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The US experienced a nearly four-fold increase in electricity from wind and solar between 2007 and 2012, with nine states already generating 10 percent or more of their power from these sources. The document asserts that current grid tools can handle higher percentages of variable renewable energy and that a combination of wind, solar, geothermal, biomass, and hydropower could supply 80 percent of US electricity by 2050, with wind and solar alone contributing 50 percent.

The report examines the growth of wind and solar power in the U.S. and globally, asserting that the technical challenges of variable energy sources are manageable. It highlights successful integration by utilities like Xcel Energy and countries like Denmark and Germany. The document details various tools for maintaining reliability—including geographic dispersion, improved forecasting, transmission upgrades, and energy storage—and cites studies suggesting that renewables could provide 80% of U.S. electricity by 2050.

The Environmental and Energy Study Institute (EESI) calls for a fundamental shift in how the United States generates and distributes energy to address the increasing frequency and severity of climate-driven disasters. The author advocates for a 'moon-shot challenge' of energy transformation, emphasizing the need for a smarter, more resilient, and distributed power grid, as well as the integration of climate variability assumptions into all new infrastructure and building projects.

The document describes the technical operation of battery electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs), noting that a range of 60 to 120 miles can satisfy the vast majority of daily travel needs. It details the 2012 U.S. market, highlighting the Chevrolet Volt and Nissan LEAF as dominant models and comparing specifications for several other vehicles. The text analyzes the economic impact of battery costs, the necessity of charging infrastructure, and the role of federal and state tax credits in making PEVs commercially viable.

The analysis finds that EVs generally produce lower global warming emissions than average compact gasoline vehicles, though their relative performance against high-efficiency hybrids depends on the regional electricity grid's fuel mix. In 'BEST' regions, EVs outperform 50 mpg hybrids, while in 'GOOD' regions, some hybrids remain a better choice for emissions. Financially, EV owners in 50 major U.S. cities can save between $750 and $1,200 annually in fuel costs when using the lowest-cost electricity plans, with significant additional savings available through time-of-use (TOU) rate plans, particularly in California.

The document highlights the inefficiency of the United States' building stock, which consumes 42 percent of the nation's total energy, and promotes five strategic solutions—technology adoption, integrative design, policy updates, low-cost financing, and valuing non-energy benefits—to achieve deep energy retrofits and support a cleaner electricity grid.

The report assesses how a 30% GHG reduction target by 2020 would affect EU energy security compared to a 20% target and a business-as-usual scenario. It finds that more ambitious targets generally improve primary energy security by reducing overall energy demand and fossil fuel imports, particularly oil. However, it notes that the transition may increase risks for specific countries like Poland due to a shift from coal to imported gas, and could negatively impact electricity grid security due to the intermittency of renewables and the need for significant new capacity investments.

The Obama administration's FY 2012 budget proposal emphasizes investments in clean technology, energy efficiency, and renewable energy to drive economic growth. Key funding increases are proposed for the DOE's Energy Efficiency and Renewable Energy office, bioenergy RDD&D, and transportation infrastructure, while funding for fossil energy and the EPA's overall budget is reduced. The proposal also introduces new initiatives such as the Better Buildings Initiative and a National Infrastructure Bank.

The research evaluates how different market designs affect the European power grid's ability to integrate wind energy. It finds that the current zonal pricing system fails to reflect the physical reality of the grid, leading to inefficient network use and higher costs. Simulations using the MADRID and DRESDEN models demonstrate that a nodal pricing regime would increase international power transfers by up to 34% and generate annual system variable cost savings between €0.8 billion and €2.0 billion, depending on wind penetration levels.

The report analyzes Chile's transition toward non-conventional renewable energy (NCRE), noting that while installed capacity in the Central Interconnected Grid (SIC) nearly doubled between 2007 and 2009, the sector remains hindered by high market concentration and financial risks. It details the impact of Law No. 20.257, which mandates a clean energy quota of 5% by 2010 and 10% by 2024, and evaluates CORFO's incentive programs. The document highlights a critical tension between the growth of clean energy and a simultaneous increase in coal-fired generation, which threatens Chile's climate goals and long-term competitiveness.

