8 1 School Aid Act as such section was in effect immediately 2 before September 30, 1979. 3 SEC. 605. There is hereby authorized to be appropriated 4 to the Secretary of the Interior such sums as may be neces5 sary to be expended, after consultation with the Secretary of 6 Energy, for developing the use of renewable sources of 7 energy in the Virgin Islands, Guam, American Samoa, and 8 the Northern Mariana Islands by— 9 (1) surveying existing sources and uses of energy; 10 (2) estimating future energy needs to the year 1 12 2020; (3) assessing, in depth, the potential of renewable 13 energy sources, including solar, wind, 14 ocean current and tidal, biogas biofuel, geothermal and 15 ocean thermal energy conversion; 16 17 hydropower, (4) demonstrating those renewable energy technologies that are determined to be most cost effective; 18 (5) drafting a plan for long-term energy develop- 19 ment in such territories making use of those renewable 20 energy technologies successfully demonstrated under 21 paragraph (4) of this section and other technologies 22 based on other sources of energy. 23 Sec. 606. Authorizations of moneys to be appropriated 24 under this Act shall be effective on October 1, 1980.