Slashdot Mirror


User: Harlequin80

Harlequin80's activity in the archive.

Stories
0
Comments
2,180
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 2,180

  1. The FCAS component is the key on Tesla's Giant Battery In Australia Saved $40 Million During Its First Year, Report Says (electrek.co) · · Score: 3, Interesting

    There are multiple solar farms in Australia that are currently not connected to the grid because they haven't been able to get their output stability to the point that the network operator will allow them to connect. The FCAS component of the farms always increased the cost and reduced the output significantly but was key to keeping the network stable.

    This has been a relatively new change though, a couple of years ago solar compliance was taking a week to 10 days before allowing connection. Now it's out to 6 months or more. This unfortunately caused RCRTomlinson a large civil contractor to collapse as they had final payments on projects tied to the grid connection of projects.

    https://reneweconomy.com.au/rc...

  2. Re:3rd Launch for that booster. on SpaceX Launches More Than 60 Small Satellites Into Orbit (bloomberg.com) · · Score: 2

    While the design aim is 10 launches SpaceX is operating in essentially uncharted territory. I wouldn't be surprised at all if there are some components that are wearing faster than expected and or aren't living up to design specifications.

    Given they had a bracket fail on a launch way below its rated load and wreck a launch, I think having all components living up to their design tolerances under stresses previously never tried before would be downright amazing.

  3. 3rd Launch for that booster. on SpaceX Launches More Than 60 Small Satellites Into Orbit (bloomberg.com) · · Score: 5, Interesting

    Most interesting, for me anyway, is that this was the 3rd launch for this booster. It was also recovered so conceivably it could be used again. Be very very interesting to know how the boosters structure is holding up to the stresses.

  4. Re:Environmental impact of a tunnel? WTF? on Elon Musk's Boring Company Cancels Los Angeles Tunnel Following Lawsuit (gizmodo.com) · · Score: 1

    An EIS is generally wider than the natural environment impacts. It also covers social, & economic impacts.

    eg. this is the EIS objectives for a major tunnel near me.

    The objectives of the EIS are:
    ! to identify potential environmental, social and economic impacts and to ensure that adverse impacts are avoided or mitigated where possible; and
    ! to identify potential community benefits, including environmental, social and economic benefits.

    Where unavoidable, the likely impacts (direct, indirect and cumulative) must be examined fully and remedial measures proposed, so that the development of the Project, including the selection of the final project specification, is based on sound economic, social and environmental protection and management criteria.

    Consistent with this objective, the EIS should be a stand-alone and comprehensive document containing sufficient information to make an informed decision on the potential impacts. The document should provide:
      for interested bodies and persons, a basis for understanding the project, alternatives and preferred solutions, the existing environment that it would affect, both on and off the site, the impacts that may occur and the measures to be taken to mitigate all adverse impacts;
      for groups or persons with rights or interests in land, identification of the impacts of the proposed Project on that land including access and measures to mitigate all adverse impacts; and
      for the Cg, a framework against which to:
    - consider the economic, social and environmental aspects of the project in view of legislative and policy provisions and decide whether the project can proceed or not;
    - set conditions for approval, as appropriate, to ensure economic, social and environmentally sound development; and
    - where required by legislation, recommend an environmental management and monitoring program.
    It is the responsibility of the Proponent to identify and address, as fully as possible, the matters relevant to the Project in complying with the statutory requirements for EIS preparation.

  5. Re:This does not scale well on First Ever Plane With No Moving Parts Takes Flight (theguardian.com) · · Score: 1

    I don't believe it had any control surfaces. It would have to be perfectly windless for this thing to fly straight.

  6. Re: And providers will do as they always have done on Ajit Pai Wants To Raise Rural Broadband Speeds From 10Mbps To 25Mbps (arstechnica.com) · · Score: 1

    When X is low the first people to benefit will be those who already have a connection, but one that falls under the broadband benchmark. The cost of implementation would be the lowest and so the required push would be the lowest.

    There will come a point where connections incentivised by a bounty of X will start to drop. At this point you increase X. This will push the next rung of consumers into the band of being commercially viable to run a connection. You continue this process until you have reached the maximum X you are willing to subsidise or your connection target has been hit.

    The method is effective because it puts all the competing providers in a situation where if they wait too long they will miss out as someone else will jump in and steal the bounty. They all know that a customer is worth $Y once they are connected and will know most people don't churn their ISPs

    Inevitably customers that it is cheaper to connect, will get connected first. I honestly can't see a way around this. But, by using a bounty system that slowly increases you will find the lowest price point for each connection.

  7. Re:Loving the quiet again. on Ask Slashdot: What Kind of Keyboard Do You Use With Your Computer and Why? · · Score: 1

    Same.

    My personal keyboard is the Microsoft X6. It was marketed as a gaming keyboard. But I love the ability to move the numberpad to the left side, don't use any of the gaming feature and like the fact the keys are relatively close together.

    The only downside is I have literally worn the paint off left shift, S, L & C. So now they are more gently glowing red squares.

  8. I'm a member of two closed facebook groups that are just for specific models of 3d printers. One has 48,000 memebers and the other 18,000.

    Neither of these groups is promoted or operated by the manufacturer. They have just grown, in essence, as a support group. I would have thought if your business relied on a group it should have even more members....

  9. Re:This does not scale well on First Ever Plane With No Moving Parts Takes Flight (theguardian.com) · · Score: 1

    Depending on how rigid it is it would make an amazing slope soarer. Basically stay airborne forever

  10. Re:This does not scale well on First Ever Plane With No Moving Parts Takes Flight (theguardian.com) · · Score: 1

    In the video it looks like it's bungee launched.

  11. Re:This does not scale well on First Ever Plane With No Moving Parts Takes Flight (theguardian.com) · · Score: 4, Interesting

    Agreed. 5m wing span at 2.5kg is extremely light with a massive lifting surface. 60m glide from a head height launch would be easy.

    But did it take off from standstill. Article is unclear. If it self launched that is far more interesting.

  12. Wonder how much thrust it's producing on First Ever Plane With No Moving Parts Takes Flight (theguardian.com) · · Score: 2

    I would be fascinated to know how much thrust that is producing. How variable the thrust is etc.

    Does the thrust increase with airspeed? I'd get about 2 mins of flight time on those numbers with a standard battery I use in my wings. But I get about 10-15 mins of flight depending on how much I'm caning it.

  13. Re: And providers will do as they always have done on Ajit Pai Wants To Raise Rural Broadband Speeds From 10Mbps To 25Mbps (arstechnica.com) · · Score: 1

    Well not for all the people who now have connections that didnt before....

    There is already a gap. A bounty approach will move more to the haves from the have nots.

  14. Re:What rural Americans 'deserve'. on Ajit Pai Wants To Raise Rural Broadband Speeds From 10Mbps To 25Mbps (arstechnica.com) · · Score: 2

    I think it might be the definition of comparable. And it's also Politician speak.

    I don't think a baseline connectivity standard is a bad thing to aim for. Targetting 10/1 or 25/3 for rural doesn't mean that equals urban populations. Most urban populations should really be looking at 100/100 on todays tech. Fiber to the curb and gpon tech to the house does that with bucket loads of capacity to spare.

    But for day to day outcomes for most people, having a 10/1 or 25/3 stable connection is comparable to having 100/100. No your google drive won't sync instantly, but most outcomes at a population level would be comparable.

  15. Re:And providers will do as they always have done. on Ajit Pai Wants To Raise Rural Broadband Speeds From 10Mbps To 25Mbps (arstechnica.com) · · Score: 5, Interesting

    Why not just have the money paid on connection?

    Think of it bounty style. Everytime you connect someone at 25/3 or higher your will get $X. Overtime X increases. That way providers will hit the low hanging fruit first. And then come back for the hard ones once X is high enough.

