The gateway to energy technology discoveries, ETDEWEB includes information on energy R&D; energy policy and planning; basic sciences (e.g., physics, chemistry and biomedical) and materials research; the environmental impact of energy production and use, including climate change; energy conservation; nuclear (e.g., reactors, isotopes, waste management); coal and fossil fuels; renewable energy technologies (e.g., solar, wind, biomass, geothermal, hydro.