https://utilityratecalc.com/connecticut/ New and coming changes to residential electricity rates in Connecticut, from the official tariffs. en-us Mon, 02 Nov 2026 12:00:00 +0000 https://utilityratecalc.com/connecticut/united-illuminating/Revenue decoupling adjustment (Rider DR): −0.3178¢ per kWh to −0.3078¢ per kWh, from September 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective September 1, 2026, Rider DR, C.P.U.C.A. No. 2524 (Docket No. 26-01-04, Motion No. 11).Tue, 01 Sep 2026 12:00:00 +0000f1b0155f2e6fc4e1 https://utilityratecalc.com/connecticut/united-illuminating/Standard Service generation: 13.695¢ per kWh to 11.9865¢ per kWh, from July 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective July 1, 2026, Rate R, C.P.U.C.A. No. 2505 (Docket No. 26-01-02).Wed, 01 Jul 2026 12:00:00 +00005b35e502543ce1b5 https://utilityratecalc.com/connecticut/united-illuminating/Bypassable FMCC: 0¢ per kWh to −0.0392¢ per kWh, from July 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective July 1, 2026, Rate R, C.P.U.C.A. No. 2505 (Docket No. 26-01-02).Wed, 01 Jul 2026 12:00:00 +0000f77de3b65b31c25e https://utilityratecalc.com/connecticut/eversource-ct/Generation service charge (Standard Service): 12.791¢ per kWh to 11.787¢ per kWh, from July 1, 2026. Eversource (Connecticut), Rate 1 (Residential Electric Service). Source: CL&P Standard Service Total Generation, January 2026 through December 2026 (Rate 1 and 5).Wed, 01 Jul 2026 12:00:00 +0000fae8aad95b72c31f https://utilityratecalc.com/connecticut/eversource-ct/Federally mandated congestion charge, generation part: −0.15¢ per kWh to −0.21¢ per kWh, from July 1, 2026. Eversource (Connecticut), Rate 1 (Residential Electric Service). Source: CL&P Standard Service Total Generation, January 2026 through December 2026 (Rate 1 and 5).Wed, 01 Jul 2026 12:00:00 +0000b1e7a82d1a223f62 https://utilityratecalc.com/connecticut/united-illuminating/Transmission charge: 4.3359¢ per kWh to 4.8722¢ per kWh, from May 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective May 1, 2026, Rate R, C.P.U.C.A. No. 2486 (Docket No. 26-01-04).Fri, 01 May 2026 12:00:00 +0000b0cd7d7d9f4467af https://utilityratecalc.com/connecticut/united-illuminating/Combined public benefits charge: 2.7213¢ per kWh to 1.5131¢ per kWh, from May 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective May 1, 2026, Rate R, C.P.U.C.A. No. 2486 (Docket No. 26-01-04).Fri, 01 May 2026 12:00:00 +0000a450423fa198e4b8 https://utilityratecalc.com/connecticut/united-illuminating/Non-bypassable FMCC (four parts): 1.3804¢ per kWh to −2.8278¢ per kWh, from May 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective May 1, 2026, Rate R, C.P.U.C.A. No. 2486 (Docket No. 26-01-04).Fri, 01 May 2026 12:00:00 +0000ddc0d1173dcfaa79 https://utilityratecalc.com/connecticut/united-illuminating/Revenue decoupling adjustment (Rider DR): −0.2161¢ per kWh to −0.3178¢ per kWh, from May 1, 2026. United Illuminating (UI), Rate R (Residential Rate R). Source: UI Schedule of Rates and Riders effective May 1, 2026, Rider DR, C.P.U.C.A. No. 2485 (Docket No. 26-01-04).Fri, 01 May 2026 12:00:00 +0000954b91d61d7602de