In how many nuclear power projects of Washington Nuclear Project  the Energy Northwest started construction?
WNP-1 and WNP-4 Washington Nuclear Project Nos. 1 and 4, abbreviated as WNP-1 and WNP-4 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.
Northwest, Washington, D.C. Northwest (NW or N.W.) is the northwestern quadrant of Washington, D.C., the capital of the United States, and is located north of the National Mall and west of North Capitol Street. It is the largest of the four quadrants of the city (NW, NE, SW and SE), and it includes the central business district, the Federal Triangle, and the museums along the northern side of the National Mall, as well as such neighborhoods as West End, Petworth, Dupont Circle, LeDroit Park, Georgetown, Adams Morgan, Embassy Row, Glover Park, Tenleytown, Foggy Bottom, Cleveland Park, Columbia Heights, Mount Pleasant, the Palisades, Shepherd Park, Crestwood, Bloomingdale, Takoma, Chevy Chase, and Friendship Heights.