Electric-vehicle startup Rivian has found an unusual power source for its Illinois car factory: old batteries from its own cars. Rivian is reusing EV batteries for energy storage—the largest repurposed-battery energy storage system for an automotive manufacturer in the U.S., says The Wall Street Journal (April 14, 2026).

Once completed later this year, Rivian’s plant in Normal, Ill., will draw electricity from more than 100 Rivian EV batteries in an area the size of a small parking lot. It will reduce Rivian’s dependence on the power grid during peak demand hours. It saves Rivian money on what it takes to run the plant.
“It reduces the demand on the grid, which is great. These batteries are already built,” said Rivian’s CEO. “We need to integrate them and connect them together, but that can happen quite fast. They don’t have to get imported from some other place.”
This is the latest example of the battery-energy storage industry boom in the U.S., where lithium-ion packs—not dissimilar to those in EVs—are increasingly used to power businesses, industrial facilities, residential zones and artificial-intelligence data centers.
The AI boom is part of what’s driving unprecedented energy demand in the U.S. Electricity prices around the country are rising so quickly that they are outpacing inflation, rising 4.5% between 2024 and 2025.
Many automakers, including Ford and GM, are retooling battery factories once meant for EVs to meet that demand, rather than let those facilities sit idle. Meanwhile, energy storage was the fastest-growing business last year for Tesla, which has long supplied batteries for residential and commercial power. The setup is expected to initially provide 10 megawatt-hours of energy, equivalent to about 1,000 home-energy battery storage units linked together.
Classroom discussion questions:
- What are the advantages and disadvantages of Rivian’s approach?
- How do other firms handle the energy demands from the AI boom?

In recent years, General Motors recalled tens of thousands of its Chevrolet Bolts in the U.S. over risk of battery fires. Hyundai pulled roughly 80,000 electric sport-utility vehicles after roughly a dozen caught fire. Last September, a Nissan Leaf ignited while charging in Tennessee, and the fire required more than 45 times the water needed for a gas-powered-car fire to be extinguished.





