For the limited and special purpose of ensuring repayment of principal and interest on loans made pursuant to this chapter, the Public Utility Commission shall approve such security issues, affiliated interest agreements and rate increase requests by applicants that are regulated utilities as are necessary and appropriate. For this purpose, the Public Utility Commission shall establish such expedited practices, procedures and policies as necessary to facilitate and accomplish repayment of the loans. Nothing in this chapter shall be construed as to require approval of rate increases greater than that necessary to accomplish the repayment of loans made pursuant to this chapter.