How batteries are already changing the grid

电池如何改变电网

The Indicator from Planet Money

商务

2025-01-13

9 分钟
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Renewable energy, when it comes to solar and wind power, has always had a caveat: it can only run when the wind blows or the sun shines. The idea of a battery was floated around to make renewables available 24/7. For years, it existed as an expensive, little-used technology. And then in 2021, it took off. In California, there is now enough grid-scale battery storage to power millions of homes, at least for a few hours, and it's growing fast. How did that happen, and what does the newfound success mean for the grid? This week, we dig into three stories about grid-scale battery storage. Today, we go on-the-ground to California, where batteries first took off in the U.S. Related episodes:Rooftop solar's dark side (Apple / Spotify) How EV batteries tore apart Michigan (Update) (Apple / Spotify) How China became solar royalty (Apple / Spotify) Wind boom, wind bust (Two windicators) (Apple / Spotify) For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org. Fact-checking by Sierra Juarez. Music by Drop Electric. Find us: TikTok, Instagram, Facebook, Newsletter. Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy
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  • NPR.

  • In 2008, Nancy Skinner was elected to the California State legislature.

  • So technically, my term began in 2009.

  • Nancy has witnessed the state's vision for clean energy firsthand.

  • Soon after she was elected, a bill was being considered to get more of their electricity than ever from renewables.

  • But that there was a problem.

  • When the sun doesn't shine or the wind doesn't blow, there's no power.

  • Several people approached Nancy to raise this issue.

  • We're going to have to figure out how to store it.

  • And one way to store energy.

  • A battery.

  • Extra solar and wind electrons that aren't needed on the grid could flow into a battery.

  • The problem was, though, grid scale storage wasn't really a thing.

  • Nonetheless, Nancy was optimistic that that eventually it would happen if you created a market signal.

  • So she introduced a bill requiring utilities to purchase a certain percentage of battery storage when they bought electricity.

  • Nancy remembers pushback, that this was just pie in the sky.

  • This is not real.

  • Like another California pipe dream.

  • Still, in 2010, the bill passed, although nothing really happened.

  • Grid scale batteries remained a pie in the sky concept for years.