WNP-3 and WNP-5

WNP-3/5
View of the plant in 2006
Location of WNP-3 and WNP-5
Official name	Nuclear Project Nos. 3 and 5
Country	United States
Location	Near Elma, Grays Harbor County, Washington
Coordinates	46°57′35″N 123°28′11″W / 46.9598°N 123.4696°W / 46.9598; -123.4696Coordinates: 46°57′35″N 123°28′11″W / 46.9598°N 123.4696°W / 46.9598; -123.4696
Status	canceled
Construction began	1977
Commission date	N/A
Owner(s)	Washington Public Power Supply System
Nuclear power station
Reactor type	PWR System 80
Reactor supplier	Combustion Engineering
Power generation
Units planned	2 × 1240 MW
Nameplate capacity	2480 MW

Washington Nuclear Project Nos. 3 and 5, abbreviated as WNP-3 and WNP-5 (collectively known as the Satsop Nuclear Power Plant) were two of the five nuclear power plants on which construction was started by the Washington Public Power Supply System (WPPSS) in order to meet projected electricity demand in the Pacific Northwest. WNP-1, WNP-2 and WNP-3 were part of the original 1968 plan, with WNP-4 (a twin to WNP-1 and located at the same site) and WNP-5 (a twin to WNP-3, in similar fashion) added in the early 1970s.

WNP-3 and WNP-5 are located on 1,600 acres (650 ha) on the Satsop Site near Elma in Grays Harbor County, Washington (N46° 57.536' W123° 28.163'). Today the site hosts the Satsop Development Park and the Grays Harbor Energy Center.

WPPSS applied for a construction and operation permit in 1973, and both WNP-3 and WNP-5 started construction in 1977. Cost overruns led to major management changes at all five WPPSS nuclear plants in 1980. Bechtel was appointed the construction manager for WNP-1, 2 and 4 at Hanford and EBASCO brought in a new management team for WNP-3 and 5 at Elma.

WNP-3 was WPPSS's showcase project and construction advanced at an estimated rate of 2% per month under the leadership of the new management team brought in by EBASCO. Washington state voters put Initiative 394 (I-394) on the ballot for November 1981, which asked in its title "Shall public agencies obtain voter approval prior to issuing bonds for the construction or acquisition of major public energy projects?" I-394 was aimed directly at the five nuclear projects being built by WPPSS, with the Statement For, written by supporters, citing the rise in the estimated construction budget for the five plants, which had grown from an initial estimate of US$4.1 billion to US$24 billion. Despite being outspent by a margin of nearly seven-to-one, I-394 passed overwhelmingly, meaning that WPPSS would have to submit future bond issues to the public for a vote. Prior to I-394, WPPSS had the authority to issue bonds without voter consent as a municipal corporation.

Just a few years later, with the failure of WPPSS to sell nearly US$961,000,000 (equivalent to $2,384,940,000 in 2016) in bonds to complete the project, WNP-3 was placed in an extended construction delay in July 1983 while nearly 76 percent complete. Construction on WNP-5 was terminated in January 1982 while only 16 percent complete. Of the original five proposed nuclear units, only WNP-2 was completed and put into operation.