Virtual power plant (VPP) platform profile
WeaveGrid: what EV managed charging is worth to the grid
How WeaveGrid schedules EV charging around local grid limits, what that is worth per car, and how much reaches drivers.
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The short answer
- WeaveGrid manages EV charging for utilities. Its DISCO (distribution-integrated system capacity orchestration) software schedules each car’s charging around transformer, feeder and system limits (WeaveGrid).
- Most of the value is local. In WeaveGrid’s illustrative PJM estimate, active managed charging is worth about $475 per EV a year, and $240 of that is avoided distribution upgrades (WeaveGrid).
- Drivers are paid a fraction of that. WeaveGrid-run programs typically pay $120–$180 a year. The gap funds program costs and, if the program is cost-effective, lowers rates for everyone.
- Dispatch is daily and automatic. Drivers set a ready-by time and charge level; the software decides when the car charges.
Where WeaveGrid fits
Highlighted boxes are the roles this company plays; the green bar shows where its programs sit from demand response to an orchestrated VPP.
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What managed charging is worth per EV
Annual value per EV in an illustrative PJM utility, dollars
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How the value adds up
WeaveGrid’s estimate starts with kW. Unmanaged charging adds about 0.84 kW per EV at the evening system peak; active management cuts that to 0.17 kW, a 0.72 kW reduction at the generator after line losses. At $193 per kW-year, that is worth about $140 a year in generation capacity, plus about $55 in transmission capacity (WeaveGrid).
The largest piece is distribution: about $240 a year, the average of Argonne and Brattle studies. Time-of-use rates alone capture little of it, because many cars start charging the moment the cheap period begins, creating a new local peak. That is why active management is worth about $230 a year more than time-of-use charging (WeaveGrid).
Participant pay in WeaveGrid-run programs
Annual incentive per EV, dollars, compared with the illustrative grid value
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Where WeaveGrid operates
Programs include Ameren Illinois FlexCharge, CPS Energy’s EV Smart Rewards in San Antonio and Xcel Energy’s Charging Perks and Optimize Your Charge in Colorado, New Mexico and Minnesota (WeaveGrid; WeaveGrid; WeaveGrid). With GM Energy, it is opening utility programs to GM EVs, including bidirectional charging where available (WeaveGrid), and it supplies the software behind PG&E’s GM charger bundle (Charged EVs).
Utilities use it to defer upgrades. In Baltimore Gas and Electric’s program, WeaveGrid’s software reads vehicle telematics and utility data to schedule charging at specific distribution locations (Utility Dive).
What it means for program design
Value is on the feeder
Most managed-charging value is avoided distribution spending, so programs work best where EV clusters already strain transformers.
Budget against $350
WeaveGrid estimates a program is cost-effective if all-in costs, including incentives, stay below about $350 per EV a year in its PJM example.
Telematics is the connection
Most enrollments run through vehicle or charger APIs, so automaker partnerships determine who can join.
Method and caveats
Figures are company-reported, checked October 15, 2026. The $475 value is WeaveGrid’s illustrative PJM estimate; it is not a payment and not a VPP Economics forecast. Participant pay is gross and excludes the driver’s time-of-use savings.