PHI Corporate Greenhouse Gas Inventory


As one of the largest energy delivery companies in the mid-Atlantic region of the U.S., PHI is subject to annual greenhouse gas (GHG) emissions reporting obligations by the Environmental Protection Agency as well as state-level GHG reporting requirements. Since 2002, we have reported direct (Scope 1) and indirect (Scope 2) GHG emissions data as well as reduction and mitigation initiatives through the Voluntary Reporting of Greenhouse Gases Program administered by the U.S. Department of Energy's Energy Information Agency (EIA). We have been recognized by the EIA for demonstrating commitment to voluntary environmental protection through actions taken to reduce or capture greenhouse emissions.

In addition, we voluntarily report our Scope 1, 2 and 3 greenhouse gas emissions and reduction activities as part of the Carbon Disclosure Project's annual Investor Information Questionnaire. Scope 3 emissions include indirect GHG emissions from sources not owned or directly controlled by PHI, but related to our activities. For example, employee travel and commuting is a Scope 3 GHG emission.

In 2012, we focused on our carbon footprint by conducting a thorough and complete emissions inventory using tools developed by the World Resources Institute and the World Business Council for Sustainable Development to identify sources of greenhouse gas emissions from our operations, and to track progress in reducing emissions over time. We also obtained independent third-party verification of our corporate GHG emissions inventory. This independent verification improved overall confidence in our inventory. In addition, through this process, we identified areas for improvement, including expansion to smaller sources such as the use of refrigerants and small combustion sources.

Our GHG emission inventory includes all material GHG emission sources as shown in this table and chart. In 2012, our GHG emissions totaled approximately 1.3 million metric tons of CO2 equivalents (CO2e). This is 58 percent lower than our emissions in 2010. Our direct GHG emissions (Scope 1) equaled 279,837 metric tons of CO2e. This represents a 59 percent reduction in our direct emissions from 2010 levels. These reductions are a primary result of our decreasing SF6 fugitive emissions.

In 2012, a little more than half of our direct GHG emissions (Scope 1) came from fugitive SF6 emissions from electrical equipment along our transmission and distribution system. In June 2012, we shut down our Pepco Energy Services' Bennning and Buzzard peaking power plants, which led to significant reductions in our corporate GHG inventory.

Emission Category

 (Scope 1)

PES Electric Generation

PHI Vehicle Fleet

Fugitive Emissions

-          SF6 from Electrical Equipment  

-          Methane leaks from Natural Gas Distribution

Indirect Emissions (Scope 2)

Purchased Electricity for PHI Office Buildings

Transmission and Distribution Line Losses

* Pepco Energy Services permanently closed its Benning and Buzzard generating stations in June 2012.