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Electricity In Connecticut

  • Population3,565,287
  • Total Consumption27,508,240 MWh / 7.72 MWh per capita
  • CO2 Equivalent Emissions7,535,185,593 kg
  • Total Production42,442,764 MWh / 11.9 MWh per capita
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Residential Electricity Bills & Rates in Connecticut

Connecticut residential electric rates are highest in January and the highest average bill is in January.

Historical Electric Rates:

Price Per kWHAverage Bill$0.240/kWh$0.193/kWh$229.98/mo.$111.74/mo.
50th22.13¢Average residential price per kWh in the state of Connecticut
51st$159.67Average residential monthly electricity bill for Connecticut Residents

Energy Profile of Connecticut

MonthlyWe report production data as it is published. Due to reporting methods and timing, data from 2021 and 2020 may be incomplete. Data is released in full each fall for the previous calendar year. For clarification on any data points, please contact our team.
AnnualAnnual data for 2020 will be finalized in the fall of 2021. Until that time, some data may be incomplete. Data for 2021 is a summation of all information released to date, which may only represent a portion of the actual production that has occurred. For clarification on any data points, please contact our team.

Connecticut's Electricity Prices and Usage

The average residential electricity rate in Connecticut in 2021 is 22.13 cents per kilowatt hour, which is 66.04% above the United States average rate of 13.33 cents. Connecticut is the 50th best priced state in the US based on average electric rate. The state has a deregulated electricity market, meaning consumers may choose from many electricity providers rather than be forced to buy electricity from a single option based on their location. Renewable fuel usage for electricity production has decreased by 2.74% in the last year in Connecticut. The state produces 42,442,764.22 megawatt hours from its power generating plants, which is the 33rd highest total production for a state in the country. Producing 11.9 megawatt hours per person living in the state, Connecticut ranks as the 30th largest per capita producer of electricity in the nation. Consumers in the state deal with 0.39 electrical outages on average a year, with outages lasting about 31.11 minutes. The national averages for these data points are 1.13 outages and 127.16 minutes.

Residential Electricity Providers in Connecticut

ProviderArrow UpArrow pointing upwards.Residential Rate (¢)Arrow UpArrow pointing upwards.Residential Average Bill ($)Arrow UpArrow pointing upwards.Residential Sales (MWh)Arrow DownBlue arrow pointing down.Residential Revenues ($)Arrow UpArrow pointing upwards.State Production (MWh)Arrow UpArrow pointing upwards.State Emissions (KG)Arrow UpArrow pointing upwards.
Eversource Energy21.53155.288,173,5151,759,807,961No DataIcon representing missing value.2,787,390,340.96
United Illuminating25.601451,600,881409,901,80862,9031,153,255,793.1
Ambit Energy10.0062.55361,08536,115,200No DataIcon representing missing value.122,882,881.35
Wallingford Electric12.77107.46218,18127,868,877No DataIcon representing missing value.153,984,836.35
Norwich Public Utilities19.89113.66122,76624,416,1004,508162,705,023.63
Groton Utilities15.90115.08106,01916,855,490No DataIcon representing missing value.124,657,091.45
South Norwalk Electric and Water15.3393.2541,1916,315,700No DataIcon representing missing value.24,101,262.18
Norwalk Third Taxing District16.70124.1226,6094,443,000No DataIcon representing missing value.16,386,995.6
Bozrah Light and Power18.34142.9222,5044,126,400No DataIcon representing missing value.58,145,716
Jewett City Electric17.84108.2313,9602,489,800No DataIcon representing missing value.6,201,654.55
10 providers total

