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Arizona Trialing System That Lets Utility System Control Home A/Cs

AzTechGuy writes "Arizona Public Service Co., Arizona's largest power company, is implementing a test program that would put customers' thermostats under their control to help balance power needs during critical peak usage times. APS will be able to remote control the customers' thermostats to control power draw from their A/C when there is a critical power transmission issue on the grid. Customers will be able to override these settings if they desire."

31 of 393 comments (clear)

  1. Maryland already has this by dunc78 · · Score: 4, Informative

    BGE already does this in Maryland.

    1. Re:Maryland already has this by SydShamino · · Score: 4, Informative

      Austin Energy has been giving out free 7-day programmable thermostats for years, with the caveat being that they can control them when necessary to balance load.

      This is nothing new to see here, move along territory.

      --
      It doesn't hurt to be nice.
    2. Re:Maryland already has this by D'Sphitz · · Score: 4, Insightful

      Why is it a stupid idea? It beats losing your power altogether, doesn't it? I imagine this would mostly affect people who are at work all day with the central air running full blast, the people who are home would just override it.

    3. Re:Maryland already has this by fireduck · · Score: 5, Informative

      Except, at least with the deal we got from So Cal Edison, we give them the right to shut off our air conditioner in exchange for a discount on our summer electric bill. I don't recall exactly how much of a discount on the energy they gave us, but considering that they never once actually killed our air con during the summer, I have no complaints whatsoever.

    4. Re:Maryland already has this by Anonymous Coward · · Score: 5, Insightful

      Parent is -1 Troll.

      Smoothing out peaks in ways that minimally impact people is a great idea economically and environmentally.

    5. Re:Maryland already has this by laughingcoyote · · Score: 3, Insightful

      In ./ parlance, this is stupid the same way download caps on your broadband are stupid.

      Which ISP is it, again, that lets you override download caps at will? I think that's an excellent idea-they can cap it, you say "override", no longer capped. There's also the fact that except during the highest peak periods, a lot of Net capacity remains unused, which is not true of energy.

      This is probably for the morons who can't throttle back the A/C before leaving for work and wait 20 minutes for it to cool down after they get home. If it's just got to be cool when you walk in the door, get a programmable thermostat.

      --
      To fight the war on terror, stop being afraid.
    6. Re:Maryland already has this by plover · · Score: 5, Interesting

      While I can't quite tell if you're trolling or simply greedy, there's a certain logic behind your argument.

      Right now, electricity cannot be economically stored, so generation capacity has to equal peak demand, or else someone gets browned out. Utilities go to elaborate lengths to estimate future demand, based on housing construction, industrial zoning, winter temperatures, summer temperatures, etc. They build right to the edge of what their predicted demand will be, and rely on peak plants to supplant their generation capacity during those times when they've guessed wrong. But those peak plants charge 30X or more than the average generating rate, so there's strong incentive to not use them.

      What they're doing by all this penny pinching and building right to the edge of demand is they are thinning the tolerances. In the past, many things worked well or lasted long simply because they were massively overbuilt. For example, rather than fully study and understand the material strength of an aluminum engine block with steel cylinder sleeves, they cast the engine block out of iron. Rather than measure and predict the load to within 1% of future demand, they built a plant with double or triple the planned capacity. Those systems lasted a long time as a result, and people got very used to the high availability of their services.

      And in case you were serious, the correct economic answer is yes, they should offer you the extra capacity, as long as you're personally willing to pay the price. My electric company offers demand pricing. Normal pricing is $0.11/kWH for household use, regardless of what you're using the power for. But if you willing to let them control your air conditioner, you pay only $0.055/kWH for all the electricity your A/C consumes throughout the year, plus they discount your bill by $10/month for June, July and August. Control consists of a rolling 15-minutes-on/15-minutes-off duty cycle during peak demand. My heat pump was controlled for a total of 90 hours last summer, and the difference was hardly noticeable. When my heat pump was cut in the winter, the gas furnace kicked in as needed. I save several hundred dollars per year on this program.

