Residential interconnection applications in Connecticut are assessed a $25 upgrade fee starting in 2024. This fee is used to fund grid upgrades required for solar PV projects to interconnect. For projects participating in the Residential Renewable Energy Solutions (RRES) program, the upgrade fee and RRES meter fee are charged as one payment.
The fee is waived for customers who are income eligible, and for projects in Distressed Municipalities. The current Distressed Municipality list can be viewed on the DECD website. Income-eligible customers are those with incomes at or below 60% of the state median income. Participation in Eversource's Winter Protection Program, New Start, Matching Payment Program, Low Income Discount Rate, or the Home Energy Solutions Income Eligible (HES-IE) program indicates a customer is income-eligible.