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Comment by viewtransform

13 hours ago

California power generation profile yesterday showing solar and battery proportion.

https://engaging-data.com/california-electricity-generation/...

Is California enough to drag the rest of the country with them, though?

  • Other comments mentioned Texas, but check out the Ercot dashboard: https://www.ercot.com/gridmktinfo/dashboards

    Not only did solar and wind provide the vast majority of power during the day today, as I write this comment coal is neck-and-neck with storage as an energy resource - i.e. power that was saved during the day because it was so sunny.

    Coal simply makes no economic sense as a power source for electricity generation anymore. Natural gas is still needed as base load for when renewables are insufficient, but in perhaps the "free market ideological capital" of Texas, the trend towards renewables + storage is simply the economic choice.

    • Today Texas kissed 50% generation from solar around 11:30AM and was generating 63% from wind last night.

  • Grid-connected PV in Texas has grown between 33% and over 100% every year since 2008, which outpaces the growth of solar in the US in the same timeframe.

    California's percentage of solar generation as a share of the entire solar generation in the USA has shrunk every year since 2016.

    It's not been accurate to say that California is dragging the rest of the country with them for a long time when it comes to energy generation.

  • It doesn't need to. The reality is companies are going to go for whatever the cheapest cost for electricity is, and solar w/ batteries has taken that lead. Capitalism happens to align with a renewable energy green transition, regardless of whatever the US political engine wants. At the end of the day most companies are going to choose profit over political ideology.

What does it mean to do battery-based power generation?

  • It means you charge the batteries when you have extra power (like a sunny day), and you use that charge to handle the times you don't.

    • Hm, so that seems to kind of obscure how that power actually got generated. Maybe it was all coal, although that seems unlikely. It seems like battery usage is important to measure. But calling it generation seems to obscure something, unless they're double-counting the generation. That's misleading in another way though.

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