B2U Storage and LG Energy Solution Team Up to Repurpose Batteries for the Grid
B2U Storage Solutions and LG Energy Solution announced on September 24 that they will collaborate on repurposing batteries for grid-scale energy storage, giving B2U priority access to LG Energy Solution battery capacity as the two companies explore joint business opportunities across the US battery energy storage systems (BESS) market. The agreement pairs a Korean battery manufacturer’s supply base with a California company whose business model is built specifically on giving retired batteries a second working life before they are recycled.
What each side brings to the deal
B2U Storage Solutions holds patented technology for repurposing used batteries — including packs originally built for electric vehicles — into stationary storage systems, an approach it has already deployed commercially in California, where it has aggregated retired EV battery packs into grid-connected storage projects. LG Energy Solution, one of the world’s largest battery makers and a major supplier to automakers and utilities, gives B2U a larger and steadier pipeline of battery packs to work with than it could source on its own. Neither company disclosed a dollar value or a specific storage capacity target for the partnership.
Why repurposing matters as storage demand accelerates
The premise behind battery repurposing is that a pack no longer suited to the demanding cycling of an electric vehicle can still hold enough capacity for years of slower, less intensive grid-storage duty, delaying the cost and environmental impact of recycling until later in the battery’s life. B2U and LG Energy Solution are positioning the partnership around exactly the customers now driving a surge in US storage demand: utilities and developers building bulk grid-storage capacity, and large commercial users — data centers among them — that need to firm up their own power supply. Framing the pitch around cost-competitiveness rather than novelty reflects how crowded the BESS supply market has become, with new-cell manufacturers, second-life specialists and utility-scale integrators all competing for the same pipeline of utility and hyperscaler contracts.
An early-stage collaboration, not a signed project
The announcement describes a strategic collaboration to jointly pursue business opportunities rather than a specific, financed storage project with a fixed size or in-service date. That leaves open how much capacity actually reaches the grid, and on what timeline; the value of the tie-up will become clearer once the companies announce individual projects built under it. For now, it signals that a major battery cell manufacturer sees enough demand in the second-life storage segment to formalize a supply relationship with a repurposing specialist, rather than treating repurposed batteries purely as a recycling-adjacent afterthought.
Sources: B2U Storage Solutions and LG Energy Solution, joint press release via GlobeNewswire, “B2U Storage Solutions and LG Energy Solution Collaborate on BESS Business Opportunities by Repurposing Batteries,” Sept. 24, 2026 — partnership terms and company statements; Solar Power World, “B2U, LGES partner on battery repurposing for grid-scale applications,” Sept. 2026 — independent trade coverage and market context.
Related coverage: What Is the Tesla Megapack? | Sodium-Ion Batteries: Commercially Real in China, Still Unproven Elsewhere | Greenvolt Starts Building 2.4 GWh Poland Battery Project With BYD Supply Deal
Illustrative image. Photo: Novoklimov, CC0, via Wikimedia Commons — source
[…] rollouts elsewhere, and comes as other storage players pursue their own supply strategies, from repurposing used batteries for grid storage to backing alternative chemistries such as sodium-ion cells that could eventually ease reliance on […]