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Author/Creator
- United States42
- National Renewable Energy Laboratory (U.S.)16
- United States. Congress. Senate. Committee on Energy and Natural Resources14
- United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Research and Development11
- Library of Congress. Congressional Research Service, issuing body8
- Sioshansi, Fereidoon P. (Fereidoon Perry)8
- United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Energy and Power8
- United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Environment8
- United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Energy Research and Development7
- United States. Congress. Joint Committee on Taxation7
- ebrary, Inc7
- Helm, Dieter6
- United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Development and Applications6
- United States. Congress. House. Committee on Science. Subcommittee on Energy6
- United States. Congress. Senate. Committee on Finance6
- United States. Department of Energy. Office of Energy Efficiency and Renewable Energy6
- Sissine, Fred J.5
- United States. Congress. Senate. Committee on Energy and Natural Resources, author5
- United States. Congress. Senate. Committee on Environment and Public Works, author5
- Argonne National Laboratory4