Source: Oregon Department of Energy, 2009 data for Green Source and Clean Wind. WECC regional resource mix, EPA eGrid 2007 v1.1 for Western Regional Resource Mix. Data for PGE System Mix may differ from WECC regional resource mix; check PortlandGeneral.com for details. All percentages are approximate and may not add up to 100% due to rounding. “New” refers to power generated from facilities that became operational after July 1999. |