Google taps Voltus VPPs for PJM data centre capacity

Google has signed a three-year agreement with Voltus to unlock up to 100MW of capacity on PJM Interconnection through a Google-funded virtual power plant. Voltus will aggregate batteries, smart thermostats and other flexible assets from homes and businesses, paying participants for grid flexibility. The event signals a practical shift in data centre power strategy from waiting for new infrastructure to activating existing demand-side capacity.

• Three-year BYOC deal targets 100MW of demand-side flexible capacity

• Data centre operators are turning to demand-side orchestration to ease grid constraints

The fact

Google has signed a three-year agreement with Voltus to unlock up to 100MW of capacity on PJM, the largest US electricity grid. It is the first hyperscale adoption of Voltus' BYOC model. Google will fund a virtual power plant that aggregates residential batteries, smart thermostats and controllable loads. Voltus coordinates participating homes and businesses, pays them for flexibility, and reduces demand or releases stored energy during peak periods.

The Assessment

Google is testing whether hyperscalers can bypass waiting for new transmission lines and interconnection approvals by paying for flexibility already embedded on the customer side of the grid. The 100MW target is small against modern AI campus demand, but it offers a replicable model for constrained markets. Power access is becoming part of the infrastructure stack alongside land, fibre, chips and grid software.

What to Watch

Watch whether Google and Voltus scale beyond 100MW, prove reliable dispatch from distributed assets, and export the model to CAISO or ERCOT.