Virtual power plant (VPP)
A software platform that aggregates many distributed resources, such as batteries, EVs, heat pumps and rooftop solar, and operates them as a single dispatchable unit.
A virtual power plant (VPP) pools distributed energy resources (DERs) that are individually too small to participate in wholesale or ancillary service markets, and dispatches them through cloud software as if they were one plant. Assets may include home and commercial batteries, rooftop PV, EV chargers (including vehicle-to-grid), heat pumps, water heaters, CHP units and flexible industrial loads.
Functions:
- Energy arbitrage on day-ahead and intraday markets.
- Frequency reserves and balancing.
- Capacity market participation and peak reduction.
- Local congestion relief for distribution operators.
Examples: Next Kraftwerke (Germany) aggregated more than 10,000 units and roughly 10 GW before its acquisition by Shell; Tesla's South Australian VPP links thousands of Powerwalls; Sonnen and Octopus Energy (Kraken) run residential fleets in Europe; California and Texas programmes dispatch home batteries during grid emergencies. The US DOE's Pathways to Commercial Liftoff report on VPPs (2023) estimated 30 to 60 GW of existing US VPP capacity and a potential 80 to 160 GW by 2030, saving around 10 billion USD per year in grid costs.
Key requirements are reliable communications, telemetry meeting operator standards, forecasting of availability, and market rules that admit aggregators, such as FERC Order 2222 in the US and the EU Electricity Directive.
Related terms
All terms →- Demand response
Changes in electricity consumption by end users, in response to price signals or operator requests, to balance the grid.
- Microgrid
A local group of generators, storage and loads with defined boundaries that can operate connected to the main grid or independently in island mode.
- BESS (Battery Energy Storage System)
A complete grid- or site-connected battery installation, including cells, battery management, power conversion, thermal management and controls.
- Vehicle-to-grid (V2G)
Bidirectional charging that lets a parked electric vehicle export battery energy to the grid, providing storage and grid services.
- Ancillary services
Services beyond bulk energy that system operators procure to keep the grid stable and secure, such as frequency reserves, voltage control and black start.
- Behind-the-meter
Equipment located on the customer's side of the utility meter, such as rooftop solar, home batteries or EV chargers, which primarily serves on-site load.