Greenhouse Gas and Clean Energy Accounting Methodology Catalog
This study presents a catalog of Greenhouse Gas (GHG) and clean energy accounting methodologies in use across the Western U.S., inclusive of practices used under Renewable Portfolio Standards (RPS); energy supply mix disclosure programs; mandatory GHG reporting and reduction programs; and voluntary utility and end-use consumer reporting. This catalog aims to provide a representative, but not necessarily comprehensive, description of the GHG accounting practices in use today by utilities across the West, and is derived from a combination of detailed interviews with 15 participating utilities; program information provided by participating utilities; public documentation of required accounting practices under the various programs; and our own research.