  16. Is the UE benefits at a state defined level or a level relative to the salary of the employee?

  17. I could be wrong in my understanding of some US states employment law, but i understood that there are states with "at will" employment law meaning you can be fired at anytime without reason at the will of the employer.

    My understanding is that that is not all states but i wouldnt know which state was or wasn't "at will".

    In the uk and aus that employer right doesnt exist outside of very narrowly defined criteria. So in the us you could fire someone who says no to the implant "at will" where as uk and aus the employer would get nailed.

  18. Re:Nope ! on More Companies Plan To Implant Microchips Into Their Employees' Hands (engadget.com) · · Score: 3, Interesting

    I'd be amazed if this could be enforced by a UK employer anyway. The UK has quite strong employee protection laws, and requiring a surgical procedure to remain employed would be almost unenforceable.

    It's very different to the US.

    Here in Aus the idea would go down like a turd in a punch bowl and would be outlawed as soon as a Labor govt was in even if the LNP were stupid enough not to stop it themselves.

  19. Re:Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 1

    I don't think anyone is suggesting having the evs depleted. Having 5% of the total capacity of your EV available for network storage would have a massive impact on the total storage available on the network if all cars were electric.

    Also no country is going to only go solar, its a flawed argument to suggest that. There will always be a mix of solar, wind, and others in order to share the generation around. That other will be coal or nuclear or gas for the foreseeable future. But if you can load shift your renewables via storage your requirement for always on baseload will drop.

    It's not a silver bullet but it all helps.

  20. Re: Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 1

    Electricity for an EV in Australia is $1 per day to a connection in your house. I assume that people have somewhere they park their vehicles where you live? Garage, Car ports / driveways? Unallocated street parking is more of a challenge and would require either allocation or some kind of municipal connection.

    Obviously though my post referred to having the car plugged in over night.

  21. Re: Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 1

    Highly unlikely that would come anywhere near close to range of an EV.

    Apparantly average annual mileage for americans is ~ 22,500km or 62km per day. A tesla has a range of 7 to 8 times that before you need to charge. Is doing a 450km drive in a day, even a semi-regular occurrence? Thats a full tank of fuel for most cars.

  22. Re: Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 1

    Owners of EVs do keep their cars charged to less than full. If you own a tesla they recommend keeping it less than fully charged to the batts last longer.

    My 2 mates that own Tesla S both have theirs charge to less than full. They have theirs set to about 300ish KM range each morning and if they plan to go further they set it to full charge the night before.

    Total capacity of EVs on the network may vary wildly, but they aren't generation sources. They are excess capacity dumps. You would still have heat dumps for use if shedding is required.

    There will always be situations where a particular location isn't generating, but when you have a country wide grid the chances of having everything down is low. You also are able to plan for these things. Pumped storage, network level batteries, rapid cycle gas power plants etc are all part of your network design. The challenge with renewables is the storage component. Storage costs are currently too high, but potentially EVs could be the solution to that.

  23. Re: Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 1

    Must have been because they were rentals in the uk then.

    Its not something used here is aus though

  24. Re: Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 2

    Pretty trivial to solve tbh. If its a smart meter for an ev then having it charge to 75% and then go into storage mode would be simple. That gives you a min range level. (Configurable ofcourse)

    As for charging at night vs day you would nornally do a mix of renewables with a base load generator. Solar will be offline at night but wind wont be, and power demand is a lower at night as well meaning smaller changes in supply have bigger effects.

    During the day there will still be a % of evs connected to the network. Either those ar home or those on work charging systems.

  25. Re: Switching to EVs does very little good if on Israel Aims To Ban Gasoline, Diesel Vehicles By 2030 (cleantechnica.com) · · Score: 1

    Well I live in Australia now and almost no houses have direct gas connections, and i lived in the uk for 4 years from 2004 and none of the areas i lived had gas connections to the houses.

    So while the concept of home fueling of an lng car would be awesome the infrastructure for large scale fueling at home isnt there and would cost an absolute fortune to deploy.

    I even have a gas hotwater system and gas stove and they are run off 45kg bottles.