      --
      John
    7. Re:Maryland already has this by michaelhood · · Score: 4, Interesting

      If you can override it, essentially all they're doing is informing you of power demand, not monitoring you without your consent or forcing you to do anything. Explain what oppressive totalitarian privacy-violating government regimes (i.e "Big Brother") have to do with any of this.

      Perhaps they should just send me an SMS then - "We'd like to turn off your A/C for the next 90 minutes. Our bid is a $5 credit. Accept?"

    8. Re:Maryland already has this by Rhesusmonkey · · Score: 4, Funny

      You realize that if they wrest control of our thermostat from us we'll just start leaving the freezer door open right?

      --
      You need more psychedelic art in your life. rhesusmonkey.deviantart.com
    9. Re:Maryland already has this by cyn1c77 · · Score: 3, Interesting

      They got this on my hot water....and I can't opt out or over ride. They report only using it for about an hour at a time, and only 2 or 3 days a year for the last few years though. Yes, peak demand during summer afternoons.

      Phil

      Just out of curiosity, how does that work? You can't override a system that sits in your house?

      What do you get out of this deal? Can you just not pay your bill during your peak expense season? Quid pro quo, you know?

  2. Since customers can override the system.... by Zanth_ · · Score: 3, Interesting

    It seems like a convenient method of limiting brown-outs. The privacy implications may be enormous for some but for others it will appear to be a good idea particularly since folks can override the system.

    1. Re:Since customers can override the system.... by deep_creek · · Score: 4, Interesting

      wonder what the surcharge charge/penalty fee is for overriding the setting?

    2. Re:Since customers can override the system.... by notommy · · Score: 5, Insightful

      What exactly are your enormous privacy concerns? This already exists here in toronto. This works well. The truth is, when they raise the temperature in your ac for a period of time, you don't notice it because the temperature change in your home is not instantaneous. By the time you notice the small change, if you do at all, it'll be back to your original setting.

      The blurb makes it sound sinister IMo with stuff like "under their control". They're just trying to control the peaks so everyone has power.

    3. Re:Since customers can override the system.... by camperdave · · Score: 3, Insightful

      I'm in Toronto, Ontario. It's about 8C out. Last night I left my AC off and I woke up drenched in sweat. I have no control over the heat in my apartment other than running the AC.

      It does get sweltering hot here, but the problem is moreso the humidity than the actual temperature.

      --
      When our name is on the back of your car, we're behind you all the way!
    4. Re:Since customers can override the system.... by apoc.famine · · Score: 3, Informative

      The bears would get him then.

      --
      Velociraptor = Distiraptor / Timeraptor
  3. Only one problem I can see.... by russotto · · Score: 4, Insightful

    Your "peak periods" will correspond quite well with when it's 110 degrees in the shade... exactly when you want the AC the most.

    1. Re:Only one problem I can see.... by Clover_Kicker · · Score: 4, Insightful

      I'm sure there are all sorts of expensive, technical solutions to this problem

      Insulation?

      Caulking?

  4. Look.... by Darkness404 · · Score: 3, Insightful

    Look, if I'm paying for power, in a government granted monopoly (as most power companies are) I'd better be able to use it how I wish, while paying for it with a reasonable fee based on what I use. If they can't provide what I'm paying for they should either A) Improve the service, B) allow other competitors C) be sued by their "customers". If we had -choice- in power companies, this might not be so bad, but sure, we have an override button in 2010... but in 2020 will we?

    It is the most basic of rights to be able to use what you pay for. In many cases, if you don't like what a company wants you to do, you have action, you can A) change to a competitor or B) go without it. If I don't like Sony's policies on firmware updates for the PS3, I can just as easily buy a 360, Wii, or even decide not to buy a game console. But when it comes to electricity, theres no other providers and its just about impossible to go without electricity in 2010 (even most Amish will have electricity in their outbuildings).

