An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Greenhouse Gas Reporting Program (GHGRP)

GHGRP 2014: Electrical Equipment Production and Use

power lines icon This source category comprises electrical transmission and distribution systems and facilities that manufacture or refurbish electrical equipment.

The electrical transmission and distribution subsector consists of all electric transmission and distribution equipment insulated with or containing sulfur hexafluoride (SF6) or perfluorocarbons (PFCs) within an electric power system. This equipment includes but is not limited to gas-insulated substations; circuit breakers; switchgear, including closed-pressure and hermetically sealed-pressure switchgear; gas-insulated lines containing SF6 or PFCs; and gas containers such as pressurized cylinders, gas carts, electric power transformers, and other containers of SF6 or PFCs. Emissions are from leakage of fluorinated greenhouse gases during the servicing and use of the equipment.

The electrical transmission and distribution subsector consists of all electric transmission and distribution equipment insulated with or containing sulfur hexafluoride (SF6) or perfluorocarbons (PFCs) within an electric power system. This equipment includes but is not limited to gas-insulated substations; circuit breakers; switchgear, including closed-pressure and hermetically sealed-pressure switchgear; gas-insulated lines containing SF6 or PFCs; and gas containers such as pressurized cylinders, gas carts, electric power transformers, and other containers of SF6 or PFCs. Emissions are from leakage of fluorinated greenhouse gases during the servicing and use of the equipment.

Production and Use of Electrical Equipment — Greenhouse Gas Emissions Reported to the GHGRP
(all emissions values presented in million metric tons CO2e)
  2011 2012 2013 2014
Number of facilities:
• Electrical Transmission and Distribution Equipment Use 123 123 121 116
• Electrical Equipment Manufacturing 6 6 6 7
Total emissions (CO2e):
• Electrical Transmission and Distribution Equipment Use 3.9 3.2 3.3 3.1
• Electrical Equipment Manufacturing 0.3 0.2 0.2 0.2
Emissions by greenhouse gas (CO2e)
• Carbon dioxide (CO2): ** ** ** **
• Methane (CH4): ** ** ** **
• Nitrous oxide (N2O): ** ** ** **
• Perfluorocarbons (PFCs): ** ** ** **
• Sulfur hexafluoride (SF6): 4.3 3.4 3.5 3.3
  • Totals may not equal sum of individual GHGs due to independent rounding.
  • ** Total reported emissions are less than 0.05 million metric tons CO2e.

Top of Page