Power Plants in Connecticut

PlantArrow UpArrow pointing upwards.City/CountyArrow UpArrow pointing upwards.Primary Fuel TypeArrow UpArrow pointing upwards.Production (MWh)Arrow DownBlue arrow pointing down.Emission (KG)Arrow UpArrow pointing upwards.Emissions/MWh (KG/MWh)Arrow UpArrow pointing upwards.Toxic Chemical ReleaseArrow UpArrow pointing upwards.Closing DateArrow UpArrow pointing upwards.
MillstoneMassachusetts Municipal Wholesale Electric Company (2.40%)Green Mountain Power (0.86%)Dominion Energy (96.73%)
Waterford CDP Nuclear 16,694,457273,927,360.0716.41No DataIcon representing missing value.No DataIcon representing missing value.
CPV Towantic Energy CenterCompetitive Power Ventures (100.00%)
New Haven County Natural Gas 5,526,781.011,931,284,592.27349.44YesNo DataIcon representing missing value.
Lake Road Generating PlantDynegy Energy Services (100.00%)
Windham County Natural Gas 5,459,8252,140,195,421.98391.99No DataIcon representing missing value.No DataIcon representing missing value.
Bridgeport StationPSEG (100.00%)
Bridgeport Natural Gas 3,806,9651,565,727,963.65411.28YesNo DataIcon representing missing value.
Milford Power ProjectDynegy Energy Services (100.00%)
Milford Natural Gas 3,345,1381,305,186,222.48390.17No DataIcon representing missing value.No DataIcon representing missing value.
Bridgeport Energy ProjectEmera (100.00%)
Bridgeport Natural Gas 2,165,785817,533,357.9377.48No DataIcon representing missing value.No DataIcon representing missing value.
Kleen Energy Systems ProjectAres Management (19.00%)
Middletown Natural Gas 1,767,648675,909,222.9382.38YesNo DataIcon representing missing value.
Wheelabrator BridgeportWheelabrator Environmental Systems (100.00%)
Bridgeport Non-biogenic Municipal Solid Waste 473,349703,556,634.81,486.34No DataIcon representing missing value.No DataIcon representing missing value.
MiddletownMiddletown Power LLC (100.00%)
Middletown Natural Gas 294,841191,128,014.23648.24YesNo DataIcon representing missing value.
CT Resource Rec Authority FacilityMaterials Innovation Recycling Authority (100.00%)
Hartford Non-biogenic Municipal Solid Waste 257,505545,069,369.522,116.73No DataIcon representing missing value.No DataIcon representing missing value.
115 power plants total

Quick Facts

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Connecticut ranks 28th in the United States for solar electricity production per capita, averaging 0.07 megawatt hours produced per person each year.

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Connecticut's ability to produce 297,456.32 megawatts of electricity from the use of hydroelectric power sources, has given rise to its ranking of 40th highest hydroelectric energy producer in the nation.

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The 41,152,836.67 megawatt hours of electricity generated by non-renewable energy puts Connecticut at 26th worst in the US in non-renewable energy generation.

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Connecticut is the 29th largest state by population in the US, with 3,565,287 citizens calling the state home.

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Wind generates 13,468 megawatt hours of electricity in Connecticut. This equals roughly 0 megawatt hours per person in Connecticut being produced from wind power, giving the state a rank of 41st highest in the United States in that category.

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Eversource Energy is the largest electricity supplier in the state of Connecticut when calculated by megawatt hours sold.

CountyArrow UpArrow pointing upwards.PopulationArrow UpArrow pointing upwards.ProvidersArrow UpArrow pointing upwards.PlantsArrow UpArrow pointing upwards.Residential Rate (¢)Arrow UpArrow pointing upwards.Residential Avg. Electric BillArrow UpArrow pointing upwards.
Fairfield County943,33291717.83$116.03/mo
Hartford County891,72052015.77$108.92/mo
Litchfield County180,33341015.77$108.92/mo
Middlesex County162,4364715.77$108.92/mo
New Haven County854,75781517.48$117.57/mo
New London County265,20683417.22$118.81/mo
Tolland County150,7214215.77$108.92/mo
Windham County116,78241015.77$108.91/mo

Power Plant Fuel Types, Emissions & Pollution Factors

The state of Connecticut’s top fuel type consumed for electricity generation is Natural Gas. They produce 23,585,097.37 megawatt hours, or 55.57% of the total production in the state, from this fuel source. Taken together with Nuclear (39.33%) and Non-biogenic Municipal Solid Waste (1.36%), these three fuel sources make up 96.27% electricity generation in the state. Electricity use in the state has byproducts of 7,535,185,592.88 kilograms of CO2 emissions. This is the 41st most of any state in the United States. This total also equals a ranking of 48th worst in the country for emissions per resident from electricity consumption. Connecticut has 115 power generation plants within its borders. This is the 28th highest number of plants within a state and the 22nd highest number of plants per citizen in the United States.