    --
    Taxation is legalized theft, no more, no less.
  5. Just build nuclear power plants already... by Jackie_Chan_Fan · · Score: 4, Insightful

    It would create jobs... and energy...

    Sounds like a GREAT FUCKING IDEA TO ME.

    1. Re:Just build nuclear power plants already... by RightwingNutjob · · Score: 4, Insightful

      How about we keep the fissionable material in the fission reactor. It might actually generate electricity there.

  6. Re:Yawn, this technology has been around for 60 ye by cyp43r · · Score: 3, Insightful

    The next day, nobody goes to work as they haven't got enough battery power in their cars.

  7. Don't cry monopoly. by Anonymous Coward · · Score: 3, Insightful

    Bullshit.

    You CAN go off grid. If I lived Arizona, I'd totally slap a couple of solar panels on my roof and hook those up to the AC. Don't give me this whiny "oh, but they have a monooooooooopoly" tripe. It's only a monopoly if you're too lazy or cheap to use the alternative energy sources. Especially not in a prime solar location.

    1. Re:Don't cry monopoly. by Kral_Blbec · · Score: 4, Informative

      You got a spare 30k to put down for that? Or are you just talking out of your ass?

  8. North American Grid by DarkKnightRadick · · Score: 3, Insightful

    Instead of trying to control individual ACs like this, they should be giving out massive credits to those who go to the expense of installing solar. Even where it won't pay for itself in a reasonable amount of time, installing solar panels will make a difference (probably not so much so in places like Seattle). I would imagine that if you could get 10% of the homes in the nation (even if you were just to do that in So Cal and Arizona and other perpetually sunny places) the relief on the grid would be enormous. With advances in solar cells, combining solar and hydrogen fuel storage/use, and other alternative energy technologies (wind, for example) there should be no problem in providing enough power.

    The real problem is that the grid is ancient (relatively) and uses old, broken tech. Unfortunately the adage "if it ain't broke, don't fix it" doesn't apply when you are pushing outdated technology way past its limits.

    --
    "There is a way that seems right to a man, but its end is the way of death." Proverbs 16:25 (NKJV)
  9. Re:Yawn, this technology has been around for 60 ye by toadlife · · Score: 3, Funny

    The next day, nobody goes to work as they haven't got enough battery power in their cars.

    Which would save even MORE energy!

    Brilliant!

    --
    I don't always use unix-like operating systems; but when I do, I prefer FreeBSD.
  10. Ontario has had this program since 2008 by nufrosty · · Score: 5, Informative

    You get a $25 rebate and a thermostat/switch, and they get to control your AC to adjust your temperature by 2-3 degrees. They cap the number of times the are allowed to do it at 10 times/year.

    When can peaksaver be activated? on weekdays (Monday through Friday), most likely between 12:00p.m. to 6:00p.m. from May 1 to September 30. Never on weekends or holidays. for a maximum of ten activations during the summer and only for a total of four hours during any one activation. As an example; in 2008, the peaksaver program was activated only five times.

    http://everykilowattcounts.ca/residential/peaksaver/understanding-electricity-demand.php

  11. Power 101 by stox · · Score: 4, Interesting

    Roughly, the first 90% of the load cost is X, the next 9 to 10% cost is 10X. If you need to buy a remaining 1% on the spot market during a squeeze, the remaining 1% will cost 100X.

    Being able to shed that top 1% can make a big difference.

    --
    "To those who are overly cautious, everything is impossible. "
  12. Listen to the gray hair on this. by jeko · · Score: 5, Insightful

    It'll be voluntary today.

    It'll be mandatory tomorrow.

    If they weren't planning on making it mandatory, they wouldn't do it in the first place.

    Seen it a billion times.

    --
    He put his boots up on the table and made a face. "The sig," he smirked. "You can waste your life in search of the sig."
  13. Can bigger systems get advance notice? by Animats · · Score: 5, Interesting

    Residential systems usually don't have heat storage, but larger systems, with chilled water, often do. Some even make ice at night when power is cheap, to be melted during the day. It would be helpful to have a few hours advance notice of a hot period, so that the system could chill down an insulated water tank for use later.

