Connecticut Solar Incentives — Complete Guide
Energy Storage Solutions Program (CT Green Bank)
Connecticut's Energy Storage Solutions (ESS) program, administered by the CT Green Bank along with Eversource and United Illuminating, provides incentives for homeowners who install battery storage systems.
Two Components
1. Upfront Incentive
- One-time payment based on storage system's capacity (kWh)
- Standard residential systems can receive up to $16,000
- Paid through your installer within approximately 8 weeks of project approval
- Low-income customers and those in underserved communities may qualify for higher incentive levels
2. Performance Incentive
- Ongoing payments for up to 10 years
- Based on how much energy your battery contributes to the grid during active dispatch events
- Events typically: a few hours on high-demand summer and winter days
- Payments made twice per year
How to Qualify
- Battery must be installed by a participating contractor registered with the CT Green Bank
- Venture Home handles the ESS application on your behalf
Learn more: energystoragect.com
Property Tax Exemption
Connecticut requires that all passive or active solar heating systems and geothermal energy resources be fully exempt from property taxes statewide (CGS § 12-81(57)).
What This Means
Your solar installation will not increase your property tax assessment.
No application is required.
Sales Tax Exemption
Connecticut exempts solar panel systems, battery storage, inverters, mounting equipment, and installation labor from the 6.35% state sales and use tax.
How It Works
- Exemption is automatic at point of purchase
- On a typical $20,000 system, this saves approximately $1,300
Netting vs. Net Metering Note
Connecticut uses "netting" rather than traditional net metering. Excess generation is compensated as a monetary credit (not kWh) at a set rate lower than the full retail rate.
See [[net-metering|Understanding Net Metering]] for full explanation.
Quick Summary
| Incentive | Value | How to Claim |
|---|---|---|
| ESS Upfront | Up to $16,000 | VH handles application |
| ESS Performance | Ongoing (10 years) | Automatic after enrollment |
| Property Tax Exemption | Full exemption | Automatic |
| Sales Tax Exemption | 6.35% | At purchase |
Questions? Contact Customer Success at 800-203-4158.