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Groton Utilities provides electric and water services with competitive rates in southeastern Connecticut. This guide covers solar costs, incentives, net metering policies, and savings projections specifically for Groton Utilities ratepayers in Groton.
$0.23/kWh
Estimated residential rate. About 15% below the state IOU average of $0.27/kWh.
Available
Net metering available for qualified systems.
Groton
Groton Utilities provides electricity to the town of Groton in Connecticut.
$0.25/watt
Max: $2,500. One-time incentive for residential solar.
(860) 446-4000
Official WebsiteFree Audit Available
Schedule a free home energy audit to identify savings opportunities before going solar.
Municipal utilities typically offer lower electricity rates because they operate as non-profit, community-owned entities. There are no shareholders to pay, and local governance keeps costs in check. Here is how Groton Utilities’s estimated rates compare to Connecticut’s investor-owned utility (IOU) average.
| Metric | Groton Utilities | CT IOU Average |
|---|---|---|
| Residential Rate (est.) | $0.23/kWh | $0.27/kWh |
| Annual Cost (900 kWh/mo) | $2,484 | $2,916 |
| Ownership | Community-owned, non-profit | Shareholder-owned, for-profit |
| Rate Setting | Local board/town meeting | State PUC regulated |
| Savings vs. IOU | ~15% lower rate = ~$432/yr savings | |
Rates shown are estimates based on publicly available data. Municipal utility rates can change based on local board decisions. Even with lower rates, solar panels still provide significant savings by reducing or eliminating your electric bill. Contact Groton Utilities for your exact current rate.
Understanding available incentives is key to maximizing your solar investment. Here is what Groton Utilities customers can access in 2026.
The federal residential solar ITC expired on December 31, 2025. Homeowners who purchase solar panels with cash or a loan no longer receive a federal tax credit. However, third-party owned systems (solar leases and PPAs) may still qualify under Section 48/48E, with the financing company claiming the credit. This makes local utility rebates more valuable than ever.
Groton Utilities
$0.25/watt
Max: $2,500
One-time incentive for residential solar.
Must be a Groton Utilities customer.
ev charger
$250
Rebate for Level 2 EV charger.
Residential customers only.
heat pump
Up to $800
Rebate for air source heat pumps.
Must replace fossil fuel heating.
Here is what a typical 8 kW residential solar installation looks like for Groton Utilities customers, including available incentives and projected savings over 25 years.
Projection assumes $0.23/kWh rate with no annual increase (conservative estimate). Actual savings may be higher as rates typically increase 2-4% per year.
With a solar lease or power purchase agreement (PPA), a third-party company owns the system on your roof. The system owner can still claim the 30% federal ITC under Section 48/48E, which often results in lower monthly payments for you. You pay a fixed monthly rate or per-kWh price that is typically lower than your utility rate, with no upfront cost.
Customize your system size to see estimated costs and savings based on Groton Utilities’s rates and available incentives.
Estimate your solar costs and savings with Groton Utilities
19 panels at 430W each
Annual Production
10,000 kWh
Year 1 Savings
$2,300/yr
Payback Period
~10 years
25-Year Net Profit
$32,414
Estimates based on 1250 kWh/kW annual production, 0.23/kWh utility rate, and 0.5% annual panel degradation. Federal residential solar tax credit (Section 25D) expired Dec 31, 2025. Actual results vary by roof orientation, shading, and usage patterns.
Net metering available for qualified systems.
Net metering is the billing mechanism that makes rooftop solar financially attractive. When your solar panels produce more electricity than your home uses, the excess flows back to the grid and your meter effectively “runs backwards.” Here is the typical process with Groton Utilities:
As a municipal utility, Groton Utilities may participate in different state and federal programs compared to investor-owned utilities. Here is a summary of what Groton Utilities customers can typically access.
The utility offers its own rebate and incentive programs for customers (see the incentives section above for details).
Home Electrification and Appliance Rebates are available regardless of utility type. Up to $8,000 for income-qualified households.
Municipal utilities set rates locally without shareholder profit margins, which often results in lower electricity costs.
Groton Utilities offers net metering, allowing solar customers to earn credits for excess generation.
Groton Utilities is a municipal utility, also known as a publicly owned utility or municipal light plant (MLP). Unlike investor-owned utilities (IOUs) such as large regional utilities, municipal utilities are owned and operated by the local community.
Groton Utilities customers pay approximately $0.23/kWh, which is roughly 15% less than the state average for investor-owned utilities ($0.27/kWh). As a municipal utility, Groton Utilities sets rates locally, and revenue stays in the community rather than going to shareholders.
Yes. Groton Utilities offers a solar rebate of $0.25/watt (max $2,500). One-time incentive for residential solar. Note: The federal residential solar tax credit (Section 25D) expired on December 31, 2025, so this local rebate is now one of the most important incentives available to homeowners.
Yes. Groton Utilities offers net metering for solar customers. Net metering available for qualified systems.
As a municipal utility, Groton Utilities may participate in different programs than investor-owned utilities. Contact the utility directly or visit their website to learn about available efficiency programs and rebates.
To install solar panels as a Groton Utilities customer: (1) Get a free solar estimate to determine your optimal system size. (2) Contact Groton Utilities about interconnection requirements and any pre-approval needed. (3) Choose a NABCEP-certified installer. (4) After installation, apply for any available utility rebates. (5) Your system connects to the grid and you begin saving. The process typically takes 2-4 months from signing to activation.
Get a free, personalized solar estimate tailored to Groton Utilities’s rates and incentives. Our NABCEP-certified team handles everything from design to permitting to interconnection.
Serving Groton and all of Connecticut. Free consultation, no obligation.