B2U reaches ~100 MWhs of operational energy storage sites using repurposed EV batteries
SAN ANTONIO, Texas, Sept. 09, 2026 (GLOBE NEWSWIRE) — B2U Storage Solutions today announced that its Bexar Martinez battery energy storage system (BESS) project has entered commercial operation, which will be delivering 28 MWh of grid services to ERCOT. Located near San Antonio and connected within CPS Energy’s service territory, the project is built entirely from repurposed electric vehicle batteries, demonstrating the value of second-life storage at utility scale.
This is the second site in Texas where B2U has developed and equipped with its patented BESS cabinets with repurposed EV batteries. By giving these batteries a second life, B2U extends their useful value well beyond their time in vehicles, reducing waste and lowering the cost of grid storage. Projects that utilize B2U’s BESS deliver infrastructure investors significantly higher returns than those available from other domestic BESS vendors.
With Bexar Martinez now operating, B2U’s total portfolio providing grid services to ERCOT in Texas exceeds 50 MWhs. Across Texas and California, the company is managing more than 5,000 repurposed EV batteries and is operating roughly 100 MWh of energy 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. “Reaching 50 MWhs in Texas is an important milestone, but the bigger story is what it represents. 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.”
The project supports grid reliability in one of the fastest-growing regions of the ERCOT market, helping meet rising electricity demand with a lower-cost storage solution. B2U expects to deploy an additional 50+ MWhs in ERCOT over the next 6 months.
Demonstrating bankability, the Bexar Martinez project and B2U’s other sites qualify for the domestic content bonus under the Investment Tax Credit (ITC), have received 3rd party financing, and have been acquired by B2U Infrastructure Partners.
About B2U Storage Solutions, Inc.
B2U Storage Solutions manufactures, develops, deploys and operates Battery Energy Storage Systems (BESS) with our patented EPS technology platform and integrated repurposing services that unlock the value of EV batteries. B2U’s proven, bankable solutions are designed for grid-scale projects or large energy users, providing superior pricing, low-risk energy storage solutions that qualify for the domestic content tax credit bonus.
For more information, visit www.b2uco.com. Connect with us on LinkedIn and YouTube.
Please direct all media inquiries to:
Mike Viesca, B2U PR Lead
B2U@silverline.com
Mary Cauwels, Head of Marketing
925-303-8511 mary.cauwels@b2uco.com
