Groton Dept of Utilities's energy comes from natural gas, solar, and oil. Natural Gas is the largest source of electricity, providing 90% of Groton Dept of Utilities's energy. Solar is the second largest source, making up 7%. Oil provides 3% of Groton Dept of Utilities's electricity.
90%
Natural Gas
7%
Solar
3%
Oil
The average electricity rate for Groton Dept of Utilities customers is 15.9 cents/kWh. Groton Dept of Utilities has several different electricity rates for residential customers, as shown in the table below.
| Rate Name | Rate Type | Cost Per kWh |
| Residential | Fixed | 14¢ |
| Residential GRT | Fixed | 14¢ |
In 2021, there were no outages recorded in Groton Dept of Utilities.
Carried over as a kWh credit for one year; Reimbursed to customer at the avoided cost of wholesale power at the end of the year (March 31).
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