Ind. Code § 8-1-2-48
(c) In carrying out its duties and powers under subsection (a) with regard to any utility which sells or generates electricity, the commission may also inquire into or audit a utility's powerplant efficiency and system reliability.
Formerly: Acts 1913, c.76, s.51; Acts 1927, c.146, s.1. As amended by Acts 1981, P.L.104, SEC.4; P.L.53-1992, SEC.1; P.L.1-1993, SEC.47; P.L.159-2002, SEC.5.