The BonnevillePower Administration agreed to amend its power purchase agreementwith Alcoa Inc., amove that will benefit Alcoa's Intalco Works aluminum smelter in Ferndale, Wash.

Alcoa has a 10-yearcontract with BPA that will expire September 2022. The amendment tothe PPA provides additional access to market power during the July 1, 2016, toFeb. 14, 2018, period, according to a May 2 release.

The revised PPA will prevent curtailment of operations atthe smelter, which has a capacity of 279,000 metric tons per year, at the endof the second quarter.