In order to more effectively administer the provisions of the Kansas nuclear generation facility siting act with respect to determining whether or not a necessity exists for a proposed nuclear generation facility, the commission shall compile and maintain a comprehensive statewide electric generation capacity forecast. In compiling and maintaining said forecast, the commission may hold such hearings deemed necessary. The proceedings of any such hearing shall be governed by the rules and regulations adopted by the commission pursuant to Kan. Stat. Ann. § 66-106, and amendments thereto. For the purposes of this section, every municipally owned or operated electric utility and every electric utility operating wholly and solely within the legal boundaries of any municipality and within three miles thereof shall furnish to the commission such information as to electric generation capacity as the commission may require.