NATURAL GAS
Natural Gas
Natural Gas
Natural Gas
Natural Gas
Natural Gas
Natural Gas
55.57%
NUCLEAR
Nuclear
Nuclear
Nuclear
Nuclear
39.33%
NON-BIOGENIC MUNICIPAL SOLID WASTE
Non-biogenic Municipal Solid Waste
1.36%
BIOGENIC MUNICIPAL SOLID WASTE Renewable, RefreshableIcon representing renewability.
Biogenic Municipal Solid Waste
1.12%
CONVENTIONAL HYDROELECTRIC Renewable, RefreshableIcon representing renewability.
Conventional Hydroelectric
0.70%
OTHER
Other
1.92%

Connecticut Net Metering

There are 10 companies in Connecticut providing electricity. Of those 10,6 of them offer some type of net metering option for their customers, making solar panels and alternative electric sources more economically viable. Regulations put in place at the state level are some of the best for consumers interested in installing solar or other alternative electricity generation sources.

Energy Loss

Connecticut has 9 providers who are reporting energy loss during transmission activities. The average energy loss amount for these 9 companies is 1.70%. For comparison, the countrywide average electricity loss is 2.72%. Connecticut has a rank of 48th worst in the country for energy loss.

Solar Taxes And Rebates

When it comes to stimulating solar panel installs at private residences, one of the best uses of government resources is tax breaks and rebates for solar installs. Connecticut currently offers no state tax credit to consumers who install solar at their place of residence. Residents in the state enjoy rebates for solar panel installs of over $500. This is the highest amount we’ve seen in the US. Fortunately, Connecticut offers a 100% tax exemption to residents who wish to install solar panels. Fortunately, residents in the state have a 100% sales tax exemption for the install of private solar panels. Can’t beat that!

State Level Initiatives

Customers who are seeking electricity options that generated by renewable sources will benefit from statewide initiatives that encourage green energy usage. Many states require green fuel types to be a portion of the fuel used for electricity generation. These stipulations are referred to as Renewable Portfolio Standards (RPS). Electric providers in Connecticut are required to produce at least 25% of their output using renewable fuel types. Also, low income solar programs are another way a state can encourage renewable fuel types and the state of Connecticut is home to one such program.

FAQ: Common Questions About Energy in Connecticut

Does Connecticut have a deregulated electricity market?

Connecticut has a deregulated electricity market, meaning citizens in the state can often choose from an abundance of electricity providers for their electricity needs.

Where does Connecticut get its electricity?

Connecticut’s electricity is generated using mainly Natural Gas, which makes up 55.57% of the fuel used in the state. The second and third most used fuels are Nuclear and Non-biogenic Municipal Solid Waste, which make up 39.33% and 1.36% of total generation respectively.

How much does electricity cost in Connecticut?

The average price per kilowatt hour of electricity in Connecticut in 2021 is 22.13 cents.

What is the cheapest electricity company in Connecticut?

Residential Rate RankArrow UpArrow pointing upwards.ProviderArrow UpArrow pointing upwards.Residential Rate (¢)Arrow UpArrow pointing upwards.State CustomersArrow UpArrow pointing upwards.
1Ambit Energy10.0052,457
2Wallingford Electric12.7725,316
3South Norwalk Electric and Water15.336,973
4Groton Utilities15.9013,837
5Norwalk Third Taxing District16.703,864
6Jewett City Electric17.842,213
7Bozrah Light and Power18.342,781
8Norwich Public Utilities19.8920,456
9Eversource Energy21.531,017,232
10United Illuminating25.60251,071

What electricity companies are in Connecticut?

State Customers RankArrow UpArrow pointing upwards.ProviderArrow UpArrow pointing upwards.State CustomersArrow DownBlue arrow pointing down.
1Eversource Energy1,017,232
2United Illuminating251,071
3Ambit Energy52,457
4Wallingford Electric25,316
5Norwich Public Utilities20,456
6Groton Utilities13,837
7South Norwalk Electric and Water6,973
8Norwalk Third Taxing District3,864
9Bozrah Light and Power2,781
10Jewett City Electric2,213

How many electric companies offer service in Connecticut?

There are 10 electricity suppliers operating in Connecticut.

How many power plants are located within Connecticut?

There are 115 power plants located in Connecticut

Which electricity company is the largest supplier in Connecticut?

By total customer count, Eversource Energy is the largest electricity provider in Connecticut.

What is the average electric bill in Connecticut?

In 2021, Connecticut has an average electric bill of $160, while the countrywide average is $120.

Last Reviewed By: Alex Zdanov
Published: 2021-03-16Last Updated: 2021-10-14