waiting for the NUTCRACKER VTOL that they claimed would be all the rage

      https://i.pinimg.com/originals...

      or the Helicopter RV
      https://i.pinimg.com/736x/36/f...

    4. Re:Has the support of Popular Mechanics... by ShanghaiBill · · Score: 4, Insightful

      The root problem is mostly cheap/crappy industrial AC motors. Replace them with variable speed DC motors and the reactive load mostly goes away. The new motors will pay for themselves in a few years with lower energy bills.

    5. Re: Has the support of Popular Mechanics... by Bing+Tsher+E · · Score: 1

      True, but the Altair made the cover of Popular Electronics.

    6. Re:Has the support of Popular Mechanics... by uvajed_ekil · · Score: 1

      Popular Mechanics? Sweet, this will be a world changer in no time, just like the space planes we had 20 years ago, the robots that have been everywhere for decades, and the military-grade nanomaterials that have already changed every aspect of our everyday lives. It's a fun read sometimes, but PM is not exactly a hotbed for real science and accurate predictions of the immediate future.

      --
      This is a hacked account, for which the owner can not be held responsible.
    7. Re:Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      Love how he posts fake information about political affairs, on a post about a fake technology he posted himself. I vote BeauHD as worst "editor" on slashdot. When does that poll start?

    8. Re:Has the support of Popular Mechanics... by Falconhell · · Score: 1

      The VOX link is quite good, for a more in depth look at the tech.

    9. Re: Has the support of Popular Mechanics... by Crashmarik · · Score: 1

      Where is MITS today ?
      Roberts got out of the computer business and became an M.D.

    10. Re: Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      "BeauHd (5)" is a troll account, and not actually an editor.

    11. Re: Has the support of Popular Mechanics... by Mr+D+from+63 · · Score: 1

      Popular Mechanics is science fiction.

      The answer to the question is no. Next stoopid question.

      This article reminds of the sales pitches of high end 'audiophile cable' makers. Lots of tech talk but no actual basis. Throw in 'AI Tuning' for kicks.

    12. Re: Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      "BeauHd (5)" is a troll account, and not actually an editor.

      Well he certain is trolling us with crappy news submissions.

    13. Re:Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      You can remove more inefficiency and get rid of all waveform analysis and monitoring equipment by using direct current YBCO lines with liquid nitrogen; allow residential homes to tap the LN2 for cooling and you can also replace individual AC with (probably more efficient) centralized cryogenic plants as long as the distribution lines are (finally) buried and suitably insulated.

      We need to get past the Band-Aid > Permanent-Fix mentality

    14. Re:Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      No, it's not accurate, but it is a terrific source for science fiction stories. Especially off the slightly off-kilter sci-fi that almost reaches into steam-punk level weirdness.

    15. Re:Has the support of Popular Mechanics... by TechyImmigrant · · Score: 1

      That would make the overclockers happy. LN2 piped to their gaming rig.

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    16. Re:Has the support of Popular Mechanics... by Anonymous Coward · · Score: 1

      You might not even need the superconducting lines at all. Creating and distributing that liquid nitrogen has a high cost, so why not just use high voltage DC in normal wires? Many DC-DC converters are existing, well-understood technology, and HVDC is already in use for power distribution, and it doesn't look like they have liquid nitrogen pipes sheathing them.

    17. Re: Has the support of Popular Mechanics... by CaptainDork · · Score: 1

      Troll equality.

      --
      It little behooves the best of us to comment on the rest of us.
    18. Re:Has the support of Popular Mechanics... by Rick+Schumann · · Score: 1

      You know.. my initial internal reaction to reading what you wrote (half-life: about, say, 3 minutes) was to think to myself "That's a nutty idea, 3-phase industrial motors are a mature technology, very simple comparatively speaking, have a long lifespan, why should they change them for something more complicated?", but thereafter I thought to myself "..but while they are in fact a 'mature technology', that also implies they're a very old technology, and while elegantly simple in design, they were so because anything more complicated just didn't exist -- and big industry tends to be conservative about such things, so why should it change?"

      In fact we've got high-horsepower brushless DC motors, which, yes, require relatively complex (compared to a 3-phase AC motor) electronics, also capable of handling high currents (which is, I think, the major reason they weren't used before; power MOSFETs are relatively new compared to 3-phase AC motors), and it would have been prohibitively expensive and high maintenance compared to a simple motor. As a proof-of-concept, you could probably take the motor and controller straight out of an electric car and adapt it to an industrial application, and it'd do just fine, have an at least comparable lifespan, etc.

    19. Re: Has the support of Popular Mechanics... by Anonymous Coward · · Score: 0

      Stop making arguments against their plant to install additional spying equipment (aka AI tuning) at everyone's home!

    20. Re:Has the support of Popular Mechanics... by Darinbob · · Score: 1

      The problem is not new, and the solutions are not new either. Sounds like yet another entrepreneur/innovator doing what otehr people are already doing. This is some of the benefits of smart grid technology, being able to monitor and check for problems with electricity distribution (phases not aligned or unbalanced, voltage sagging, etc). And in the smart grid there are already several "operating sytems", a complete B.S. term that has no actual meaning outside of marketing.

    21. Re:Has the support of Popular Mechanics... by jtgd · · Score: 1

      Of course if there's a leak, everybody's dead.

      --
      J
    22. Re:Has the support of Popular Mechanics... by eric_harris_76 · · Score: 1

      Popular Science is even better. Remember how the Rolamite was going revolutionize a bunch of stuff, due to its low-friction operation? Or how the Rovac was going to make the need for refrigerant fluids go away, in air conditioners?

      Not so much, as it turns out.

      https://duckduckgo.com/?q=popular.science+rolamite

      https://duckduckgo.com/?q=popular.science+rovac

      --
      There's no time like the present. Well, the past used to be.
  2. 3Dfx Returns... by The+Fat+Bastard · · Score: 1, Redundant

    Drop in a couple of Voodoo 2 cards and run them on your electrical grid in SLI mode to get clean power!

    1. Re:3Dfx Returns... by DontBeAMoran · · Score: 1

      You mean Sine Load Intelligence?

      --
      #DeleteFacebook
    2. Re:3Dfx Returns... by Anonymous Coward · · Score: 0


      MODDOWN! ; creimer cheap karma whoring sock puppet post again!

      creimer's child bride retired military buddy suggested to him to "hide in plain sight" so creimer picked up "The Fat Bastard" as his new sock puppet user name!

    3. Re:3Dfx Returns... by Anonymous Coward · · Score: 0

      creimer left slashdot for youtube months ago but his channel only gets 4 views a day and 1 comment a month so this doesn't quite satisfy creimer's need for attention which is as big as his appetite.

      So, he keeps opening suck puppet accounts on Slashdot in order to get some kind of attention.

    4. Re:3Dfx Returns... by Anonymous Coward · · Score: 0

      +1 insightful

      We actually think that his need for attention is linked to his overweight problem.
      --
      Silvia Bunge
      Psychology Department
      University of California, Berkeley

    5. Re:3Dfx Returns... by Anonymous Coward · · Score: 0

      How does a bare account with no bio, no signature and no links bring attention to creimer?

    6. Re:3Dfx Returns... by Anonymous Coward · · Score: 0

      Chris, you fat tube of lard, reread the OP carefully. He never suggested that.

      I know that you suffer from several disorders and that it affects your reading/writing skills but try again, we never know...

