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Energy Innovation used the Energy Policy Simulator to determine that a specific combination of six policies could meet the Clean Power Plan's goal of reducing power sector CO2 emissions by 32 percent by 2030 while saving the U.S. economy nearly 40 billion dollars between 2016 and 2030. The recommended package focuses on improving coal plant efficiency, accelerating coal retirements, enhancing building and industrial energy efficiency, implementing a 25 percent national average renewable portfolio standard, and increasing transmission capacity. The report contrasts this approach with more expensive alternatives, such as those relying heavily on nuclear power or carbon capture and storage.

The analysis finds that California can reach a 50 percent renewable electricity mix by 2024 using existing technology. While increasing the Renewables Portfolio Standard to 50 percent would reduce greenhouse gas emissions by 22 percent without further grid investment, implementing advanced grid management tools like storage and demand response could increase that reduction to 27 percent and significantly decrease renewable energy curtailment.

The report analyzes the impact of raising California's Renewables Portfolio Standard (RPS) to 50 percent by 2024. It finds that while this transition reduces GHG emissions and production costs, it increases renewable curtailment, primarily driven by downward reserve and regional generation requirements. The study concludes that non-fossil flexibility—including electricity storage, advanced demand response, and allowing renewables to provide reserves—is significantly more effective at reducing curtailment and emissions than increasing the flexibility of natural gas power plants.

The report documents a significant decline in power plant-related health impacts and emissions in the U.S. and the RGGI region between 2004 and 2012, attributing these gains to stringent emission controls, the transition from coal to natural gas, and renewable energy policies.

The Sierra Club and Chesapeake Climate Action Network oppose Exelon's acquisition of Pepco Holdings, Inc., asserting that the proposed settlement is insufficient. They argue that Exelon's solar commitments are merely statutory obligations, its financial health is questionable, and the merger would conflict with Maryland's renewable energy goals. The brief claims that the acquisition offers negligible ratepayer savings while introducing substantial risks to the public interest.

A group of 53 Illinois scientists, engineers, economists, and health professionals argues that the state's clean energy progress has stalled due to policy flaws. They advocate for increasing the renewable energy target to 35% of electricity and energy efficiency investments capable of reducing demand by 20%, while calling for a market-based approach from the Illinois EPA to reduce carbon emissions.

The document details the use of the NREL Regional Energy Deployment System (ReEDS) model to evaluate three policy scenarios for Illinois: a 'No Policies' case, an 'Existing EEPS + Fixed RPS' case, and a 'Strengthened EEPS + RPS' case. It outlines specific adjustments made to EIA AEO 2014 cost and performance assumptions for various generating technologies, including wind, solar, nuclear, and carbon capture and storage, to better reflect project-specific data and recent studies. Additionally, it provides the calculation methods for energy efficiency costs and savings based on Illinois utility filings.

The document proposes replacing the Renewable Portfolio Standard (RPS) and the Efficiency Savings and Performance Incentive (ESPI) with a system-wide carbon intensity standard and per capita energy sales standards. It argues that these reforms will align utility incentives with state climate goals, encourage low-carbon grid flexibility, and remove the conservative goal-setting and contentious evaluation processes currently hindering energy efficiency in existing buildings.

The document proposes replacing California's current electricity sector policies with a system-wide carbon standard and per capita energy intensity standards for electricity and natural gas. It argues that the existing Renewable Portfolio Standard (RPS) and Efficiency Savings and Performance Incentive (ESPI) are insufficient for long-term goals due to siloed procurement and overly conservative efficiency targets. Key recommendations include a 2030 carbon standard of 393lb. CO2e/MWh, a 50 percent renewable energy procurement "backbone," and a performance-based energy standard targeting a 1.2 percent annual reduction in kWh/capita. The report also suggests expanding the Energy Imbalance Market (EIM) to a West-wide scale and expediting the implementation of AB 758 for existing buildings.

The report proposes a 2030 target for California to reduce carbon emissions to 40% below 1990 levels, asserting that this is technically feasible and economically viable. It recommends maintaining a policy portfolio where a broad cap-and-trade program acts as an emissions ceiling over sector-specific policies. To manage costs and uncertainty, the author suggests extending current cost-containment tools, including a three-tiered allowance reserve and a forward-borrowing mechanism. The analysis incorporates both capped emissions and uncapped sectors—such as agriculture and waste—predicting that the state can reach the target through commercially available technology and induced innovation in clean tech industries.

