As Texas braces for tighter power margins and record demand on the ERCOT grid, Sunrun and NRG Energy are transforming home batteries into a giant virtual power plant. The two companies are integrating more home battery storage into the grid and tapping those batteries when the state needs power the most.
The solar + storage provider and energy company announced a new multi-year partnership aimed at accelerating the adoption of distributed energy in Texas, with a focus on solar-plus-storage systems that can be aggregated and dispatched during periods of high demand. The idea is simple: use home batteries as a flexible, on‑demand power source to help meet Texas’s rapidly growing electricity needs.
Under the deal, Texas homeowners will be offered a bundled home energy setup that pairs Sunrun’s solar and battery systems with retail electricity plans from NRG’s Texas provider, Reliant. Customers will also get smart battery programming designed to optimize when their batteries charge and discharge. As new and existing Sunrun customers enroll with Reliant, their combined battery capacity will be made available to support the ERCOT grid during times of stress.
“This partnership is a major step in achieving our goal of creating a 1 GW virtual power plant by 2035,” said Brad Bentley, President of NRG Consumer. “By teaming up with Sunrun, we’re unlocking a new source of dispatchable, flexible energy while giving customers the opportunity to unlock value from their homes and contribute to a more resilient grid.”
Sunrun, which has one of the largest fleets of residential batteries in the US, will be paid for aggregating the capacity, and participating Reliant customers will be compensated by Sunrun for sharing their stored solar energy.
The arrangement gives Texas households a way to earn money from their batteries while also improving grid reliability in a state that continues to see rapid population growth, extreme weather, and rising electricity demand.
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