Sunrun advances commercial talks with hyperscalers on subsidized home batteries

Federal regulators rejected PJM’s proposed rules for bring-your-own-capacity deals last week. This creates uncertainty for aggregators seeking to monetize distributed energy resources. Mary Yang, former regulatory counsel for PJM and chief operating officer at 804 Advisory, said the rejection means uncertainty will keep dragging for stakeholders like Sunrun.

Sunrun shifts from concept to commercial talks with hyperscalers

Sunrun is moving from the conceptual stage into commercial negotiations with hyperscalers. Paul Dickson, president and chief revenue officer of Sunrun, outlined the strategy this week. The program pitches subsidized home batteries as a way to get data centers online faster, especially in constrained grid areas. Hyperscalers would fund the consumer offering rather than spending money to build on-site generation or fund new development.

The approach could also mitigate local pushback on data centers related to rising electric bills. Dickson said the model takes people frustrated about rate hikes and equips their homes with solar and a battery, subsidized by the very hyperscaler they were frustrated with. He is bullish that the capacity-as-a-solution model will be widespread fast, perhaps within months or a year, due to hyperscaler investment. He cited the frustratingly slow pace of decision-makers considering behind-the-meter capacity as firm, calling it one of the biggest hurdles.

Proof of concept shows existing model in action

A recent initiative in California offers a proof of concept. Last month, Pacific Gas & Electric announced a virtual power plant proof of concept using residential capacity from Sunrun, Tesla, and Everyday Electric. The program, funded by Google, relies on 21,000 existing energy devices in the San Jose area. Google stated the capacity from this program will not be directed to any data centers in the region. The company has faced growing scrutiny over a planned 250-megawatt cloud facility in the same area.

Broader capacity-as-solution initiative gains traction

In June, Sunrun, Tesla, and Everyday Electric announced joint plans to offer a combined 16 gigawatts of new and existing flexible capacity to hyperscalers and utilities. The partnership, operating under the name 'capacity as a solution,' aims to bring significant power capacity online primarily to attract data center customers. Power resources will be pooled from hundreds of thousands of home battery systems operated by Sunrun and Tesla and from more than eight million devices managed by Renew Home.

The trio aims to deliver more than 16 gigawatts of flexible energy to ease the burden on traditional power distributors, who are struggling to keep up with data center demand. Sunrun CEO Mary Powell said the grid of the 1800s cannot power the innovation of 2026. She stated that when data centers throttle down during expensive hours, distributed power plants can activate to help provide power while protecting families from costly new infrastructure bills. Power capacity for hyperscalers will be arranged on a first-come, first-served basis.

Market structures will dictate the approach. In ERCOT, Sunrun plans to rely on simple bilateral commercial agreements with hyperscalers for virtual power plant deals. In regulated markets, the company is exploring trilateral deals involving utilities and potentially regulators. This push aligns with soaring demand forecasts. According to a study by Goldman Sachs Commodities Research team, U.S. data center power demand is expected to climb to 41 GW in 2026 and reach 66 GW the following year.

Market response reflects growing investor confidence

The market reacted positively to these developments. Sunrun stock rose 18% in a single day, on track for its biggest single-day percentage gain in nearly 10 months. The stock was among the top ten trending tickers on Stocktwits, where retail sentiment turned bullish from neutral amid high message volumes. One user said if the companies scale their offering, it would shift energy production from centralized generation to aggregated residential power. Another called the firm the future of the utilities power market. Despite being down 14% so far this year, RUN stock has more than doubled in value over the last 12 months.

Other players are active in this space. Voltus launched a bring-your-own-capacity framework a year ago where hyperscalers finance virtual power plant programs in constrained regions in exchange for megawatts delivered to local utilities. In June, Voltus announced Google as its first customer for the offering. Sunrun is moving from conceptual stage into commercial negotiations with hyperscalers about subsidizing new home energy installations.