The document outlines the economic and environmental advantages of electric vehicles (EVs) in Oregon, noting that they offer lower fuel and maintenance costs compared to gasoline vehicles. It highlights that EVs in Oregon produce fewer global warming emissions than any gasoline-powered vehicle and that these emissions will further decrease as the state increases its use of renewable energy. The text advocates for policies to reduce up-front costs and expand charging infrastructure to overcome barriers to adoption.

The 2015 update to the Massachusetts Clean Energy and Climate Plan for 2020 (CECP Update) outlines a comprehensive strategy to reduce greenhouse gas (GHG) emissions by at least 25% below 1990 levels by 2020. The plan identifies key drivers for these reductions, most notably vehicle GHG emission standards and the import of clean electricity. It also provides a framework for long-term goals, aiming for an 80% reduction by 2050 through a strategy of reducing energy consumption, decarbonizing the electricity supply, and electrifying transportation and heating. The report includes detailed assessments of building efficiency, transportation, electricity generation, and non-energy emissions, as well as research on land use and carbon storage in terrestrial and wetland ecosystems.

The report identifies geothermal energy as a cost-competitive, low-carbon baseload power source, but notes that its deployment is hindered by high resource risks and long development timelines. It finds that 76-90% of geothermal project investments rely on public debt or equity, as the private sector is generally unwilling to fund the high-risk exploration phase. The document argues that while current policy support often focuses on the operational phase, public finance should be redirected toward the early stages of project development to attract more private capital.

The policy brief analyzes the effectiveness of coal-fired electricity regulations in Canada and the United States. It finds that the U.S. approach, which targets the broader electricity sector and existing plants, will deliver significantly higher national emission reductions by 2020 and 2030 than the Canadian approach, which focuses on new plants and those reaching the end of their useful life. Despite these policies, neither country is projected to meet its Copenhagen Accord target of a 17% reduction in emissions by 2020 relative to 2005 levels.

Earthjustice reacts to the third National Climate Assessment, which concludes that the United States is unprepared for the risks of a rapidly changing climate. The organization advocates for the implementation of President Obama's Climate Action Plan, specifically targeting carbon pollution from coal-fired power plants, and criticizes the fossil-fuel industry for opposing renewable energy solutions such as solar power and renewable portfolio standards.

The document analyzes state green banks as quasi-governmental financial institutions designed to leverage public funds to increase private investment in clean energy and energy efficiency. It details the operational model of Connecticut's CEFIA, highlighting its use of credit enhancements and diverse financing tools to bridge the 'deployment gap' for commercially available technologies. The paper also reviews emerging green bank models in New York, Vermont, and Hawaii, while discussing the systemic benefits and drawbacks of state-level financing authorities.

The report finds that a large majority of Marylanders favor increasing the use of renewable energy, particularly solar and wind, while expressing a desire to reduce the use of coal and petroleum. While there is strong support for state mandates requiring renewable energy percentages and for financial rebates on energy-efficient appliances, there is low interest and participation in home energy audits due to cost and awareness barriers. Additionally, the survey reveals a significant gap in support for natural gas depending on whether it is extracted via hydraulic fracturing within the state.

The report details how Illinois municipalities use Community Choice Aggregation (CCA) to pool electricity purchasing power, enabling them to negotiate lower rates and switch to cleaner energy sources. Since 2013, over 90 Illinois towns have transitioned to 100% renewable electricity via Renewable Energy Credits (RECs), increasing demand for wind and solar by over 6 terawatt hours. The document provides case studies from Oak Park and Chicago, analyzes CCA adoption in other states like California and Massachusetts, and offers strategic recommendations for municipalities to move beyond RECs toward local renewable energy investments.

The report identifies a significant range of estimated DPV values driven by differences in local context, input assumptions, and methodologies. While there is general agreement on estimating energy and capacity values, there is less consensus on grid support services and unmonetized values such as financial, security, environmental, and social risks. The analysis highlights that no single study comprehensively evaluated all DPV benefits and costs, and that costs associated with increased deployment are often inadequately assessed.

Combined heat and power (CHP) systems integrate heat and electric power production, achieving efficiencies of 70 percent or more compared to less than 45 percent for separate production. In the United States, there are over 4,100 systems with more than 82 GW of installed capacity, primarily in the chemical (29%), petroleum refining (18%), and pulp and paper (14%) industries. The DOE and EPA estimate an untapped potential of 130 GW, which could save U.S. businesses $10 billion annually and further reduce CO2 emissions by 150 million tons per year. Beyond efficiency, CHP provides critical resilience during extreme weather events, as demonstrated during Hurricane Sandy and Hurricanes Katrina and Rita. While biomass-fueled CHP offers a path to net carbon negative operations by avoiding methane emissions from waste, widespread deployment is hindered by regulatory and legal barriers, including interconnection standards and backup power rates.