Prices rose last year for the first time since 2010, then dropped sharply thanks to factors including increased production capacity, the firm said.

With plans to add about 15 GW of resources by 2045, including about 3.7 GW of demand-side and distributed resources, Puget Sound Energy aims to scale up its VPP over time.

Electric generators are “more reliant than ever” on natural gas, and the National Association of Regulatory Utility Commissioners has launched a 15-month effort to improve coordination between the sectors.

The proposals focus on how organizations can cut their greenhouse gas emissions and reduce energy consumption.

U.S. sales of hybrid, plug-in hybrid and battery-electric vehicles reached 17.7% of new light-duty vehicle sales in the third quarter, according to the Energy Information Administration.