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Prices here are state averages across all utilities and rate plans, from the U.S. Energy Information Administration — not the rate on any one bill. Generation-mix figures are reported annually, not real time.

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Hydro Power in Connecticut

Net generation and share of the state power mix, 2025 — U.S. Energy Information Administration.

Hydro generation (2025)
342 thousand MWh
Share of state power mix
0.79%
National rank (hydro output)
#41
U.S. average share
5.58%

Hydro share of Connecticut's power mix over time

2001: 0.94%2025: 0.79%

Year by year

YearHydro (thousand MWh)Share of state mix
20253420.79%
20243690.82%
20234651.14%
20223120.73%
20214781.08%
20203260.79%
20194281.07%
20185551.41%
20173320.96%
20162240.61%
20153020.81%
20144341.29%
20134021.13%
20123120.86%
20115671.68%
20103911.17%
20095101.63%
20085561.83%
20073631.1%
20065441.57%
20054781.43%
20044631.42%
20035641.91%
20023351.07%
20012860.94%

Source: U.S. Energy Information Administration, electric power operational data (net generation by state and energy source). "Share of state mix" is this fuel's net generation as a percentage of all in-state net generation.

Hydro Power in Connecticut | EnergyAtlasUSA