EPS Partnership Accomplishments

Since 1999, members of the U.S. electric power industry and the EPA have been working together to identify and implement opportunities to reduce SF₆ emissions. Partners voluntarily report their SF₆ emissions and nameplate capacity estimates to EPA.

Note: Under EPA’s Greenhouse Gas Reporting Program, Partners with a total nameplate capacity exceeding 17,820 pounds must report emissions and nameplate capacity under Subpart DD - Use of Electric Transmission and Distribution Equipment.

The partnership’s average annual SF₆ emission rate, the ratio of SF₆ emissions relative to total SF₆ nameplate capacity (i.e., the total quantity of SF₆ contained in electrical equipment), is a benchmark metric by which achievements of the partnership are tracked. As illustrated in the figure below, the average annual SF₆ emission rate of Partners has decreased drastically since 1999.

Between 1999 and 2022, Partners have collectively decreased SF₆ emissions by 86% and reduced emissions rate (emissions/nameplate capacity) by 93%.