Science & Technology
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National Grid Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Pacific Gas & Electric Company Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Philadelphia Gas Works Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Spire Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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UGI Utilities, Inc. Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Eversource Gas of Massachusetts Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Vectren Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Dominion Energy of Ohio Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Metropolitan Utilities District of Omaha Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Atmos Energy Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Elizabethtown Gas Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Knoxville Utilities Board Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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Black Hills Energy Methane Challenge Partner Profile
Partner profile that provides an overview of the company and summary information about its involvement in EPA's voluntary methane programs.
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2005 v4.2 Technical Support Document
Technical Support Document for the Final Transport Rule describes how updated 2005 NEI, version 2 emissions and were processed for air quality modeling in support of the Cross-state Air Pollution Rule (CSAPR).
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2005 v4.3 Technical Support Document
Emissions Modeling for the Final Mercury and Air Toxics Standards Technical Support Document describes how updated 2005 NEI, version 2 emissions were processed for air quality modeling in support of the final Mercury and Air Toxics Standards (MATS).
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2007 Version 5.0 Technical Support Document
Preparation of Emissions Inventories for the Version 5.0, 2007 Emissions Modeling Platform describes how emissions based on the 2008 NEI, version 2 and were processed to represent the year 2007 in support of air quality modeling of the PM NAAQS.
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2011 Version 6.1 Technical Support Document
This TSD describes how the emission inventories were prepared for air quality modeling for the years 2011, 2018, and 2025 using the 2011, version 6.1 emissions modeling platform, which is based on the 2011 National Emissions Inventory, Version 1.
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2005 v4.1 Technical Support Document
Preparation of Emission Inventories for the Version 4.1, 2005-based Platform describes how emissions from the 2005 NEI, version 2 and were processed for air quality modeling in support of the Boiler MACT and the Mercury and Air Toxics Standards.
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2011 Version 6.0 Technical Support Document
This TSD describes how the emission inventories were prepared for air quality modeling for the years 2011, 2018, and 2025 using the 2011, version 6.0 emissions modeling platform, which is based on the 2011 National Emissions Inventory, Version 1
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2022v2 Emissions Modeling Platform Technical Support Document
This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2022.