(a)
In proceedings pursuant to Section 455.5, 851, or 854, the commission shall ensure that facilities needed to maintain the reliability of the electric supply remain available and operational, consistent with maintaining open competition and avoiding an overconcentration of market power. In order to determine whether the facility needs to remain available and operational, the commission shall utilize standards that are no less stringent than the Western Electricity Coordinating Council and North American Electric Reliability Council standards for planning reserve criteria.
(b)
The commission shall require that generation facilities located in the state that have been disposed of in proceedings pursuant to Section 851 are operated by the persons or corporations who own or control them in a manner that ensures their availability to maintain the reliability of the electric supply system.