Tex. Gov't Code § 447.008
(a) On approval by the state energy conservation office, a state agency that reduces its energy or water expenses may use any funds saved by the agency from appropriated utility funds for the purchase of an energy-saving or water-saving device or measure. For purposes of this section, "energy-saving or water-saving device or measure" means a device or measure that directly reduces:
Added by Acts 1987, 70th Leg., 2nd C.S., ch. 52, art. 2, Sec. 1, eff. Sept. 1, 1987.
Amended by Acts 1989, 71st Leg., ch. 612, Sec. 1, eff. Sept. 1, 1989;
Acts 1991, 72nd Leg., ch. 176, Sec. 1, eff. Sept. 1, 1991;
Acts 1995, 74th Leg., ch. 526, Sec. 10, eff. Sept. 1, 1995;
Acts 1995, 74th Leg., ch. 698, Sec. 7, eff. Aug. 28, 1995;
Acts 1997, 75th Leg., ch. 1206, Sec. 23, eff. Sept. 1, 1997;
Acts 2001, 77th Leg., ch. 573, Sec. 10, eff. Sept. 1, 2001;
Acts 2001, 77th Leg., ch. 1158, Sec. 28, eff. June 15, 2001;
Acts 2001, 77th Leg., ch. 1398, Sec. 1, eff. Sept. 1, 2001. Redesignated from Government Code Sec. 447.010 and reenacted and amended by Acts 2003, 78th Leg., ch. 1310, Sec. 29, eff. June 20, 2003.