A free portal sponsored by the Department of Energy (DOE) and its predecessors, the Energy Research and Development Administration (ERDA) and the Atomic Energy Commission (AEC). It covers publicly available energy and energy related literature in the disciplines of biology, chemistry, engineering, environmental sciences, fission and nuclear technologies, fossil fuels, geosciences, materials, mathematics, computing, physics and more. It includes technical reports, bibliographic citations, journal articles, conference papers, books, multimedia and data information.