Zion Nuclear Power Station

Zion Nuclear Power Station
Country	United States
Location	Zion, Lake County, Illinois
Coordinates	42°26′46″N 87°48′10″W / 42.44611°N 87.80278°W / 42.44611; -87.80278
Status	Decommissioned
Construction began	December 1, 1968
Commission date	Unit 1: December 31, 1973 Unit 2: September 4, 1974
Decommission date	February 13, 1998[1]
Owner(s)	Constellation Energy
Operator(s)	Constellation Energy
Nuclear power station
Reactor type	PWR
Reactor supplier	Westinghouse
Cooling source	Lake Michigan
Thermal capacity	2 × 3250 MWth (decommissioned)
Power generation
Make and model	Westinghouse 4-loop
Units decommissioned	2 × 1040 MW
Capacity factor	58.3% (lifetime)
External links
Website	Zion Station
Commons	Related media on Commons
[edit on Wikidata]

Zion Nuclear Power Station was the third dual-reactor nuclear power plant in the Commonwealth Edison (ComEd) network and served Chicago and the northern quarter of Illinois. The plant was built in 1973, and the first unit started producing power in December 1973. The second unit came online in September 1974. This power generating station is located on 257 acres (104 ha)^[2] of Lake Michigan shoreline, in the city of Zion, Lake County, Illinois. It is approximately 40 direct-line miles north of Chicago, Illinois and 42 miles (68 km) south of Milwaukee, Wisconsin.

The reactors were commissioned in respectively 1973 and 1974, and decommissioned between 1998 and 2020. The power plant was the tallest structure in Lake County.^[2]