Used Waymo robotaxi batteries become backup storage for power grids

Here's something that might surprise you — thousands of used batteries from Waymo’s robotaxis could soon power our grids instead of just sitting in junkyards. Jeremy Hsu reports that Waymo has teamed up with B2U Storage Solutions in a game-changing move. Instead of letting these batteries go to waste, they’re being repurposed for stationary energy storage. That’s a huge deal because these big battery packs can store excess renewable energy during quiet times and feed it back when demand spikes. And here’s where it gets even more interesting — Freeman Hall of B2U points out that they’re extracting full residual value from EV batteries once they’re no longer fit for cars. So, what does this mean? It’s a smart way to extend the life of batteries and help stabilize power grids, especially as renewable energy grows. Jeremy Hsu highlights that this partnership could unlock hundreds of megawatt-hours of storage, making our energy systems more resilient — and all from the batteries we already have. The takeaway? Sustainable tech isn't just about new innovations — it’s about rethinking what we already own.