As shown in US Combustion Turbine Market curve above, the years immediately following the passage the FUA and PURPA saw little new domestic business for gas turbines as much legal wrangling was taken place around the country. In fact, 1982 was probably the worst year ever in terms of orders placed for large gas turbines in the US. The prototype W501D5 was sold to Gulf States Utilities in 1981 and two other W501D5 "EconoPacs" were sold to Puget Sound Power & Light Co. Dow Chemical, whose expanding on-site power industrial generation facilities in Texas and Louisiana were not affected by the new laws, purchased several units in 1980/’81. That was about it for new unit sales for Westinghouse CTSD until 1983.