The report describes Feed-in Tariffs (FITs) as a policy tool to accelerate renewable energy deployment by providing guaranteed, long-term payment rates and grid access to producers. It highlights successful implementations in Denmark and Germany, while noting that Spain's high rates led to overinvestment and a subsequent global drop in solar panel prices. In the US, the report notes a lack of federal policy but identifies local efforts in Gainesville, Florida, and California, concluding with design recommendations such as using trial phases and binding caps to avoid windfall profits.

The Union of Concerned Scientists asserts that the United States requires federal legislation to overcome barriers in the planning and siting of transmission lines, which currently hinder the deployment of renewable energy. The document advocates for 'Green Energy Superhighways' to connect remote renewable resource areas to population centers, while emphasizing that federal authority should act as a backstop when states cannot agree on facilities of national interest. It warns that without a federal cap-and-trade system, transmission expansion in the Northeastern United States could inadvertently increase carbon emissions by allowing coal-based power to flow from non-RGGI states to those with emission caps.

The document explains how wind energy integrates into the New England electricity grid to displace polluting fossil fuels, particularly natural gas, oil, and coal. It highlights the importance of siting turbines in high-wind areas to maximize pollution reduction and discusses policy mechanisms like cap-and-trade and renewable portfolio standards to accelerate the transition to clean energy.

The document outlines the environmental and economic benefits of wind energy in New England, noting that over 60 percent of the region's electricity was generated from fossil fuels in 2005. It explains how wind power integrates into the grid via ISO New England to displace more expensive and polluting plants, particularly oil-fired plants during winter peaks. The text highlights that 18 proposed wind projects with a total capacity of 1,890 MW could avoid millions of tons of pollution annually, including over 3 million tons of CO2. It also discusses the importance of siting for efficiency and the role of policy mechanisms like cap-and-trade and renewable portfolio standards in accelerating the transition.

The study evaluates 19 scenarios for decarbonising Poland's power system by 2050, concluding that a technology-inclusive strategy is essential for reliability and cost-effectiveness. It identifies wind and solar as cornerstones but emphasizes the need for 'clean firm power' to replace coal, which currently provides 70% of dispatchable generation. The report warns that excluding options like nuclear power or carbon capture could triple the required energy infrastructure and significantly increase costs. Key recommendations include expanding onshore wind to approximately 70 GW, establishing a nuclear fleet exceeding 8 GW, and implementing natural gas plants with carbon capture.

The document critiques the over-reliance on Levelised Cost of Electricity (LCOE) in EU energy policy, noting that while it provides a project-level cost snapshot, it fails to account for system-wide needs, dispatchability, and the full cost to ratepayers. It advocates for a systems-level approach that integrates diverse generation, storage, and demand-response technologies to ensure a reliable, low-carbon grid.

The document highlights that just 1% of China's superhot rock geothermal resource could provide 10,513 GW of energy capacity, potentially replacing all fossil fuels used for electricity production and reducing carbon emissions by approximately 5,943 megatonnes. It argues that this energy source offers a low land-use footprint, provides reliable 24/7 power, and allows for a transition of the existing oil and gas workforce into the zero-carbon sector.

The document highlights that just 1% of Niger's estimated superhot rock geothermal resource could provide 1,469 GW of energy capacity, far exceeding the country's 2021 electricity consumption of 721 GWh. This resource could theoretically replace all electricity imports, primarily from Nigeria, and reduce electricity sector carbon emissions by approximately 0.7 megatonnes, contributing 13% toward Niger's 2030 NDC goal. Additionally, the technology is noted for its low land footprint, requiring roughly 12 km² per 1 GW, and its potential to help Niger reach its target of 100% electrification by 2035.

The document outlines the potential of superhot rock geothermal energy in Utah, noting that just 1% of the state's resource could provide 327 GW of energy capacity. It argues that this technology offers a low land-use footprint and a transition pathway for oil and gas workers.

The document outlines the role of small-scale Independent Power Producers (IPPs) in Indonesia's energy transition, highlighting their ability to reduce state budget pressure and increase renewable energy capacity. It identifies significant barriers to growth, including financing difficulties, complex permitting processes, and grid instability in remote areas, and recommends a policy package of technical and financial support to enable the sector to expand.