    7. Re: 3Dfx Returns... by Bing+Tsher+E · · Score: 1

      Can I mine bitcoins on my Vodoo3 2000?

    8. Re:3Dfx Returns... by Anonymous Coward · · Score: 0

      You know he was just making a joke about 3dfx (early graphics card) vs 3DFS (technology in the article). The two sound very similar.

      Lighten up.

  3. Yes but... by Narcocide · · Score: 1

    They will just use it as an excuse to triple the cost. Did phone bills get cheaper? Did bandwidth get cheaper? Did rent get cheaper?

    No.

    1. Re: Yes but... by Anonymous Coward · · Score: 0

      Bandwidth continues to get much cheaper every year for over 20 years, unless you're a consumer.

    2. Re:Yes but... by Nutria · · Score: 1

      My landline was pretty cheap. Feature for feature, phone bills definitely got cheaper from 1980 to 2018.

      --
      "I don't know, therefore Aliens" Wafflebox1
    3. Re:Yes but... by pubwvj · · Score: 2

      Actually, yes, phone bills and bandwidth have gotten a LOT cheaper. Rent not so much but that is a finite physical world resource which is quite different than energy or information resources. Moore's Law doesn't apply to apartments, so far.

    4. Re: Yes but... by Anonymous Coward · · Score: 0

      Solid State Housing... the future!

    5. Re: Yes but... by Anonymous Coward · · Score: 0

      I'm not sure about that.
      Anything above 1Mbps would have been pretty expensive 1998.

      I don't think I would have been able to get a 100/100Mbps connection for $39/month back then.
      I think my school back then had a 10Mbps connection.

    6. Re: Yes but... by K.+S.+Kyosuke · · Score: 1

      Which of the American states is the Solid State?

      --
      Ezekiel 23:20
    7. Re:Yes but... by Anonymous Coward · · Score: 0

      Sigh

      My "phone" bill dropped all the way to zero.
      My cellular communications bill is far lower than my phone bill ever was
      My Cellular DATA bill seems high, but is still far lower than my cable DATA bill (which is very puzzling)

      The cost per byte of bandwidth compared to 2000 has dropped quite a bit, as long as you "buy in bulk". Data is cheaper on the 6 meg lines where I work than it is on my cable line at home.

      On average the cost of rent per square foot in my area (Minneapolis, Minnesota, USA) has remained stable but only at a cost of a drastic loss of open land. However, more amenities are included with newer buildings. Things like microwaves, air conditioning, garage parking and "free" wifi are all included in the bill causing the prices to climb.

      My point is that things change. You can't compare new apples to old apples because what you call an "apple" now didn't even exist a few years ago. You wouldn't want a model 2500 push button desk phone, a 1200 baud modem or a two-room apartment with surface parking, no washer/dryer/microwave/AC and just a shower, but that's what you are comparing your costs to.

      What we call the "power grid" right now will not exist in fifteen years but we will still call whatever replaces it the "power grid". It will cost more. It will be better.

  4. As with all headlines that are questions... by Anonymous Coward · · Score: 0

    Not it can't 30% max is nothing like double.

    F**n click bate.

  5. Grids are already 90-95% efficient ... by quenda · · Score: 2

    ... so I'm leaning towards a "no" answer.

    1. Re:Grids are already 90-95% efficient ... by mugurel · · Score: 1

      If you would be sure about the 90-95% efficiently then there would be no need to be "leaning towards" the infeasibility of doubling that efficiency, isn't it?

    2. Re:Grids are already 90-95% efficient ... by quenda · · Score: 1

      If you would be sure about the 90-95% efficiently then there would be no need to be "leaning towards" the infeasibility of doubling that efficiency, isn't it?

      What do you call it when a human can't pass the Turing test?

    3. Re:Grids are already 90-95% efficient ... by thegarbz · · Score: 4, Informative

      ... so I'm leaning towards a "no" answer.

      Not even close. Transmission lines are about 90-95% efficient.

      Grids on the other hand have on top of that: multiple stages of transformers, switch rooms, losses through reactive power, losses due to harmonics, slow reaction to load changes and shifts, not to mention major losses due to backfeeding from end users generation like solar through systems that were designed to be efficient feeding the other direction.

      The answer is still no, but that's because they're playing buzzword bingo rather than just calling it an intelligent control system. Not everything needs "an OS" or "AI".

    4. Re:Grids are already 90-95% efficient ... by Anonymous Coward · · Score: 0

      What do you call it when a human can't pass the Turing test?

      Mister President.

    5. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      not to mention major losses due to backfeeding from end users generation like solar through systems that were designed to be efficient feeding the other direction.
      That is nonsense.
      The grid does not know if you:
      a) switch of your AC, or
      b) feed in 2kW with your solar panel

      A) and b) look exactly the same.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    6. Re:Grids are already 90-95% efficient ... by thegarbz · · Score: 1

      The grid does not know if you:
      a) switch of your AC, or
      b) feed in 2kW with your solar panel

      A) and b) look exactly the same.

      I didn't say they don't look the same. I said there's efficiency problems. The grid most definitely does care if it's 500kVA transformer is powering 50 AC units, or if it is powering 5. There are big differences in electrical efficiency especially at the lower power when you start getting dominated by iron losses.

      But back to solar power. It may be a small efficiency problem for you if all your customers turn off loads, but it becomes a big problem if all of them backfeed 2kW into the system. Power transformers typically have been compensated to work efficiently in one direction only. That's not to say they are polar, but ... for all intents and purposes you should treat them as such. No manufacturer will say you can backfeed a transformer that hasn't been specifically designed for it. While it is however possible to do it on many of them it comes at the very real risk of overloading them. Then you have to consider if the switchgear has been designed not to detect the backfeed as a fault event and open the breakers, god knows that has happened plenty of times. But then there are proper one way limitations too such as on-load tap changers not being designed to step both up and down due to the assumption that the secondary windings are always under load. Back feed them and the OLTC hits zero because of lack of load on the secondaries and you slowly roast your primary windings.

      Just because in the super simple highschool model the grid looks like a giant resistor doesn't mean it actually is one.

    7. Re:Grids are already 90-95% efficient ... by Immerman · · Score: 1

      From a quick skim it sounds like when they say "double the efficiency" they actually mean "halve the losses". My first impulse is to blame the reporters for that confusion, but it's also possible marketing-weasels were involved.

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    8. Re:Grids are already 90-95% efficient ... by Darinbob · · Score: 1

      Depends on where you're looking. The nationwide transmission grid is pretty well managed. But the more local distribution and neighborhood grids aren't handled as well and the local utilities may not even know when there are problems. There are already several solutions out there to help with monitoring and tweaking, so there is nothing new or novel in the article other than using Slashdot as a marketing outlet.

    9. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      It may be a small efficiency problem for you if all your customers turn off loads, but it becomes a big problem if all of them backfeed 2kW into the system.
      No it is no problem: it is EXACT the same thing.

      Power transformers typically have been compensated to work efficiently in one direction only.
      Yes and no. Feeding in e.g. solar power is not supposed to go via a transformer in your block into a higher voltage level. If you want to feed solar power into the grid on a higher level, every installation has to transform to that level and be connected to it.

      Then you have to consider if the switchgear has been designed not to detect the backfeed
      There is no back feed ...

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    10. Re:Grids are already 90-95% efficient ... by thegarbz · · Score: 1

      No it is no problem: it is EXACT the same thing.

