Nothing in this section shall be construed to preclude or interfere with the implementation
by an electric utility company of measures necessary to assure the provision of adequate,
efficient, reliable and environmentally safe service, as required by the Illinois
Public Utilities Act (220 ILCS 5/1-101 et seq.). Nothing set forth in this section
shall be deemed to modify the terms of any existing franchise agreement or franchise
ordinance otherwise applicable to any electric utility company, or to excuse any performance
required such agreement or ordinance, or to limit any authority that may be exercised
pursuant to such agreement or ordinance, or to limit any remedy that may be available
under such agreement or ordinance.