• Updated

Peak power prices across the West picked up between $4 and as much as $18.25 in trading this week, a portion of which can be attributed to greater California demand and extreme heat across the Southwest.

There was “some price volatility” associated with a series of Southern California earthquakes and aftershocks that occurred over the Fourth of July weekend, the U.S. Energy Information Administration said, but Southern California gas transmission and distribution systems were largely unaffected.

After pausing operation for its 24th refueling, Energy Northwest’s Columbia Generating Station nuclear plant began ramping up again in the early morning hours of June 21.