Tex. Util. Code § 36.052
In establishing a reasonable return on invested capital, the regulatory authority shall consider applicable factors, including:
Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997.
Amended by Acts 1999, 76th Leg., ch. 405, Sec. 24, eff. Sept. 1, 1999.