A public utility has sole discretion to determine the method by which it expends or invests the proceeds received from the issuance of securitized utility tariff bonds. Nothing in this act shall be construed to restrict the ability of a public utility from investing the proceeds in infrastructure as the utility deems necessary for it to continue to meet its obligations of providing reasonably efficient and sufficient service pursuant to Kan. Stat. Ann. §§ 66-101b and 66-1,201, and amendments thereto. If the public utility invests in infrastructure, the commission shall review these investments using its regular processes for consideration and rate-making determination of infrastructure investments. For electric public utilities, this review may take place as part of an application for predetermination filed pursuant to Kan. Stat. Ann. § 66-1239, and amendments thereto, or for electric and natural gas public utilities, as part of any other rate-making process established by the commission pursuant tochapter 66 of the Kansas Statutes Annotated, and amendments thereto.