; (3) the total projected amount of energy, or as applicable, water, savings likely to result directly from the imposition of the building energy code; (4) any reduction or increase of the utility or the performance of the covered buildings likely to result from the imposition of the building energy code; (5) the need for national energy and water conservation; and (6) other facts the Secretary considers relevant. . 1102. Budget-neutral demonstration program for energy and water conservation improvements at multifamily residential units (a) Establishment The Secretary of Housing and Urban Development (referred to in this section as the Secretary ) shall establish a demonstration program under which, during the period beginning on the date of enactment of this Act, and ending on September 30, 2020, the Secretary may enter into budget-neutral, performance-based agreements that result in a reduction in energy or water costs with such entities as the Secretary determines to be appropriate under which the entities shall carry out projects for energy or water conservation improvements at not more than 20,000 residential units in multifamily buildings participating in— (1) the project-based rental assistance program under section 8 of the United States Housing Act of 1937 ( 42 U.S.C. 1437f ), other than assistance provided under section 8(o) of that Act; (2) the supportive housing for the elderly program under section 202 of the Housing Act of 1959 ( 12 U.S.C. 1701q )