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Data for 2010  |  Release Date: April 26, 2012  |  Next Release: February 2013  |   full report

Connecticut Nuclear Profile 2010 Connecticut profile

Connecticut total electric power industry, summer capacity and net generation, by energy source, 2010  
Primary energy source Summer capacity
(mw)
Share of State total
(percent)
Net generation
(thousand mwh)
Share of State total
(percent)
Nuclear 2,103 25.4 16,750 50.2
Coal 564 6.8 2,604 7.8
Hydro and Pumped Storage 151 1.8 400 1.2
Natural Gas 2,292 27.7 11,716 35.1
Other 1 27 0.3 730 2.2
Other Renewable1 159 1.9 740 2.2
Petroleum 2,989 36.1 409 1.2
Total 8,284 100.0 33,350 100.0
1Municipal Solid Waste net generation is allocated according to the biogenic and non-biogenic components of the fuel; however, all Municipal Solid Waste summer capacity is classified as Renewable.
Notes: Totals may not equal sum of components due to independent rounding.
Other: Blast furnace gas, propane gas, other manufactured and waste gases derived from fossil fuels, non-biogenic municipal solid waste, batteries, chemicals, hydrogen, pitch, purchased steam, sulfur, tire-derived fuel, and miscellaneous technologies.
Other Renewable: Wood, black liquor, other wood waste, biogenic municipal solid waste, landfill gas, sludge waste, agriculture byproducts, other biomass, geothermal, solar thermal, photovoltaic energy, and wind.
Sources: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report."

Connecticut nuclear power plants, summer capacity and net generation, 2010  
Plant name/total reactors Summer capacity
(mw)
Net generation
(thousand mwh)
Share of State nuclear
net generation (percent)
Owner
Millstone
Unit 2, Unit 3
2,103 16,750 100.0 Dominion Nuclear Conn Inc
1 Plant
2 Reactors
2,103 16,750 100.0  
Note: Totals may not equal sum of components due to independent rounding.
Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report."

Plants in State

Millstone Nuclear Plant 
Unit Summer capacity
(mw)
Net generation
(thousand mwh)
Summer cpacity factor (percent) Type Commercial operation date License expiration date
2 869 7,415 97.4 PWR 12/26/1975 7/31/2035
3 1,233 9,336 86.4 PWR 4/23/1986 11/25/2045
  2,103 16,750 90.4      
Data for 2010
PWR = Pressurized Light Water Reactor.
Note: Totals may not equal sum of components due to independent rounding.
Source: Form EIA-860, "Annual Electric Generator Report," and Form EIA-923, "Power Plant Operations Report."

Operator: Dominion Nuclear Connecticut

Location and Service Territory: The power plant is located on Millstone Point, a peninsula near Waterford, Connecticut. The 500-acre site was formerly a granite quarry.

Construction Cost: $8.845 billion (2007 USD)2

Reactor Descriptions: Millstone 2 and Millstone 3 are pressurized water reactors. Millstone 2 was supplied by Combustion Engineering. Millstone 3 is a Westinghouse four-loop reactor.

Cooling System: The Millstone plant draws water from Long Island Sound for its once-through cooling system.


2Nuclear Power Plant Construction Activity, DOE/EIA-0473(86), Energy Information Administration, 1986, pp 16-17, Table 5. Adjusted to 2007 Dollars using Bureau of Labor Statistics' Consumer Price Index.

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