When it comes to solar and wind power, renewable energy 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. Then in 2021, it took off. In this episode, we explore how this new energy market works in two states: California and Texas. 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. What does this success mean for the grid, and how did the state support it? Then, we visit Texas, whose approach is more free-market rodeo. The state has the second-most battery storage capacity in the U.S. And in Texas, their system was recently put to the test. So, can these large-scale batteries can help prevent blackouts? These two stories come from our sister show The Indicator, which recently reported a series about the electric battery market. Today's show was hosted by Cooper Katz McKim, Darian Woods and Wailin Wong. The original Indicator episodes were produced by Cooper Katz McKim and Corey Bridges, and edited by Kate Concannon. It was fact-checked by Sierra Juarez and engineered by Jimmy Keeley and Neil Tevault. Alex Goldmark is Planet Money's executive producer. Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy

The fires in Los Angeles are almost out. Residents are starting to trickle back into their burned-out neighborhoods. When they get to their houses, they face a series of almost impossible questions: Do we want to live here amongst all this destruction? And if we do, how do we even start? Today, we meet a father and son from Altadena who are confronting those choices. We pass through the National Guard checkpoints and enter the burn zone, where we see for ourselves all the challenges waiting for residents who want to rebuild. And we talk with an insurance adjuster about how the industry tries to value people's homes — and all of their possessions — after they have been reduced to rubble. For more on the California wildfires, check out our newsletter. We spoke with an economist who survived Oakland's wildfires in 1991 and has big ideas for how to rescue California from its insurance doom spiral. This episode of Planet Money was hosted by Sarah Gonzalez and Nick Fountain. It was produced by James Sneed and edited by Keith Romer. It was fact-checked by Sierra Juarez and engineered by Neil Tevault with help from Gilly Moon. Alex Goldmark is Planet Money's executive producer. Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy