On June 27, 2026, Nikkei Asia reported that Honda had started producing batteries for AI data centers at its U.S. plant; TechCrunch confirmed the move on July 1. The facility, a joint venture with LG Energy Solution in Ohio, was built for electric-vehicle batteries. Now the other end of the line connects to data center energy storage. A factory built for the EV wave has found a new buyer after the wave receded — the clearest sign yet that AI’s power appetite is now reshaping factories that were built for cars.
What Happened: A Car Battery Line Now Feeds Storage
The Ohio plant came online just as the EV market slumped — an awkward debut. Nikkei frames the pivot as a stopgap: keep the factory humming while waiting for EV demand to recover. TechCrunch reports the batteries are now in production, destined for energy storage systems rather than cars. Notably, despite Honda’s broader restructuring, the joint venture was not dissolved — Honda concluded that “batteries are a big business on their own.” The company also just posted its first operating loss in years, which makes the pivot less a strategic option than a cash-flow necessity to keep the line alive. For storage buyers, a production line tooled at automotive volume is exactly the scale they want.
Why the Pivot: The EV Plan Is Already Over
Roll the calendar back three months. In March 2026, Honda canceled its U.S. EV programs, scrapping three planned models. The backdrop: U.S. federal EV tax credits expired in September 2025, pulling purchases forward and leaving sales down year over year. Last fiscal year Honda wrote down about $15.7 billion — partly for the EV restructuring, partly for its weakening China business. Battery capacity originally sized for hundreds of thousands of EVs needed somewhere to go, and AI data centers showed up at exactly that moment as the hungriest buyer in the market. The cells themselves are nothing exotic: they are the same cells the plant was built to make, redirected to a different class of customer.
Follow the Money: Storage Margins
The automakers’ math is blunt. Tesla’s energy division (Megapack and Powerwall) runs roughly 30% gross margins — about double its car margins and roughly triple typical automaker margins. Of the 57 GWh of storage installed in the U.S. last year, Tesla alone accounted for 82%. Ford has launched a battery storage business serving data centers and the grid; GM unveiled a sodium-ion chemistry targeting the same market in June — a deliberate bet on cheap, abundant materials and a supply chain China has not cornered, though it won’t ship until later this decade, which leaves Honda a clear runway as the player already in production. Honda’s difference is speed: while others announce chemistries, its line is already shipping. Existing factories, existing electrochemistry know-how, existing manufacturing discipline — stationary storage is a ready-made second curve.
What It Means for Data Center Power
The scale numbers do the talking. In the first quarter of this year, the U.S. installed 9.7 GWh of storage, up 32% year over year; SEIA projects annual installations above 110 GWh by 2030. Over the same horizon, data center energy demand is expected to nearly triple. Storage batteries play a double role on this board: for the grid, they balance load and make wind and solar output more predictable; for data centers, they are the buffer and backup of the interconnection-queue era. Put differently: batteries do not generate power — they change when power gets used, and on a grid where everything queues, that shaping is worth nearly as much as generation. With Honda-class automakers entering the supply side, the storage battery market gains players who arrive with large-scale manufacturing muscle and automotive quality systems. For data center operators desperate for batteries, more supply is good news — but it also means battery capacity is being re-prioritized from car-oriented to AI-oriented, and EVs and data centers will now compete directly for the same production lines.
Sources
- Even Honda is pivoting to data centers — TechCrunch
- Honda starts AI data center battery production in US — Nikkei Asia
- Everyone wants a piece of Tesla’s battery business — TechCrunch
AI-assisted summary compiled from the sources above, reviewed by a human before publishing.