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Battery VPPs
Battery VPPs: the same battery earns $1,800 or $11,000
Home batteries are the most valuable device in a virtual power plant. What they earn depends far more on your ZIP code than on the battery you buy.
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The short answer
- Batteries are the highest-paid VPP device because they can deliver several kilowatts on command, for hours, without touching comfort.
- Location decides the paycheck. The same 13.5 kWh battery earns about $1,800 over 10 years in New York’s program and about $11,200 in Connecticut’s — 17 programs, 14 states (Battery Economics).
- Pay is mostly per kilowatt, from about $10 to $300 per kW-year, so the battery’s continuous power rating matters as much as its storage.
- The catch: you give up some backup reserve on event days, and several of the best programs are proposed, closing, or depend on annual state funding.
Why batteries earn the most
A thermostat can trim an air conditioner by a kilowatt or so, and only when it’s hot. A home battery can push out 5 kW or more for two to four hours, any season, and the homeowner barely notices. That makes batteries the closest thing in a house to a real power plant — and programs pay accordingly.
California showed the scale on Sept. 9, 2026, when more than 140,000 home batteries delivered over 580 megawatts during a heat wave; Tesla’s fleet alone supplied 517 MW (pv magazine USA). Wood Mackenzie reports battery and EV deployments are now 61% as numerous as thermostat deployments, up from a much smaller base (Wood Mackenzie).
Ten-year VPP earnings for one 13.5 kWh battery
Upfront incentive plus 10 years of ongoing program payments, at each program’s published terms. 5 kW continuous discharge assumed.
Swipe to see the full chart →
Three ways battery programs pay
Per-kW summer performance is the dominant model in New England and New York: you’re paid on the average kilowatts the battery delivers across 30–60 summer events. Connecticut and Massachusetts lead here.
Upfront plus monthly credits are common at vertically integrated utilities such as Duke Energy, Rocky Mountain Power, and Arizona utilities, which trade a rebate or monthly bill credit for control of the battery.
Hosted batteries flip the model: a company such as Base Power owns the battery, installs it cheaply or free, and keeps the grid value in exchange for a supply contract. Base Power reports a 500+ MWh fleet in Texas and Illinois (Solar Power World).
Where the market is heading
New Jersey has proposed buying up to 150 MW of home and business storage at up to $200 per kW-year for 10 years, with an open-access VPP tariff planned for 2029 (Utility Dive). ComEd in Illinois has a Rider SDVPP starting at $10 per kW-season in 2027 (Energy Choice Matters). Dominion Energy Virginia launched a VPP pilot in August 2026 (Dominion Energy). Texas is testing aggregated batteries in its wholesale market through ERCOT’s ADER pilot, sized at up to 500 MW (ERCOT).
Home battery VPP earnings: 17 programs compared
Program-by-program terms, the 72% cost-recovery case in Connecticut, and how sizing changes the result.
Method and caveats
Values are reproduced from the Battery Economics case study (checked September 2026) and assume a 13.5 kWh, 5 kW battery enrolled for 10 years at today’s terms. Program terms change; several are proposed or depend on funding.