This report analyses the nature of variable renewable energy and the resulting challenges associated with integrating variable renewable energy technologies into a power system. It highlights the importance of increased flexibility when integrating high levels of variable renewable energy.
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As distributed energy resource technologies proliferate on the grid, resulting changes to the grid will make it more efficient and reliable, and will provide end users with the opportunity to more proactively use energy and reduce the cost of services.
This white paper describes the U.S. regulatory agencies work on the second phase of heavy-duty vehicle greenhouse gas (GHG) and efficiency standards.
This journal article describes how urban population growth, improved living standards and dwindling water supplies in the United States are causing the demand for treated municipal water to exceed the supply.
This paper describes how the substantial increased use of ethanol in gasoline in the United States, spurred by a steady rise in the price of gasoline from 2006 to 2008, led to a reduction in greenhouse gas emissions but an increase in food prices in the country.
This website provides access to CO2 Emissions from Fuel Combustion Highlights, an annual publication that describes the latest information on the level and growth of CO2 emissions, their source and their geographic distribution for more than 140 countries and regions.
This report presents data on biofuel production in tropical countries in an attempt to provide a preliminary discussion of the agro-environmental impact of biofuel development. Specific attention is paid to Brazil and Malaysia, as they are the major possible exporters to the European Union.
This webinar provides an overview of implementing a renewable energy zone (REZ) for integrated transmission and generation planning.
In this webinar, panelists present tools local policymakers can use to set energy use baselines in their cities and identify policy options for enhancing energy efficiency in buildings. The panelists describe the roles tools can play along the stages of the policy development process.
This report describes the challenges of conducting wind integration studies. The lack of reliable and comparable knowledge about the effects of integrating wind generation can limit large-scale development of wind power, due to uncertainties about its impact, according to the authors.