      No. Power flows the other way making it not an exact same thing.

      Feeding in e.g. solar power is not supposed to go via a transformer in your block into a higher voltage level

      Not being supposed to is not something in control of power installations at the MV level. A lot of these transformers have little more "control" around them than a small auto-recloser on one side. You may say it doesn't happen, I say I was part of a program that saw these things mass replaced all over Australia where 1/3rd of houses have solar panels on them, and this caused major problems. I also say if it's not such a problem why did ABB, Schenider, etc publish advice on not backfeeding transformers, and why did they suddenly bring to market new transformers for specifically this reason.

      I get it that the sun doesn't shine in Germany (though it has been a lovely week) and there are very few solar panels here, but this is a very real problem for places where customers are able to generate electricity en mass. A very real problem which is having very real money spent on resolving it.

      Transformers do get backfed in many places where solar is ubiquitous, and it causes a major problem for grid efficiency at best, and actually triggers power outages at worst.

    11. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      No. Power flows the other way making it not an exact same thing.
      The power does not flow the other way, it flows the same way.

      I get it that the sun doesn't shine in Germany (though it has been a lovely week) and there are very few solar panels here
      Germany has the biggest solar installations per capita of the world.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    12. Re:Grids are already 90-95% efficient ... by quenda · · Score: 1

      The power does not flow the other way, it flows the same way.

      That's not an argument, it is a contradiction. Try reading again. thegarbs was quite clear.
      The houses being fed by a particular pole-top transformer are collectively generating more electricity than they are consuming. Presumably in the middle of a workday when few people are home.

    13. Re:Grids are already 90-95% efficient ... by thegarbz · · Score: 1

      The power does not flow the other way, it flows the same way.

      Consuming 2kW vs generating 2kW is not power flowing the same way. Re-read what I said.

      Germany has the biggest solar installations per capita of the world.

      Indeed. Germany has the biggest installed solar capacity per capita in the world. What it also has is that installed capacity in a very different way than most other countries with large reliance on industrial generation, e.g. solar farms, and large scale commercial installations. In actual number of installed solar systems Germany is on par with the likes of Australia, a country with 1/5th of the number of households.

      Germany many generate the most solar, but you're far from the country with the most roof-top solar systems and end point generation systems. The very thing we are talking about. Heck when you concentrate production the way Germany does you specifically avoid the very issues we're talking about.

    14. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      The houses being fed by a particular pole-top transformer are collectively generating more electricity than they are consuming. Presumably in the middle of a workday when few people are home.
      He did not say that. And if that is the case, then the "block" has to be connected to the next higher distribution level: like it is done in every other country outside of the US.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    15. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      Consuming 2kW vs generating 2kW is not power flowing the same way. Re-read what I said.

      Of course it is.

      high voltage grid ---> low voltage grid that is the normal flow.
      If you connect a solar panel to the low voltage grid, it is no difference for the high voltage grid if you cancel a 2kW consumer in the low voltage grid or switch in an 2kW producer. The high voltage grid has to feed in 2kW less into the lower voltage grid: it is exact the same for the high voltage grid.

      And then again, if your low voltage grid is to small, so that a few solar panels already saturate it, then you connect to the higher voltage grid: like everyone else in the world is doing it.

      https://en.wikipedia.org/wiki/...
      https://en.wikipedia.org/wiki/...

      Germany has 7 times as much solar power installed then Australia.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    16. Re:Grids are already 90-95% efficient ... by thegarbz · · Score: 1

      If you connect a solar panel to the low voltage grid, it is no difference for the high voltage grid if you cancel a 2kW consumer in the low voltage grid or switch in an 2kW producer.

      How did you get this far into this thread and still not know what we are talking about. Go back to this comment and start reading again. https://slashdot.org/comments....

      Germany has 7 times as much solar power installed then Australia.

      Indeed it does. You know what else Germany has? A German guy who habitually doesn't read posts and keeps repeating the same irrelevant nonsense.

      Go back to the top of the thread, and try again. There's no sense trying to save this conversation so far down. It's quite clear you haven't understood the last 3 posts I made because you still think we're talking about something we're not.

      The link is above. If you want to continue the conversation, then reply to that comment and maybe you'll start to understand why it matters, and why despite your insitance to the contrary this is actually a problem.

    17. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      Power transformers typically have been compensated to work efficiently in one direction only.
      As the power only flows in one direction, that argument is irrelevant ...

      No idea where we got lost in the discussion, but that happens easy in text based conversations :D

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    18. Re:Grids are already 90-95% efficient ... by thegarbz · · Score: 1

      Okay let's look at the scenario again with an actual practical example: My street.

      25 houses. 16 with solar panels. Nighttime load consumption by all houses is between 3-9KW. Solar generation is zero. Let's assume the middle point (e.g. I have gas cookers and no airconditioning so my night time load is small compared to others with electric stoves and ovens). 6KW x 25 = 150KW being drawn from the pole top transformer at night.

      Average empty standby consumption of a house is around 300W (Australia is inefficient about this). Let's assume half the houses are empty (people at work) and the other half have basic daytime load (no lights, just basically a TV and an airconditioning). 12x300W + 13x3KW = 42.6KW being drawn from the grid.
      The average installed solar system is 6KW in Australia (in my street we actually have a guy with a 25KW system but ignore him, his house looks stupid with all the solar panels) 16*6KW = 96KW being generated.

      42.6KW - 96KW = -53.4KW That is 53KW backfed at peak during the day compare to being drawn at night. This isn't some wild made up scenario either. This is a perfectly normal situation when you have roof top solar installations in residential areas that aren't combined with commercial areas.

      I realise that this scenario is quite different to Germany. Here in Germany a lot of the solar power is larger and more concentrated. Also a lot of the suburbs aren't zoned stupidly due to the higher population density so your empty houses and apartments actually share transformers with shops and businesses leading to this situation not being as common. But in many places it is common and it is driving some actual investment in replacing end of line transformers in some countries. This problem is actually so bad that it drove our electricity providers to roll out smart meters (I built a house 3 year ago and it got a brand new analogue watt-hour meter). The problem there is that the electricity company can't tell the difference between generating and consuming loads and couldn't charge a different rate for each causing them to lose a lot of money when our meters were spinning backwards. Now I have a smart meter and don't get paid the same amount as I get charged for electricity.

      The people were generating more power than they were using. Transformers were being backfed.

    19. Re:Grids are already 90-95% efficient ... by angel'o'sphere · · Score: 1

      The people were generating more power than they were using. Transformers were being backfed.

      That should not happen. And would not happen in Germany.
      You are not allowed to feed into the grid, aka set up a new installation and connect it to the grid, when there are already "to many" installations in a "block".
      Then again, your original comment said: "a transformer is inefficient" if it feeds into an upper voltage layer. It is not. It works both ways with the same efficiency ... the only loss in both kinds is heat due to resistance, which is the same, regardless in which direction the current is flowing.

      Anyway, no idea how Australian authorities are handling this, if they accept that transformers feed back into high er voltage grids, then I would assume it is no problem for them?

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  6. 3-Phase by pubwvj · · Score: 4, Interesting

    Actually, this sort of thing does have potential although non-electrical-engineers may not realize why. I have single phase (sort of almost 2Ã) at my farm. I installed a 3Ã digital phase converter (Phase Perfect for those who are interested) which uses very little power itself but generates a third phase and puts the other two in proper alignment so I can now run large motors (grinder, bandsaw in my butcher shop) efficiently. This makes the motors run smoother, cooler and last longer.

