(4) The SWAC technology has been proven successful with large systems at Cornell University, Toronto, Canada, and the Natural Energy Authority of Hawaii (NELHA). (5) Environmental benefits of SWAC include being a clean, renewable source of energy, decreased reliance on fossil fuels for cooling, and reduction in greenhouse gas emissions. (6) Economic benefits of SWAC include stable long-term energy costs and independence from market trends, reduced operating costs (including lower costs in fuel, freshwater, equipment, and equipment maintenance), and being a cost-effective and attractive energy technology investment. 2. Energy credit for certain ocean thermal energy property (a) In general Section 48(a)(3)(A) of the Internal Revenue Code of 1986 is amended by striking or at the end of clause (vi), by adding or at the end of clause (vii), and by adding at the end the following new clause: (viii) equipment which converts ocean thermal energy to usable energy or which uses ocean water as a thermal energy sink to cool a structure, . (b) 15-Percent credit Section 48(a)(2)(A) of such Code is amended— (1) by striking and at the end of clause (i)(IV)