Electricity and gas rates : hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Seventh Congress, first session on S. 764, to direct the Federal Energy Regulatory Commission to impose just and reasonable load-differentiated demand rates or cost-of-service based rates on sales by public utilities of electric energy at wholesale in the western energy market, and for other purposes : S. 597, to provide for a comprehensive and balanced national energy policy, June 19, 2001.