or expansion, $260,000,000, to remain available until expended: Provided , That of such amount, $28,500,000 shall be available until September 30, 2020, for program direction. Nuclear energy For Department of Energy expenses including the purchase, construction, and acquisition of plant and capital equipment, and other expenses necessary for nuclear energy activities in carrying out the purposes of the Department of Energy Organization Act ( 42 U.S.C. 7101 et seq.), including the acquisition or condemnation of any real property or any facility or for plant or facility acquisition, construction, or expansion, $1,206,000,000, to remain available until expended: Provided , That of such amount, $80,000,000 shall be available until September 30, 2020, for program direction. Fossil energy research and development For Department of Energy expenses necessary in carrying out fossil energy research and development activities, under the authority of the Department of Energy Organization Act ( 42 U.S.C. 7101 et seq.), including the acquisition of interest, including defeasible and equitable interests in any real property or any facility or for plant or facility acquisition or expansion, and for conducting inquiries, technological investigations and research concerning the extraction, processing, use, and disposal of mineral substances without objectionable social and environmental costs ( 30 U.S.C. 3 , 1602, and 1603), $727,000,000, to remain available until expended: Provided , That of such amount $61,070,000 shall be available until September 30, 2020, for program direction. Naval petroleum and oil shale reserves For Department of Energy expenses necessary to carry out naval petroleum and oil shale reserve activities, $10,000,000, to remain available until expended: Provided , That notwithstanding any other provision of law, unobligated funds remaining from prior years shall be available for all naval petroleum and oil shale reserve activities. Strategic petroleum reserve For Department of Energy expenses necessary for