Texas is expanding its energy storage fleet by repurposing used electric vehicle batteries, according to Solar Power World.
A new project near San Antonio is turning those retired batteries into backup support for the grid, helping meet fast-rising electricity demand without relying entirely on newly manufactured storage systems.
Here's what to know
Per Solar Power World, B2U Storage Solutions' second Texas project based on repurposed EV batteries recently began operations. The facility, known as the Bexar Martinez battery energy storage system, is supplying 28 megawatt-hours of grid services to the Electric Reliability Council of Texas.
In all, B2U Storage Solutions said the Bexar Martinez facility brought its total repurposed energy storage capacity in Texas to 50 MWh. In addition to Texas, the company also maintains battery-storage facilities in California.
Across those two states, the company said it manages more than 5,000 reused EV batteries and runs roughly 100 MWh of storage in both solar-paired and stand-alone configurations.
"Bexar Martinez proves that second-life batteries can deliver reliable, cost-effective grid services at scale," said Freeman Hall, CEO of B2U Storage Solutions, according to Solar Power World.
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The facilities show that batteries no longer usable in EVs can still have enough useful life to store backup electricity for the grid. Repurposing retired EV batteries not only helps reduce the cost of building a battery-storage facility. It also extends the lifespan of batteries and the materials they contain, conserving resources.
More background
Energy storage can help make electrical grids more resilient and cost-effective by storing electricity when supply is abundant and sending it back out to the grid when homes and businesses need it most.
This makes for a more resilient system during periods of heavy use and reduces strain during times of peak demand. Adding more storage to the system can also help reduce the risk of shortfalls and make it easier to balance fluctuating supply and demand.
Repurposed battery systems in particular also offer a lower-cost option compared to storage sites built entirely with brand-new equipment.
In this way, the new battery-storage facility near San Antonio can serve as a model for the future.
"Reaching 50 MWh in Texas is an important milestone, but the bigger story is what it represents," said Freeman Hall, CEO of B2U Storage Solutions, per Solar Power World. "Every battery we redeploy keeps valuable resources in service longer, strengthens the grid, and shows the market that repurposed EV batteries are ready to compete today."
Where can I learn more?
As utilities and developers race to keep up with demand and reinforce the grid, Texas has become a major testing ground for battery storage. The following articles cover that buildout from various angles, from second-life EV batteries to new utility-scale systems paired with solar.
• Near San Antonio, a massive new battery is taking shape with a crucial grid-boosting role.
• Across Texas, Intersect Power plans $800 million in battery installations to shore up the grid.
• Greenalia has made a massive move into Texas with a 1.9-gigawatt renewable expansion.
• In Texas, officials announced a new solar and battery project to reinforce the grid.
• Nationwide, giant batteries are transforming how solar and wind power reach the grid.
The bigger picture is clear: Energy storage is moving to the center of Texas energy planning, and used EV batteries could play a crucial role.
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