In pursuit of the Federal Geothermal Program objective to accelerate the commercialization of geothermal energy in an environmentally sound manner, the DOE issued a program opportunity notice (paN) on September 30, 1977, inviting organizations to submit proposals for the design, construction, and operation of a geothermal electric power plant. The pan specified that the power plant must (1) Use a liquid-dominated geothermal reservoir, and (2) be located in the United States. The objectives of the paN were chosen to provide the maximum stimulus to non-Federal Development of the widest spectrum of hydrothermal resources that can be Used for electricity production