    Power companies generally have a load curve planned a day ahead. That info is available; here's PJM's dashboard, which tells you far more than you ever wanted to know about the power grid for the northeastern United States. (Load right now: 55,292 megawatts. 1,896 megawatts of that is wind power. Spinning reserves are 2,274 MW. Current trouble report: "As of 09:30 hours, a Non-Market Post Contingency Local Load Relief Warning of 11 MW in the Rachel Hill area of FE (PN) has been issued for Transmission Contingency Control. Post Contingency Switching: Open Roxbury at Shadegap, Close Threesprings at Shadegap, open Curryville at Claysburg, open Snakespring at Bedford North." Tomorrow's estimated peak is around 71 gigawatts, expected at 17:30 hours.) The estimation system uses historical data and weather reports, plus bid info from really big users. So one can plan a day ahead if your HVAC system has heat storage.

    Routine control is exercised by financial means - all the players submit bids, which have a time range, a low output and price, a high output and price, and a ramp value. The control center crunches on these and decides who generates how much power. Large power buyers can bid, too; they have the option of saying how much they'll cut their load as the price rises. A big data center might choose to be a market player. When there are troubles, the control center can take "non-market actions", like the one above, but most of the time, the outstanding bids determine who does what.

    California went too far in deregulation, and had electricity auctions every half hour at one point. There were brokers and dealers who were pure speculators, and this affected live power operations in real time. That caused so much churn that there were blackouts. So now, bids are for a day ahead, and the matching of supply and demand is algorithmic. All this data is public, to keep the markets honest. That's why PJM offers such detailed data about their power grid.

    1. Re:Can bigger systems get advance notice? by Animats · · Score: 3, Interesting

      That message just means that, due to some problem, the power grid as currently configured was one failure away from having to drop 11MW of load. This occurs when a line in the transmission system is out of service, and the remaining lines are carrying the load, but there's no redundancy. So orders are issued to close certain switches and open others, or to start up additional generators, so that the system is reconfigured to again allow for any single failure. PJM's control center is announcing, as a warning, who potentially gets dumped if they lose another resource. The area mentioned is not necessarily the cause of the problem. Actual load dumps are very rare; I think the last one in the PJM control areas was in 1997.

      For Slashdot readers, it's like bringing a replacement disk on line when a RAID disk system loses a disk. The RAID system is still working, but there's now a single point of failure until a new drive is switched in.

  14. You are from the UK, NOT US by SmallFurryCreature · · Score: 4, Insightful

    I know that as a UK resident you might believe you are part of the US but you are not... yet.

    Anyway, there is a reason US citizens consume more then anyone else on this planet. It is a culture defined by entitlement. I can have the largest car, so I must have it and then I must use it.

    I can have an airco, therefor everything must be airco'ed and it must run all the time.

    An American really can't even deal with the notion that there might be something wrong with this attitude. Watch Mythbusters and their constant search for fuel efficiency in a 3 ton pickup with 1 person in it and no cargo. How about driving a smaller car? Oh, they do entire segments on how they get smashed between two trucks driving at top speed. No test of course if the results would be any different with a SUV (Answer: no, SUV's only share the fuel efficiency with tanks, not safety).

    And the solution is terribly simple, pay more for your elec so that more power facilities can be built. But that is not an option either because all the profits go to shareholder, not into investments for the future.

    It is an amusing system, you got Americans claiming they are the most advanced country, when large parts of the country regularly brown-out. California has had it for years, and no riots yet. When your electricity network is as reliable as one in Africa, maybe it is time to take a long hard look at the way you are running thing.

    Don't worry, some American with mod points will remove this post to avoid to many Americans having to be upset by the truth.

    --

    MMO Quests are like orgasms:

    You may solo them, I prefer them in a group.