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

  • 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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