John Marshall Harlan II,
Wisconsin v. Federal Power Commission…
“ To whatever extent the matter of costs may be a requisite element in rate regulation, we have no indication that the area method will fall short of statutory or constitutional standards. The Commission has stated in its opinion in this proceeding that the goal is to have rates based on the 'reasonable financial requirements of the industry' in each production area, 24 F.P.C., at 547, and we were advised at oral argument that composite cost-of-service data will be considered in the area rate proceedings. ”
