Vermont (VT) • Green Mountain Power (GMP — Vermont)Min Backup Reserve: 20% Storm Backup Reserve
Green Mountain Power (Vermont) BYOD $10,500 Battery VPP Rebate Guide
Vermont’s Green Mountain Power (GMP) pioneered the residential Virtual Power Plant: offering homeowners up to $10,500 in upfront cash rebates ($850 to $1,050 per kW up to 10 kW) in exchange for letting GMP discharge the battery during ISO-New England regional capacity peaks.
Upfront Enrollment Rebate
$850 – $1,050 per kW Upfront Cash Rebate (Up to $10,500 Max!)
Annual Recurring Payout
Upfront Lump-Sum Discount Applied for 10-Year Peak Sharing Commitment
Dispatch Season & Window
ISO-NE Monthly & Annual System Peak Hours (3–5 hours per event, ~5–10 events/mo)
1. Annual & 5-Year VPP Earnings Breakdown by Battery Size
Open Interactive VPP Calculator →Compensation Formula: $850/kW base + $100/kW bonus in constrained grid zones + $100/kW for VT-approved systems (Max 10 kW = $10,500)
| Home Battery Configuration | Estimated Annual VPP Payout | 5-Year Cumulative Value |
|---|---|---|
| 5.0 kW Battery Enrollment (Standard Zone) | $4,250 Upfront Cash Rebate | $4,250 + 30% Federal ITC |
| 10.0 kW Dual Battery Enrollment (Constrained Zone Max) | $10,500 Upfront Cash Rebate! | $10,500 + 30% Federal ITC |
2. VPP Dispatch Rules, Backup Reserves & Aggregator Fine Print
- 1Why GMP Pays $10,500 Upfront for Your Battery: ISO-New England charges utilities massive "Forward Capacity Market" (FCM) and Regional Network Service (RNS) transmission fees based on Vermont’s single highest 1-hour demand spike each year/month. Discharging 5,000 home batteries during that 1 hour saves GMP millions of dollars!
- 2GMP Always Pre-Charges Ahead of Vermont Ice Storms: Whenever a winter blizzard or high-wind warning hits Vermont, GMP suspends peak shaving and locks all enrolled batteries at 100% SoC.
Recommended Homeowner-Owned Battery Setup
Dual 5kW / 13.5kWh–14.3kWh Heated LFP Battery Bank (10kW Enrolled)
✓ Powerwall✓ Enphase✓ FranklinWH✓ SolarEdge
Green Mountain Power (GMP) Bring Your Own Device (BYOD) & Powerwall Lease VPP FAQ
Is it better to use GMP’s $55/month Powerwall Lease or the $10,500 BYOD Rebate to own my battery?
Buying your own battery with the $8,500–$10,500 BYOD upfront rebate PLUS the 30% Federal Tax Credit gives you 100% ownership of the asset at the end of 10 years, whereas under the lease GMP owns the hardware.
What happens if I move or disconnect my battery before the 10-year GMP BYOD term ends?
The BYOD agreement stays with the home or can be prorated if unenrolled early.
More Paying Utility Virtual Power Plant Programs
CA: CEC Demand Side Grid Support (DSGS) — Option 3 Behind-the-Meter Battery VPP →TX: ERCOT Aggregate Distributed Energy Resource (ADER) VPP & Real-Time Wholesale LMP →MA: Mass Save & Rhode Island Energy ConnectedSolutions Daily Dispatch VPP →CO: Xcel Energy Colorado Renewable Battery Connect (RBC) →