The Cost of Climate Pollution

Washington Utilities and Transportation Commission Adopts Updated Social Costs of Greenhouse Gases

uWashington Electric Power Sector September 2020

• Application

  Utility resource planning

• Date

  September 2020

• Details

  In September 2019, the UTC adopted social cost of greenhouse gases estimates to comply with Washington State's May 2019 clean energy legislation.

• SCC Value(s)

  $75/metric ton (2019$) for year 2020 emissions, based on IWG 2016 SCC at 2.5% discount rate

• Reference

  Docket No. U-190730, Order 01

• Legal Authority

  RCW 80.28.405 and RCW 80.28.395 

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