Short Wave Short Wave

When batteries get a facelift, so does renewable energy

Sep 16, 2026 · 13m

Summary

Host Cooper explores the rapid rise of grid-scale battery storage, visiting a California solar facility to see how lithium-ion batteries now power thousands of homes. The episode traces the "battery domino effect" from 1990s camcorders to electric vehicles, explaining how consumer demand and policy drove a 90% drop in costs. Experts discuss emerging technologies like sodium-ion and redox flow batteries that promise longer durations and lower environmental impact, highlighting how storage is becoming essential for powering AI data centers and electric aviation.

Topics discussed

Intro: Cooper demonstrates grid-scale battery storage The rise of battery storage in California Tour of Cal Flats solar and battery facility Drivers of demand: EVs and AI data centers Origins: Sony camcorders and the 1990s The battery domino effect across consumer sectors EVs, China's manufacturing hub, and cost drops The 2021 tipping point for US grid storage Why lithium-ion technology is superior Lithium iron phosphate (LFP) as the grid standard Future applications: Electric aviation Sodium-ion batteries: Cheaper and more abundant Redox flow batteries for multi-day storage 2030 forecasts and the overlooked energy revolution Credits and series promotion Sponsor reads and NPR news headlines Emmy Awards recap promotion
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