Tesla Energy & Battery News

Tesla quietly killed the Solar Roof in August 2026. Here's what happened, why it failed, and what existing owners need to know. Full breakdown.

600MW dispatched from residential batteries in a single event. Here are the five figures that show how home energy storage is reshaping the grid. Read now.

Tesla Powerwall owners sent 5 GWh back to California's grid in 2026 VPP events. Here's what the numbers mean for owners and the energy grid.

Tesla Energy just posted the official way to check Powershare compatibility. Here's the exact steps, which vehicles qualify, and what software you need.

Tesla's Texas lithium refinery is now feeding cathode production at Giga Texas — powering 4680 cells for Cybertruck and Cybercab. Here's what the milestone means.

SpaceX's new Colossus 2 microsite confirms Tesla Megapacks will supply 3.3 GWh to the Memphis AI cluster — likely America's largest grid-connected battery.

Tesla has started making nickel cathode locally at Gigafactory Texas. Here are 6 key facts about what this means for 4680 cells and battery supply chains.

Tesla marks the official Semi rollout Thursday at 9 PM ET with a livestream tied to the opening of its 1.7M sq ft Sparks, Nevada factory built for 50,000 Semis/year.

Tesla Energy now lets Powerwall 2 owners in North America and Australia expand storage by adding a Powerwall 3. Here's what the mixed-generation setup means.

Tesla Powerwalls and Sunrun batteries dispatched 580 MW to California's grid on Sept 9 — the largest residential virtual power plant event ever recorded.

Tesla's Vehicle-to-Home feature with Powerwall is live. Which cars qualify, what hardware you need, and how much backup power you actually get. Read now.

Tesla Energy's Heat Mode keeps your Powerwall 3 ready on the coldest days. Here's exactly how it works, what it costs in energy, and what you need to do.