Google Expands Its Virtual Power Plant Tenfold to 1,070 Megawatts, Paying Homes and Businesses to Step Aside for AI Data Centers

Google has signed an expanded agreement with energy platform Voltus to build what the two companies call a 1-gigawatt virtual power plant across the PJM Interconnection, the largest power grid region in the United States. The deal, announced on October 22, adds 1,070 megawatts of new flexible capacity on top of a 100-megawatt agreement the companies signed in June 2026 — roughly a tenfold expansion, and one of the largest known distributed-capacity portfolios ever assembled by a hyperscale technology company.

The mechanics are unusual for a company better known for chips and cables. Rather than building generation, Google pays Voltus to aggregate thousands of homes and businesses across PJM and signal them during moments of grid stress. Participants briefly reduce consumption or switch to on-site assets — batteries, smart thermostats, industrial process adjustments — and in exchange receive direct payments and bill savings funded by Google. Neither company disclosed the contract value or its duration.

The destination is not accidental. PJM serves about 67 million people across 13 states and Washington, D.C., including Northern Virginia, the densest data center market in the country. According to PJM's own planning documents, data centers account for 30 gigawatts of the 32 gigawatts of electricity-demand growth the region forecasts between 2024 and 2030. The strain is already visible in market outcomes: the 2028/2029 capacity auction cleared at its price cap of $325 per megawatt-day and still fell 6,831 megawatts short of PJM's reliability requirement, and the grid operator had to call on demand response during an unseasonably warm stretch on October 13 and 14.

"Distributed energy resources are powerful tools for managing a modern, reliable grid while keeping energy affordable," said Ellen Zuckerman, Google's head of energy market development for North and South America. "Expanding our initial commitment tenfold demonstrates our core effort to actively bring our own capacity to the grids that serve us." Voltus CEO Dana Guernsey framed the deal as a way to "translate data center growth into direct economic benefits for businesses and homes."

For Voltus, a San Francisco-based company founded in 2016, the Google contract lands weeks after a strong funding round. On October 8 the company announced $225 million in new financing, with plans to scale its platform to 20 gigawatts by 2030. Demand response is also becoming a serious business in its own right: Utility Dive reported that demand-response revenue in PJM jumped 240 percent year over year to $523.5 million, while Sunrun agreed in August to supply Voltus's hyperscaler programs with capacity from home solar-plus-storage systems in PJM and MISO.

The deal is a reminder that hyperscalers are buying every kind of electron they can find. In recent months Google alone has signed long-term power agreements for new gas-fired capacity in Wyoming and a large nuclear arrangement with Constellation. A March 2026 study by the Brattle Group, commissioned by a coalition that includes Google and Tesla, estimated that smarter use of existing grid assets could save US consumers more than $100 billion over the next decade, and a Department of Energy analysis has suggested virtual power plants could triple by 2030 and save ratepayers roughly $13 billion a year.

There is a limit to what the approach can do. Aggregated thermostats and batteries shave peaks; they do not build transmission lines or baseload generation, and PJM will still need both to meet its 2036 forecast of roughly 222,000 megawatts of peak demand. But as an interim measure, buying flexibility from customers is faster, cheaper and cleaner than waiting years for new plants — and for Google, the cheapest megawatt in the queue may be the one someone else agrees not to use.