How Much Does 500 kWh Cost in Connecticut?

This usage-based electricity page estimates the energy-only cost of 500 kWh in Connecticut using the latest statewide residential average rate.

Connecticut average rate
30.47 ¢/kWh
Estimated 500 kWh cost
$152.35
U.S. average cost
$95.20

Key metrics

MetricValue
Connecticut average rate30.47 ¢/kWh
Estimated 500 kWh cost$152.35
U.S. average cost$95.20

Compared to U.S. average

Connecticut (500 kWh)
$152.35
U.S. (500 kWh)
$95.20
Difference
+$57.15

500 kWh in Connecticut is more expensive by $57.15 compared to the U.S. average.

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Source & Method

Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Updated: March 2026. Estimates are energy-only and exclude delivery charges, taxes, and fixed utility fees. For how rates and estimates are defined, see the methodology hub.

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