WIEB Webinar: GHG Accounting and Reporting in the Western States

On Monday, December 16, 2025, the Western Interstate Energy Board (WIEB) hosted a webinar where they explored GHG accounting and reporting across the Western Interconnection. This webinar was part one of a two-part series designed to enhance collaboration and understanding of GHG accounting and reporting principles, requirements, voluntary programs, market mechanisms, and regional collaboration. The webinar series is offered through WIEB’s Reserve Expenditure Program.

Agenda:

  1. Air Quality Regulation and Coordination in the Western States
    Rhonda Payne, Program Manager, Western Regional Air Partnership
  2. GHG Accounting and Reporting in EDAM
    Anja Gilbert, Lead Policy Developer, California Independent System Operator
  3. GHG Accounting and Reporting in Markets+
    Gentry Crowson, Lead Market Design Engineer, Southwest Power Pool
  4. Consequential Impacts of Voluntary Clean Energy Procurement
    Arne Olson, Senior Partner, Energy+Environmental Economics

 

Slides:

 

Webinar: