Northwest Power and Conservation Council, Nov. 18, 2016, by John Harrison.
http://www.nwcouncil.org/news/blog/energy-efficiency-2015-survey-results/

"Based on the results of a new regional survey, the Council reported this month that the Pacific Northwest has reduced demand for electricity by 1,739 average megawatts over the last six years — enough saved electricity to meet the annual power demand of 1.25 million homes and avoid the need to build four new average-size natural gas-fired power plants."