Learn the Issues
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Join the Green Power Partnership
The U.S. EPA's Green Power Partnership is a voluntary program designed to reduce the environmental impact of electricity generation by promoting renewable energy. Learn more about becoming a Green Power Partner, including recognition opportunities.
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GPP Webinar: Smart Roofs: Portfolio-Based Roof Asset and Energy Management
Green Power Partnership webinar demonstrates through a GSA case study on ways to turn your roofs from a liability into a sustainable asset.
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What Is Green Power?
Green power is a subset of renewable energy. It represents those renewable energy resources and technologies that provide the greatest environmental benefit.
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Leadership and Access
This page provides some guidance around how to make a difference through renewable electricity use.
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2023 Workshop Registration and Logistics
Event logistics information including hotel and registration for the 2023 Workshop on SF6 Emission Reductions and Alternatives.
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Annual EPS Partnership Reports
Annual reports for the Electric Power Systems Partnership detailing accomplishments, emission reductions summary, upcoming events, new partners, and SF6 best practices.
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Methods for Calculating CHP Efficiency
Understand the two methodologies for calculating CHP efficiency: total system efficiency and effective electrical efficiency.
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Analysis of the Proposed Greenhouse Gas Standards and Guidelines
IPM analyses of the Proposed NSPS and Existing Source Rules
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Results using Post-IRA 2022 Reference Case
Download EPA's IPM v6 including documentation, overview, System Summary Report, .DAT, .RPE, .RPT files, Gas Report, State Level Emissions, Generation and Heat Input Summary.
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Integrated Planning Model (IPM) Results Viewer
This IPM Results Viewer is an Excel spreadsheet tool to compare different IPM runs in conjunction with historic data.
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Results using EPA’s Power Sector Modeling Platform v6 - Summer 2021 Reference Case
Download EPA's IPM v6 including documentation, overview, System Summary Report, .DAT, .RPE, .RPT files, Gas Report, State Level Emissions, Generation and Heat Input Summary.
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Analysis of the Final Greenhouse Gas Standards and Guidelines
IPM analyses of the Proposed NSPS and Existing Source Rules
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Previous Versions of EPA Platforms Using IPM
Find previous versions of EPA's Integrated Planning Model (IPM) including versions 5.16; 5.15; 5.14; and 5.13.
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Fundamentals of Successful Monitoring, Reporting, and Verification under a Cap-and-Trade Program
Find an article written by EPA staff describing the fundamental elements of cap-and-trade programs.
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The U.S. Acid Rain Program: Key Insights from the Design, Operation, and Assessment of a Cap-and-Trade Program
Find an article written by EPA staff on how a well-designed cap-and-trade program can be cost-effective, flexible, and easy to implement with clear benefits that can be sustained into the future.
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Tools of the Trade: A Guide To Designing and Operating a Cap and Trade Program For Pollution Control
This guidebook is intended as a reference for policy-makers and regulators considering cap emissions trading as a policy tool to control pollution.
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Cross-State Air Pollution Rule (CSAPR) Fact Sheets
EPA has developed a series of fact sheets, in the format of questions and answers, to assist states in the development of their CSAPR SIPs
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Cross-State Air Pollution Rule - Resources For Implementation
Information for states and the regulated community for implementing the Cross-State Air Pollution Rule
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What is Acid Rain?
Introduction to acid rain including its causes and the different types of acid rain.
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2010 SO2 Allowance Auction
Learn the results of EPA's 2010 Acid Rain Program sulfur dioxide (SO2) allowance auction results.