    1. Re:3-Phase by Anonymous Coward · · Score: 0

      So, to summarize, we aren't making the grid more efficient, just the devices attached to it. This I can believe, the other, not so much. The only way the grid might get better is to have higher transmission voltage to reduce I-squared-R loses.

    2. Re:3-Phase by Known+Nutter · · Score: 1

      What is "sort of almost 2 phase"?

      --
      Beware of the Leopard.
    3. Re:3-Phase by Anonymous Coward · · Score: 0

      he has no idea what he's talking about and is trying to justify pissing away thousands he didn't need to spend?

    4. Re: 3-Phase by Anonymous Coward · · Score: 0

      Nope. Harmonics, which TFA was complaining about, still have Linux loses even though it's all reactive power being transferred. Par problems can be fixed with capacitors, and they're on platforms on poles all over the place, but harmonics are harder to fix and are getting worse with the proliferation of dc motor controllers.

    5. Re:3-Phase by Anonymous Coward · · Score: 0

      Is there some common/generic reason, why 3-phase is not installed in homes by default in the US?
      In Finland it comes to every house, as it is needed for electric stoves and sauna heaters, for example. Usually there is also the outlet outside for large machinery, but it is seldom needed by the typical family.

    6. Re:3-Phase by dgatwood · · Score: 2

      AFAIK, part of it is cost, and part of it is load balancing.

      Cost-wise, an entire neighborhood gets only one or two phases, which reduces the number of wires running through the entire neighborhood from four to two or three. Halving the number of wires represents a decent savings. And also, the transformers are much cheaper, because the building transformers only have to provide one phase at 240VAC instead of three.

      As for load-balancing, most houses really only need one phase, and would end up unevenly using the various phases if they had access to them. By giving houses only a single phase, you can keep the usage roughly balanced (over a sufficiently large area) by putting one-third of the homes on each phase. Similarly, most businesses and apartment complexes really can get by with two phases, so they do the same thing there. I'm not sure how much this matters in the grand scheme of things, but at least it gives the illusion of control.

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    7. Re:3-Phase by Anonymous Coward · · Score: 1

      As for load-balancing, most houses really only need one phase, and would end up unevenly using the various phases if they had access to them. By giving houses only a single phase, you can keep the usage roughly balanced (over a sufficiently large area) by putting one-third of the homes on each phase.

      This is a non-issue. You can rotate the pairs on a household to household basis if you want to. On top of that power appliances will can use the 3-phase and create an even load directly, thereby reducing the variation.

      I would say it is the cable cost that is the main reason.
      Maybe they also don't trust people to not do stupid shit if they have different phases available in different rooms.

    8. Re:3-Phase by Anonymous Coward · · Score: 0

      Wait a second. You have grinders, bandsaws, etc that have 3 phase motors?

      If you don't, you are not doing ANYTHING to make your devices more efficient. And the power company supplies 3 phase power to your neighborhood and they load balance the phases by spreading them out to multiple homes so on average each phase has the same power draw.

    9. Re:3-Phase by TechyImmigrant · · Score: 1

      >Maybe they also don't trust people to not do stupid shit if they have different phases available in different rooms.

      I saw that in a lab once. Different phases to different benches and someone ran and extension cable from one bench to the other. Sparks flew.

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    10. Re:3-Phase by dgatwood · · Score: 1

      You can do that with dual 110VAC connections, too.

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    11. Re:3-Phase by crow · · Score: 1

      Most houses in the US need two phases, as that's how they get the 240v circuits. We need 240v for the air conditioners, hot tub, EV chargers, hot water heater, oven, and clothes dryer. If you think you only need single phase, look at your circuit breaker panel, and find any double breakers--those are the 240v breakers that span both phases.

      Sure, they could supply single-phase 240v power, but that would be a major infrastructure change.

    12. Re:3-Phase by Immerman · · Score: 1

      Not that I'm ever one to think cost isn't a primary motivator in such decisions, but

      >Maybe they also don't trust people to not do stupid shit if they have different phases available in different rooms.

      Seems like a smart call - the one thing you can absolutely depend on from any human is that we will inevitably do stupid things. I'd be willing to bet that was true even before technology advanced to the point that most people can't hope to understand most of it.

      Or maybe they (also) don't trust them to make any attempt to balance loading between the phases - if you're installing a new outlet, etc. you're far more likely to pull power from the nearest junction box than run new lines from the breaker to balance loads. Besides, even if the phases were load-balanced initially, as soon as someone new moves in the physical distribution of power consumption will likely change and cause load imbalances.

      All in all, probably better to let the professionals with skin in the game and a whole-system perspective worry about load balancing, though there's something to be said for it if you can trust people to get three-phase power to their house, and use only their single designated "primary phase" for all wiring, while using three-phase for major appliance outlets that are expected to internally balance their draw.

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    13. Re:3-Phase by TechyImmigrant · · Score: 1

      This was in the UK. But yet. Same principle. It was a 240V standard outlet. A lead was pulled from another bench to power an oscilloscope. So the probe got 240-480V across it and the front end and probe was destroyed (this was a low voltage probe).
       

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    14. Re:3-Phase by pubwvj · · Score: 1

      I suspect from what you wrote that you did not understand what I wrote.

      I have grinders, bandsaws, etc with three-phase (3Ã) motors.

      The power coming from my utility is single phase (240@180Â almost two-phase as I said).

      I have a digital phase converter that takes the two legs of the single phase and outputs 3Ã at 120Â as needed for the big motors.

      The power company does not supply 3Ã to my neighbors either. The nearest native 3Ã is 1.5 miles and $80,000 away from me - not worth installing. I live literally at the end of the power line, or rather 840' beyond it. I know all about this since I spent a lot of effort looking into it so you can take my word on this rather than guessing.

    15. Re:3-Phase by pubwvj · · Score: 1

      I'm aware of load balancing issues. When I built my farm and USDA butcher shop I very carefully did the load balancing. I did all the electric, plumbing, concrete, design, engineering, permitting, etc so I'm familiar with these issues.

      There is no "neighborhood" 3Ã. Everything is 240V180Â here (phase and a half or what ever you would like to call it to poke fun). To get native 3Ã would have been $80K and 1.5 miles of run just for me. Not worth it.

      The 3Ã digital converter does a perfect job, load balances and only cost $5,500. This is not to be confused with rotary phase converters which consume and waste a lot of power.

    16. Re:3-Phase by pubwvj · · Score: 1

      Really? A loop rather than a tree structure? Running an extension doesn't mean a loop was created so I'm rather curious as to the wiring setup of the equipment.

    17. Re:3-Phase by TechyImmigrant · · Score: 1

      The scope was floating at a very different voltage relative to the thing being probed.

      So one bench with a board and test equipment probing it.
      One of the test equipment boxes was a scope on the same bench, which has run out of plugs, with an extension cable to another bench nearby.

      The smoke came out of the scope.

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
  7. PFC by Anonymous Coward · · Score: 0

    Power Factor Correction. They already do this.

