Section 39.154 - Limitation of Ownership of Installed Capacity(a) Beginning on the date of introduction of customer choice, a power generation company may not own and control more than 20 percent of the installed generation capacity located in, or capable of delivering electricity to, a power region.(b) In a power region not entirely within the state, the commission may waive or modify the requirement in Subsection (a) on a finding of good cause.(c) In determining the percentage shares of installed generation capacity under this section, the commission shall combine capacity owned and controlled by a power generation company and any entity that is affiliated with that power generation company within the power region, reduced by the installed generation capacity of those facilities that are made subject to capacity auctions under Sections 39.153(a) and (d).(d) In this chapter, "installed generation capacity" means all potentially marketable electric generation capacity, including the capacity of: (1) generating facilities that are connected with a transmission or distribution system;(2) generating facilities used to generate electricity for consumption by the person owning or controlling the facility; and(3) generating facilities that will be connected with a transmission or distribution system and operating within 12 months.(e) In determining the percentage shares of installed generation capacity owned and controlled by a power generation company under this section and Section 39.156, the commission shall, for purposes of calculating the numerator, reduce the installed generation capacity owned and controlled by that power generation company by the installed generation capacity of any "grandfathered facility" within an ozone nonattainment area as of September 1, 1999, for which that power generation company has commenced complying or made a binding commitment to comply with Section 39.264. This subsection applies only to a power generation company that is affiliated with an electric utility that owned and controlled more than 27 percent of the installed generation capacity in the power region on January 1, 1999.Added by Acts 1999, 76th Leg., ch. 405, Sec. 39, eff. Sept. 1, 1999.