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Grid Storage News

Discussion in 'Energy, Environment, and Policy' started by ItsNotAboutTheMoney, Dec 29, 2019.

  1. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

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    #1 ItsNotAboutTheMoney, Dec 29, 2019
    Last edited: Dec 29, 2019
    OK, I'm going to start a thread for this because ...

    Electric Power Monthly - December 2019 for October 2019.

    Batteries

    Capacity (MW):

    PeriodPriorChangeNewChange
    Month1,003.03.31,006.30.33%
    YTD852.1154.21,006.318.10%
    Rolling768.9237.41,006.330.88%
    Plan +12mo93.550.0140.2.
    Reported utility-scale battery capacity is creeping up and passed 1GW last month. 1GW deserves recognition.
    An additional 50MW has been reported for the next 12 months, bringing the total to 140.2MW.

    Obviously this ignores the retail or homebrew small-scale batteries that are being deployed.

    For comparison of how small scale this is currently:

    Hydroelectric Pumped Storage:

    Capacity (MW):


    PeriodPriorChangeNewChange
    Month22,909.20.022,909.20.00%
    YTD22,830.279.022,909.20.35%
    Rolling22,830.279.022,909.20.35%
    Plan +12mo191.60.0191.6.
    Note that pumped storage also stores a lot more energy.
     
    • Informative x 1
  2. nwdiver

    nwdiver Well-Known Member

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    Do you mean MWh? Not trying to be pedantic... I saw a storage report recently that actually WAS MW...
     
  3. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

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    This is capacity, as reported in the Summer Capacity section of the EIA's Electric Power Monthly.

    Since, unlike pumped storage, batteries are not (yet) reported in the generation statistics (whereas pumped hydro is reported as negative generation), the best we could probably do would be to back-calculate from the "Usage Factors for Utility Scale Storage".

    For usage factors and capacity they only include whole-month values. It seems that the batteries that are deployed aren't being used as much.

    Batteries:

    Usage Factor (MW):


    ValuePriorChangeNewChange
    Month Capacity748.9254.11,003.033.93%
    Month Factor5.0%-1.6%3.4%-32.00%
    Rolling 12mo Factor5.5%-1.1%4.3%-20.95%
    Pumped Storage:

    Usage Factor (MW):


    ValuePriorChangeNewChange
    Month Capacity22,830.279.022,909.20.35%
    Month Factor9.4%-1.2%8.2%-12.77%
    Rolling 12mo Factor10.9%-0.5%10.4%-4.43%
    For Capacity Factors, the technical note says that it's:
    sum(generation) / sum(capacity x time)
    over generators and time periods.

    For October 2019 batteries, assuming Usage Factor is the storage equivalent, and reported as negative generation as per Pumped Storage:

    -1,003.0 MW x 31d x 24 h/d x 3.4%
    = -25371.888MWh
    = -25.4GWh

    Pumped Storage was -373GWh in October 2019.
     
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  4. SageBrush

    SageBrush REJECT Fascism

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    I routinely come across this problem of watt Vs watt*hour reporting of battery, and I don't mean simple errors in units.
    I was at my local electric utility's presentation about energy storage a few weeks ago and they used power units. I suppose it makes sense for them since the primary use is load shaving and FACS.

    It is typical (but by no means a given) that 4 hours of the power rating = the capacity.
     
  5. miimura

    miimura Well-Known Member

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    Tesla sells 2 hour and 4 hour systems for commercial batteries.
     
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  6. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

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    Electric Power Monthly - January 2020 for November 2019.

    Batteries added a whopping 6.3MW of capacity.
    Planned 12 month capacity increased 5.8MW to 139.7MW.

    Capacity (MW):

    PeriodPriorChangeNewChange
    Month1,006.36.31,012.60.63%
    YTD852.1160.51,012.618.84%
    Rolling770.7241.91,012.631.39%
    Plan +12mo140.25.8139.7.
    Usage Factor (MW):

    ValuePriorChangeNewChange
    Month Capacity768.9238.71,007.631.04%
    Month Factor5.3%-1.6%3.7%-30.19%
    Rolling 12mo Factor5.3%-1.2%4.2%-21.60%
     
  7. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

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    Electric Power Monthly - March 2020 for January 2020.

    Grid batteries added 8.1MW of capacity.
    Planned 12 month additional capacity increased 149.8MW to 528.6MW.

    Capacity (MW):

    PeriodPriorChangeNewChange
    Month1,015.28.11,023.30.80%
    YTD1,015.28.11,023.30.80%
    Rolling873.6149.71,023.317.14%
    Plan +12mo386.9149.8528.6.
     
  8. mspohr

    mspohr Well-Known Member

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    Lithium-ion storage is here to stay with no ‘post Li-ion’ era in sight

    A German-Israeli research group has gathered to discuss which storage technologies may outperform lithium-ion batteries in the future. They concluded that there is no such a thing as a “post Li‐ion” era in sight. They recommended a “side‐by‐side” approach for multiple technologies in different applications, as well as the hybridization of technologies.
     
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  9. RubberToe

    RubberToe Supporting the greater good

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  10. iPlug

    iPlug Member

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    Only the tip of the iceberg. Biden has outlined and aggressive plan to target an emissions-free power sector by 2035. That's gonna mean orders of magnitude more batteries coming on line soon among many awesome developments.

    Biden Announces $2 Trillion Climate Plan
     
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  11. 21miDay

    21miDay Member

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  12. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

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    If you use 750,000MW generation as peak and assumed the pessimistic scenario that storage would have to provide all the power during the peak (which it wouldn't), and that batteries were 0.25C, then you'd need 3,000,000MWh (3TWh) of batteries to be able to meet all of that peak demand.

    That might seem like a big number, but that's the equivalent of 60,000,000 50kWh batteries.

    The USA has about 253 million light vehicles. So, if we can heavily electrify transportation, meeting peak demand with battery storage would be an easy task in comparison.
     
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