    1. Re:PFC by HornWumpus · · Score: 1

      Your local utility will love it when you help. Everybody loves helpers, especially real Engineers. That's how you know they're real, friendly to volunteer helpers that jump right in and start (helping/trying to undo the mess they're own dimmers make). Especially when power goes out and the local helper system gives out one last dying spurt of electricity onto the dead grid, the linemen in particular love helpers.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    2. Re:PFC by thsths · · Score: 1

      PFC means that devices do not generate any harmonics, but the article is talking about damping harmonics (consuming them). That is another step, and currently that is usually not allowed by the grid code.

      It is a very reasonably approach, but it will at best provide a few percent of efficiency - probably just a faction.

  8. Popular Mechanics by Anonymous Coward · · Score: 0

    I thought I am cool for getting multiple publications in Nature and Science.

    Still havenâ(TM)t cracked Popular Mechanics â" well not directly anyway. :(

  9. Mod parent up by Anonymous Coward · · Score: 0

    Most informative thing I've read all day. I must say.

  10. Reduce waste %, not power % by joe_frisch · · Score: 1

    I could see a 15-30% reduction in the amount of wasted power, but the overall power waste is probably ~10% so reducing the overall waste by 30% would be rather impressive.

    Its all about cost. Thicker wires will also reduce losses, (as will coaxial cables etc. How does the cost of this compare to the cost of other methods of waste reduction?

    1. Re:Reduce waste %, not power % by Anonymous Coward · · Score: 0

      Thicker wires will also reduce losses,

      The tech isn't so much about improving the grid itself, but making the end points better. Their first deliverable is for data centers - they plug it into the main feed and it starts conditioning the current on a micro-second basis to more accurately match load fluctuations. According to the article that makes all of the equipment in the data center work more efficiently which means less heat and less wear-and-tear on components. They had a set of pretty charts from a data center power controller - they compared phase and harmonic distortion with and without this conditioner and it looks a lot better with conditioning. But we are relying on company itself to tell us that those factors translate into improved efficiency.

      They are also talking about putting the whole process on a chip that be included in any switching power supply so each individual device would be responsible for managing its own power quality.

    2. Re:Reduce waste %, not power % by b0bby · · Score: 1

      In my server closet I am using "always-on" UPSes, so am I essentially doing this in that room?

    3. Re:Reduce waste %, not power % by TechyImmigrant · · Score: 1

      >I could see a 15-30% reduction in the amount of wasted power, but the overall power waste is probably ~10% so reducing the overall waste by 30% would be rather impressive.

      Not really reducing 10% waste by 30% would drop it to 7% waste.

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    4. Re:Reduce waste %, not power % by Immerman · · Score: 1

      3% energy savings, times 3.8 billion kWh of electricity used in the US last year, is still a 114 million kWh/year reduction - well worth it *if* it can be done cheaply enough.

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
  11. Re:Not good enough by Anonymous Coward · · Score: 0

    Turn off your phone's fucking stupid smart quotes shit you asshole!

  12. How to do this by AHuxley · · Score: 2, Insightful

    Got grid connected solar that will only turn off when the grid is down? Let the power company turn solar on/off at any time with their own network command.
    That gives the grid control of all power that pushed back into their grid.
    Got AC? Let the power company turn the AC on/off depending on weather and what they want to do with their grid.
    Make everyone connected to the grid pay extra for a new huge new grid battery.
    The new big battery will allow the grid to respond to slight changes in demands to the grid.
    By having control of your AC and grid connected solar the grid can make more profit.
    Suggest every new dwelling gets solar with a network on/off command connection to ensure the grid can control all new solar.
    Suggest a battery pack for homes thats also grid controlled. So the grid can charge and access battery power as needed per dwelling.

    Will this result in a better use of the grid?
    Exisiting power generation can last longer without having to build more generation.
    Thats an efficiency in the ability to generate profit every year.
    The people living in a dwelling will have to be without their AC for hours for that to glance out.
    All your AC are belong to the power company.
    The power company will decide when on a 100 deg day your "networked" AC will be turned on and off on their grid.
    No AC for you.

    --
    Domestic spying is now "Benign Information Gathering"
    1. Re:How to do this by Anonymous Coward · · Score: 0

      None of which applied in sensible countries that actually regulate the power companies.
      Some or all of the the same techniques can be used voluntarily to great effect.
      As usual, you make a big strawman to support your dribblingly idiotic post.

    2. Re:How to do this by Falconhell · · Score: 1

      Or, you could RTFA and see an excellent idea well executed, rather than an off topic rant.

    3. Re:How to do this by Wimmie · · Score: 1

      Well, I did.

      The line that makes the most sense in the article:

      "By now, many BS detectors will be ringing at full volume. I get it. This sounds like magic beans."

      I see lot's of random claims (saving lives, detecting hacked systems and whatever).
      What they do it high speed sampling of the current and voltage and compute 26 parameters
      (why 26, something I must have missed when I got a degree in electrical engineering).

      OK, you can characterize whats happening and try to correct some stuff.

      40 years ago we kept the grid clean by simply putting a synchonous motor and generator on a single shaft
      en could play around with thyristors, igbts and what not without generating a mess on the grid. The utility company
      was not so happy with the students experiments and this was required to prevent us from messing up the grid.

    4. Re:How to do this by Anonymous Coward · · Score: 0

      That would be a bad way to do it - remote off/on control.

      The good way to do it would be to have proportional and elastic back-pressure, which allows users to make their own plans of graceful adaptation to fast changing conditions.

      My favourite method is real time energy market - consumer and the meter get the current (hourly, or minutely) price information, preferably in advance, and then consumer acts according to it, either manually operating appliances, or automatically through preprogrammed plan in smart programmable appliances. Rich people would probably afford luxury of keeping their appliances running at higher costs, but more cost-sensitive households should make prompt adjustments or risk getting heavy bills.

    5. Re:How to do this by Anonymous Coward · · Score: 0

      Well no .... during heat spikes the power company would tell your AC unit to run 5 degrees warmer than your setting.

      Frankly, the advent of Alexa devices and networked devices should allow users to manage this on their own. Just add an Alexa device outside that monitors exterior temperature and let Alexa define rules that govern AC settings in your home. Actually, that would be pretty damned awesome if Alexa supported "rules" for compatible devices. If device A value B greats than C, adjust D on Device E to F+5.

    6. Re:How to do this by swb · · Score: 1

      We've had the power company AC controller for years and I have never noticed a loss of cooling in the house, even during the day.

      I think they're really easy to bypass from what I can tell, and I don't think the power company has any clue.

    7. Re:How to do this by Falconhell · · Score: 1

      So, the actual data Center test result is just an inconvenient truth eh?
      It may shock you to learn technology has advanced a bit in 40 years

    8. Re:How to do this by AHuxley · · Score: 1

      AC re " but more cost-sensitive households should make prompt adjustments or risk getting heavy bills."
      With all this "free" smart solar, "free" grid connected wind farms, a smart battery for the dwelling and a big battery for the grid... and an OS to stop/start the AC and an app and a GU with a cost chart...
      Why the risk and talk of getting heavy bills? Is solar and wind energy moved around the grid not going to be less expensive than coal and hydro? Than nuclear or spinning up gas?
      Why would using a new OS on the grid to "control" everything still run the risk of consumers getting heavy bills AC?

      --
      Domestic spying is now "Benign Information Gathering"
    9. Re:How to do this by PPH · · Score: 1

      5 degrees warmer than your setting

      Is that Fahrenheit or Celsius?

      At any rate, my response would just be to turn down the AC setpoint 5 degrees (units TBD).

