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Thread: Solar happenings

  1. #981
    Model S VIN P01536 Robert.Boston's Avatar
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    Quote Originally Posted by Ampster View Post
    Is that something that needs to change? Would that be a change for the better and be more in the direction of a smart grid?
    There are discussions about creating a balancing market across the entire Western Interconnection, or at least a big chunk of it that would encompass WA, OR and CA. It's harder than it sounds, though, to allow real-time variations in transfers between control areas. An obvious fix would be to consolidate bigger areas into a single control area, which is what we've done in the swaths of the Eastern Interconnection. E.g., the PJM Interconnection runs the grid from New Jersey to Chicago to the NC Outer Banks. The PacNW states have never been able to develop a similar centralized dispatch because the Bonneville Power Administration refuses to join, and BPA's transmission is central to the PacNW operation.

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    Quote Originally Posted by omgwtfbyobbq View Post
    Can't that DC backbone reverse direction too? I was under the impression that they sent power down during their mild summers and we sent power up during our mild winters.
    The power flow does flip in the winter, but not because CA has excess energy, but because AZ/NM does, and that energy flows up through CA to OR/WA.

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    Quote Originally Posted by Robert.Boston View Post
    There are discussions about creating a balancing market across the entire Western Interconnection
    It can't come soon enough, IMO. BPA's Columbia nuke, its hydro and growing wind all create over-supply problems at night. I hope the new FERC transmission rule (1000) gets traction, and we see more interconnection. The other valuable tool yet to be exploited, it whether these states enter into regional plans where renewable energy purchases can offset a lack of domestic (state) generation. Getting power to states that make promises about renewables use, is one of the next utility profit centers. Cripes, PacNW overnight power can be a penny/kwh, or negative. There is very little parity in electric pricing. Lines will fix that.

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    Quote Originally Posted by Robert.Boston View Post
    The power flow does flip in the winter, but not because CA has excess energy, but because AZ/NM does, and that energy flows up through CA to OR/WA.
    Robert, I'm curious about the AZ POCOs. Based on wikipedia, they are not part of any ISO. Who handles the dispatch? Is it up to the individual assets like Palo Verde nuclear plant to control output?
    Have you ever seen an hourly load profile for SRP or APS like the http://www.caiso.com/outlook/outlook.html CA-ISO chart? I'm very curious if residential solar has had noticeable effect on their load profiles yet.

  4. #984
    Model S VIN P01536 Robert.Boston's Avatar
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    APS and SRP are each their own balancing control area operator, so they call the shots about all grid-tied generation in their respective areas and schedule all interchange with CAISO and other control areas. My colleagues had worked to get a CAISO-like independent system operator in AZ, NM and NV called "Desert STAR" but various state politics killed that aborning.

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    Senior Member Lloyd's Avatar
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    Soligent is advertising panels for $.69/watt. That is the lowest I have ever seen!
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  6. #986
    Member tigerade's Avatar
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    A good article on utility reaction to home solar power's rise.

    Utilities, sensing threat, put squeeze on booming solar-roof industry - Nation - The Boston Globe

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    Thought I would mention a couple milestones we notched here in California. This Wednesday and Thursday (shown below) we hit 50,000+ MWh of daily production of solar and solar thermal. This is the first time that we ever hit that level for a single day. Also, February will be the first month where we will hit 1,000,000 MWh of total power produced. The interesting thing about these numbers is that the 1,000,000 MWh per month will probably now turn into a minimum versus a maximum, with new plants coming online. And then the 50,000 MWh daily rate at some point later will probably turn into a minimum too. Cloudy January days may delay that a couple years though.

    If I have this right, 50,000 MWh would provide power for 1.67 million homes if they used 30 KWh each per day. Or enough to charge 588,235 85kw Model S cars from empty to full.

    And, in 2014 overall, we got 5% of all power from large scale solar:

    California Sets Solar Power Record −

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    Future Model E Signature Series #001 owner. Even if they don't offer a Brown version

  8. #988
    Model S VIN P01536 Robert.Boston's Avatar
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    This is particularly remarkable when you realize it does NOT include any of the on-site PV.

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