Pennsylvania Builders Ass'n v. Pennsylvania Public Utility Commission

Opinion by

President Judge Crumlish,

The Pennsylvania Builders Association appeals a Pennsylvania Public Utility Commission order approving a tariff supplement filed by the Pennsylvania Power and Light Company (PP&L).1 We reverse.

On April 6,1978, PP&L filed a proposed tariff supplement, the effect of which was to establish mandatory building insulation standards as a pre-condition to the Utility’s providing electrical service to newly constructed buildings.2 The tariff supplement would *440impose specific insulation standards on all new buildings regardless of wbat energy source was being used for…