      --
      Have gnu, will travel.
  13. In one breath... by Anonymous Coward · · Score: 0

    Trump is an imbecile AND a genius.

    Go Clinton in 2032!

    1. Re:In one breath... by Anonymous Coward · · Score: 0

      Trump is JR Bob Dobbs!

    2. Re:In one breath... by Anonymous Coward · · Score: 0

      You shut your filthy mouth, heathen!

    3. Re:In one breath... by Anonymous Coward · · Score: 0

      The entire inner core of the church has disappeared. On a mission for Trump. You can't find a 33rd level subgenius, anywhere.

      Trump is Dobbs. He just gave up the pipe, in public. Frop extract, under his lip. Projected mind control, so you can't see it, until someone points it out, now you won't be able to stop. You can't even deny it.

      Soon the core of the church will take up their cabinet positions. That's when the party really starts.

      The solstice, 21st. Party like you've life depends on it. Can't tell you why.

      They just called my flight to Malaysia.

  14. Opposite phase by Okian+Warrior · · Score: 4, Informative

    He's referring to "opposite phase", which is common in the US. You get two 120-volt phases that are 180 degrees apart.

    You can go across the two phases to get 240 volts for high-power appliances such as stove and clothes dryer, but that's all you can do without special equipment. Three phase requires three sources 120 degrees apart, phase-to-phase.

    1. Re:Opposite phase by CrimsonAvenger · · Score: 1

      Three phase requires three sources 120 degrees apart, phase-to-phase.

      The Navy uses three phase electricity aboard ship. Just requires a generator designed to produce it. Does NOT require three generators....

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
    2. Re:Opposite phase by Anonymous Coward · · Score: 0

      Umm, US homes get 3 phase (Y not delta) power to homes. Any phase to ground is 120 volt while source to source is 240v. The reason your stove has four pluigs is that one is the ground for safety. The other three are ground and two of the phased sources. So the stove runs on 240v for heating elements but control boards are 120 volt.

      There is no such thing as 2 phase power in the US electric grid or anywhere I know of. The beauty of 3 phase is how the loads can be easily balanced.

    3. Re:Opposite phase by Anonymous Coward · · Score: 0

      I should clarify. The road has 3 phase. The typical US home gets two of those phases supplied and the voltage across two phases is 240v. Either phase to ground is 120v.

      So your home does have two phases, but they are 120 degrees apart, not 180 degrees..

    4. Re:Opposite phase by Mr+D+from+63 · · Score: 1

      Three phase requires three sources 120 degrees apart, phase-to-phase.

      The Navy uses three phase electricity aboard ship. Just requires a generator designed to produce it. Does NOT require three generators....

      He didn't mean three generators, probably just poorly worded. A three phase generator could technically be described as three 120 out of phase generators in one. The point was its not so simple to get to three phase power from a single phase source.

    5. Re:Opposite phase by Anonymous Coward · · Score: 0

      Umm, US homes get 3 phase (Y not delta) power to homes. Any phase to ground is 120 volt while source to source is 240v. The reason your stove has four pluigs is that one is the ground for safety. The other three are ground and two of the phased sources. So the stove runs on 240v for heating elements but control boards are 120 volt.

      Uh not quite. You have four pins on that plug because it's really a split-phase receptacle, it has two hots (the phases), one neutral (required for the 120v circuit that is only running off of one of those phases), and then the ground. A true 240V plug only has three pins, the two hots and the ground as a neutral is not required because of the two phases. You don't see those often as it means that the appliance has to have a convertor built in to supply the 120V components, the only place where I see true 240v is on my well pump (no neutral there).

    6. Re:Opposite phase by jabuzz · · Score: 1

      The easiest method is to run a single phase electric motor that is hooked up to a three phase generator. Though a quick check on eBay shows that solid state ones are readily available.

    7. Re:Opposite phase by Mr+D+from+63 · · Score: 1

      Sure, running a single phase motor off a three phase gen is super easy, just hook it up across one phase or line to line. It won't be a balanced load, but it will work. It is powering a three phase motor from a single phase gen that requires a bit more complexity.

    8. Re:Opposite phase by Immerman · · Score: 2

      You misread, what they suggested was one of the easier ways to turn 1 phase power into 3-phase power:
      1-phase power -> 1 phase motor -> 3 phase generator -> 3 phase power

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    9. Re:Opposite phase by Mr+D+from+63 · · Score: 1

      You misread, what they suggested was one of the easier ways to turn 1 phase power into 3-phase power: 1-phase power -> 1 phase motor -> 3 phase generator -> 3 phase power

      Yes, I did mis-read. Thanks for clarifying.

    10. Re:Opposite phase by pubwvj · · Score: 1

      Chicago.

    11. Re:Opposite phase by pubwvj · · Score: 1

      Check again...

    12. Re:Opposite phase by Anonymous Coward · · Score: 0

      He's referring to "opposite phase", which is common in the US. You get two 120-volt phases that are 180 degrees apart.

      You can go across the two phases to get 240 volts for high-power appliances such as stove and clothes dryer, but that's all you can do without special equipment. Three phase requires three sources 120 degrees apart, phase-to-phase.

      Fuck that weak sauce. I'm doing FIVE phases.

  15. Been there, done that. by Anonymous Coward · · Score: 0

    Built on, and contributed to, open hardware also.

    www.se-instruments.com

  16. Yes, cost dropped by over 90% by raymorris · · Score: 5, Insightful

    Ten years ago we charged $2.50/GB and we were cheap. My old business partner still has the page up:
    http://xcite.net/hosting/

    Current. Pricing is about 8 cents / GB.

    When I was a kid long distance calls were about $1/minute. That was the "fair, minimal profit" price set by the government. Then long distance rates were deregulated and Sprint dropped their price to 10 cents per minute - a 90% reduction in price right away. Current pricing is about a penny per minute, unless you pay $30 for unlimited minutes.

    Whoever you've been listening to, whoever has been giving you ideas about how the economy works, has clearly been lying to you, telling you the exact opposite of the truth. Might be time to get some new sources of information.

    1. Re:Yes, cost dropped by over 90% by Narcocide · · Score: 1

      Yea but look at your per month average expenditure on your phone bill now vs. then.

    2. Re:Yes, cost dropped by over 90% by Anonymous Coward · · Score: 1

      Whoever you've been listening to, whoever has been giving you ideas about how the economy works, has clearly been lying to you, telling you the exact opposite of the truth. Might be time to get some new sources of information.

      Economy only works for the customer if there is competition. Is there any competition over the power grid?

    3. Re:Yes, cost dropped by over 90% by green1 · · Score: 1

      Our government claims our power grid has "competition". Of course that doesn't mean multiple sets of wires exist that you can switch between. It just means that they added a layer of bureaucracy on top of it, so now you pay 2 companies instead of 1. You pay the "wires service provider" AND the "electricity retailer". Surprisingly bills did not go down when they added "competition" in this way....

    4. Re:Yes, cost dropped by over 90% by Anonymous Coward · · Score: 0

      How do you pronounce "yea"? Does it rhyme with "pea"?

