Discussions were initiated with the utility, Pennsylvania Power and Light Company (PP&L). PP&L was open to an interruptible tariff due to the projected shortage of power generation on their system and the basic requirements of an interruptible contract that would benefit both parties was formed. Three main concerns of the Whitehall plant were: 1) A reduction of power costs; 2) Guaranteed power quality due to frequent fluctuations caused by large demand loads, such as grinding mills; and 3) The ability to cost-effectively run milling loads during on-peak periods. The main concern for PP&L was a reduction of power draw during emergency grid conditions. The new LP-5 tariff was submitted to the Pennsylvania Utility Commission (PUC) in June 1992 and approved August 1, 1992.