  17. Re: Not good enough by backslashdot · · Score: 1

    Iâ(TM)m tryinâ(TM) to. Itâ(TM)s hard to find. I couldnâ(TM)t locate it. I did find a button but it doesnâ(TM)t work. Whereâ(TM)s the switch? I called my friend and asked her, sheâ(TM)s going to get back to me. It might take her a while because when i asked her âoehowâ(TM)s it going?â she said sheâ(TM)s upset about her dad. Apparently heâ(TM)s going to jail. So anyway, I guess I tried, but I canâ(TM)t do it. Maybe it shouldnâ(TM)t be messed with, so letâ(TM)s just deal with it. Iâ(TM)ll just ask how youâ(TM)re using it.

  18. Discussion over at eevblog.com by Circlotron · · Score: 4, Informative

    Snake oil as far as everyone there is concerned. https://www.eevblog.com/forum/...

    1. Re:Discussion over at eevblog.com by dinfinity · · Score: 1

      Man, what a terrible thread that is.

      I get trying to be skeptic and wary of scams, but geez, they could try to keep an open mind instead of kneejerking into "can't be done"-mode.

  19. Only 55% reduction since it's now mobile, internet by raymorris · · Score: 1

    My current phone bill is $35/month. That's an all-inclusive price, I don't pay $1-$2 per minute for long distance like I did in 1980. Don't pay extra for call waiting, caller ID, etc. Of course that also includes internet; I'm posting this on my phone.

    That's less than half of the *minimum* you could pay in 1980, if you didn't make any long distance calls. Calls from one side of Dallas to other were long distance. The average cost for basic phone service, without any long distance, caller ID, call waiting, etc was $64 in constant dollars ($19.64 in 1980 dollars).

    If you had basic features like call waiting, call forwarding, and called ID, the cost would be about $77. No long distance, though - dad will be so SO pissed if you make a long distance call.

  20. Pfft, look it up by Maury+Markowitz · · Score: 1

    > Waste on the grid is the result of poor power quality

    Total average losses on the US grid as a whole is about 7%.

    This isn't a problem that needs fixing. Sure, getting that down to 5% would be great, but first we really need EVs.

  21. For gawd sake's... by Anonymous Coward · · Score: 0

    ...make this OS for the grid air-gapped from the Internet has never use Windows! Have the NSA offer their secret secure version of Linux and maintain it.

  22. What is 'electricity'? by nsaspook · · Score: 1

    I don't know if it's possible to use more buzz words in a article. What exactly do you mean when you say 'electricity' in a supposedly scientific explanation of a process? We don't generate electricity, we use the existing electricity in matter to transform and/or transport electrical energy. The KE of 'current electricity' (usually electrons) is a loss factor in the transmission of electrical field energy but the VOX article mixes the two into a unrecognizable mess if you are looking for technical details.

    --
    In GOD we trust, all others we monitor.
  23. Sounds like ... by PPH · · Score: 1

    ... power factor and harmonic correction. Yes, this will help. But it is already a thing, particularly in switch-mode power supplies. Chip sets already exist that implement such correction. No "OS for electricity" required. 3DFS may have a better algorithm. But I doubt that there's more than a fraction of a percent to be gained in power supply efficiency. But this isn't a novel idea (unless one is making a pitch for a patent). Just incremental improvement in established practice.

    Some places that finer control of electrical load equipment might pay off are in things like variable speed motor control. Instead of spinning a pump or fan at a fixed speed, vary it to match system demand. This is becoming more economical as the power electronics needed are dropping in price. But it is already prior art.

    --
    Have gnu, will travel.
  24. Wrong Conversion Losses by jozer · · Score: 1

    Here is an E-mail I just sent to the author:

    I just read your article on 3DFS technology. I have been in power generation for 17 years, and I think I can explain the problem you encountered with the professor of electrical engineering who hung up on you. My bullshit detector was going off pretty hard due to a single claim in the article, which you repeated a few times. After reading the full article, I think the technology is entirely possible, and even plausible. The problem is that the conversion losses in the DOE graph are not the same conversion losses that 3DFS is referring to. The DOE conversion losses are looking at the thermal efficiency of the generation being turned in to electricity. For example, a single unit at my nuclear plant operates at about 1675 MW thermal output, but the electric generator only puts out about 570 MW of electricity, of which about another 30 MW is used by the station to power pumps, fans, and other loads. While having a grid full of 3DFS equipment hooked up might increase that efficiency, it would be miniscule. 3DFS’ technology really effects everything from “net generation of electricity 13.70” to the right. The conversion losses 3DFS would be improving is almost entirely on the load side. I cannot rightly say that it will make an average wall-wart AC to DC converter go from 30% efficient to 95% efficient without a much more in-depth understanding, but there is much more room for those kind of gains within the laws of physics than the conversion losses in the DOE graph. Those are limited by carnot efficiency, which applies to all heat engines, like the rankine cycle or brayton cycle. If you correct that deficiency, I suspect that you will get much less negative feedback on the article. I hope this helps!

    1. Re:Wrong Conversion Losses by ChrisDoerfler · · Score: 1

      It is important to highlight the relationship between the turbine and the generator here. Without 3DFS installed, the generator is not producing synchronized electricity and thus there are necessarily energy losses at this moment. The important questions to ask here are 1. Where do these losses go? and 2. How are they accounted for? Our contention is that they are being absorbed and distributed throughout the generator and turbine, increasing the temperature and wasted energy. Today, they are lumped in to conversion losses. With 3DFS Technology installed, the electricity is generated in sync thereby evacuating the electrical energy as quickly as possible from the generator and do not cause the losses to negatively affect the generator and turbine. Overall what are considered conversion losses today will be streamlined to not include these electrical energy losses at generation.

    2. Re:Wrong Conversion Losses by jozer · · Score: 1

      The author was kind enough to respond to me, and I have responded in turn. Your reply ( I assume you are from 3DFS ) doesn't materially change my response.
      Here is the exchange:

      That is the claim that is drawing the most fire, but it is an actual claim 3DFS makes, not a mistake, so it's worth understanding.
      They are, believe it or not, aware that there are carnot-related losses in electricity generation. Their claim is that the 66% losses DOE claims under that banner are actually a combination of carnot and electricity losses -- that the lost quads DOE puts under there are actually spread out over the grid. They know they cannot eliminate carnot losses. But (they say) they can eliminate 98% of electrical losses. And they say that when all electrical losses are prevented, the actual carnot losses will be revealed as considerably smaller than DOE estimates.

      Again: the claim is that carnot losses are exaggerated in the sankey diagram, not that they don't exist, not that they can be eliminated.
      That claim may or may not hold up, but it's not the ridiculous claim that so many people on Twitter are busy rebutting.

      Hope that helps clarify!

      --- And my reply below---

      Thanks for the reply, but I'm not buying it (and I know you're just the messenger, so don't take this personally).

      While the measuring devices are "analog" in this system, the DOE estimates for conversion losses can literally be taken from the data I indicated earlier (1675 MWt to 570MWe for my plant, or roughly 34% efficient). It's incredibly easy data to gather, and it would be really hard to exaggerate. The only place where there are electrical losses in this system (between the mechanical input from the turbine and the measuring devices on the generator output) is the electrical generator and some buswork. This measurement is before it goes out on the grid, so there is literally no way that this number can be "spread out over the grid". I can also assure you that most of the electrical losses in the generator come from the fact that it is pushing out 20,000 amps. If those I^2*R losses don't account for more than 95% of the electrical losses I would be incredulous - and there is nothing a system like theirs could do to significantly reduce those losses - certainly not by 98%. I would be really impressed if they could pull off 5%... It's not like they're turning the copper in the generator into a superconductor.

      Taken from another direction, my plant has a maximum theoretical Carnot Efficiency of about 46% in the summer. Laws of thermodynamics prevent anything higher than that. That 12% difference between theoretical maximum and actual has to account for heated water being discharged constantly to maintain chemistry parameters, friction losses in piping, windage and end-tip losses in the turbine, bearing losses for the turbine and generator, imperfect heat transfer between heat exchangers, thermal losses from steam and feedwater piping, steam leaks, throttling losses, and other ideal vs real turbine losses (made much more significant due to a lack of superheating for the high pressure turbines). That is all in addition to any electrical losses.

      There isn't much left to get back from the generator, and no amount of phase balancing and harmonics corrections can fix anything before the generator, especially after you consider the hundreds of tons of rotating mass that would buffer those systems from any harmonics. 3DFS might be doing something really cool, but it sure as heck isn't reducing the conversion losses (as a percentage) on the DOE graph. Then again, my entire argument assumes that the DOE graph is what it says it is. Maybe the DOE is just incompetent at gathering and compiling data. I'll hold out hope that this is merely miscommunication, but what you are describing sounds more like marketing than actual technical data.

      Thanks for listening to my rant. :)

    3. Re:Wrong Conversion Losses by ChrisDoerfler · · Score: 1

      It is established science that the power factor, harmonics and phase balancing are the worst at generation. Electricity loss occurs in the moment, so whenever one of the three above is not perfect, loss immediately occurs. So that means that during generation, there is constant, and never ending loss, like having a hole in a hose, the more used, the more lost. This is a massive quantity of energy. Please enlighten me as to where these losses go today?

    4. Re:Wrong Conversion Losses by jozer · · Score: 1

      It is established science that the power factor, harmonics and phase balancing are the worst at generation.

      This is false. Power balancing and power factor are both vector sums, and since different customers will have different phase imbalances and power factors, those will be averaged out at generation. Harmonics are generally additive, just like real load, except that most of those harmonics will be absorbed by the transformers and signal traps between the load and the generation point. As such, some of the cleanest power you will find on the grid is at the point of generation.

      Electricity loss occurs in the moment, so whenever one of the three above is not perfect, loss immediately occurs. So that means that during generation, there is constant, and never ending loss, like having a hole in a hose, the more used, the more lost.

      This is complete gobbeldy-gook. These words in this combination mean effectively nothing. Unpacking what you are trying to say would be an effort in futility.

      This is a massive quantity of energy.
      Please enlighten me as to where these losses go today?

      The losses you described are lost in the form of heat, sound, or vibration. They are lost in the loads, along the power lines, and in the transformers, and yes, in the generator, though the majority of the losses will happen closest to where the transient deviation from clean power occurs. This is almost entirely at the load side, but some other noise induced by switching (opening and closing breakers on the transmission and distribution side) or lightning strikes is also possible.

      The thing that makes me really sad about this whole situation, is that your technology sounds really cool. It sounds incredibly geeky, and in exactly the kind of way I like. I even think that there is a lot of potential with the technology. My problem is that the words you are using to describe it are nebulous. "Electricity loss" is imprecise. There are dosens of different kinds of electrical losses. It sounds like your technology (assuming it works as well as described) does a really good job of dealing with a lot of those losses, and that there would be a large number of other benefits besides just energy efficiency that would make this really marketable. In the time since reading the article, I've also visited one of the electrical engineering forums where you attempted to defend this technology. I'm incredibly disappointed that you aren't, or don't seem to be capable of, speaking in the sorts of technical terms that those with a science or engineering background need to use to properly assess your technology. I would love to know more about what you are doing, because it's exactly the sort of thing I geek out on, but you don't seem to have a sufficient grasp of the language necessary to explain it in detail.

    5. Re:Wrong Conversion Losses by ChrisDoerfler · · Score: 1

      It is great that you are so smart that you can explain to me how my technology works when you have never seen or experienced it. You are just wrong about electricity. Most people are because there has been an incomplete picture since the beginning. That is the point. The fact that you think that electricity is the cleanest at generation and that loss does not occur in the moment disqualifies your opinion of this technology because it is clear you do not understand it. Those are absurd statements and you do not even realize it. My job is to introduce and show people the results of this technology. I speak with the problem holders and solve their problems. That is all the talking I need to do. I have made attempts at explaining this to internet trolls, who only care to joke and poke fun. I find it entertaining to rile those guys up, but it is not a part of our business plan. For official responses to 3DFS technology you can submit questions to techtalk.3dfs.com. Troll forums are not where you are going to get the best information.

  25. I'm the cofounder of 3DFS, let's begin discussing by ChrisDoerfler · · Score: 1

    There is a lot of innovation here and everybody has an opinion. I spend a lot of my days talking with engineers who continue to tell me how my technology works. Anthropologically it is fascinating to watch so many people twist their heads around in circles attempting to figure out what we are doing, so here I am to answer questions. For the record, I am not always very polite in my responses, and kind of a smartass, but this comes with the territory as we will all see when the trolls come out to play. So, ladies and gentlemen, Where shall I begin?

  26. I'm the cofounder of 3DFS, let's begin discussing by ChrisDoerfler · · Score: 1

    There is a lot of innovation here and everybody has an opinion. I spend a lot of my days talking with engineers who continue to tell me how my technology works. Anthropologically it is fascinating to watch so many people twist their heads around in circles attempting to figure out what we are doing, so here I am to answer questions. For the record, I am not always very polite in my responses, and kind of a smartass, but this comes with the territory as we will all see when the trolls come out to play. So, ladies and gentlemen, Where shall I begin?

  27. Re:I'm the cofounder of 3DFS, let's begin discussi by nsaspook · · Score: 1

    Making the web rounds about your product. I've had my say about it elsewhere.

    --
    In GOD we trust, all others we monitor.
  28. Re:I'm the cofounder of 3DFS, let's begin discussi by dinfinity · · Score: 1

    I've seen way too many overly skeptical reactions on your product. To me, the technology looks amazing and sensible and the approach you have chosen with regard to protecting the technology from abuse by greed seems very noble.

    I'm afraid I don't have the EE chops to ask you the right technical questions, but I do want to wish you luck and urge you not to be demotivated by the onslaught of kneejerk skepticism. I think people have a hard time in accepting stuff that sounds too good to be true. The potential savings your company cites are huge, so it is not that surprising that people are wary. Extraordinary claims require extraordinary evidence and all that.

    They say the proof is in the pudding, so for me this was the most convincing line in the Vox article:
    "Power consumption dropped by 20 percent, server temperature dropped by 20 degrees"
    It's pretty hard to argue with numbers like that. So if could ask anything: do you have more of these examples? Hard data from external (reputable) sources on power and waste heat savings?

  29. Re:I'm the cofounder of 3DFS, let's begin discussi by ChrisDoerfler · · Score: 1

    The individual savings always varies depending on the setup and power consumption, but the 10-15% is fairly standard on non-inductive loads and 20-25% on inductive loads. Over the coming months, we are releasing a "rental" program, where prospective clients can temporarily (albeit expensively) install Software-Defined Electricity into power networks and experience it directly so that the benefits are realized firsthand. By the end of the year, the market will be deluged with information regarding the savings and improvements. In the mean time, here is a report from a live data center showing the effect on electricity consumption of two separate tier 1 server racks. https://3dfs.com/download/3dfs...