With respect to the net capital costs associated with the relocation underground of utility lines and facilities in connection with projects required by § 8–401 of the Land Use Article, the Commission shall: set the amount of the monthly surcharge required to support the costs and determine which customers of the applicable utility are subject to the surcharge; include in the rate base the related net capital costs; or adopt another method to apportion the costs appropriately. A utility may not be required to pay more than 50% of the net capital costs of a relocation project. A county or municipal corporation may appropriate money for a relocation project from appropriate federal, State, and local funds it receives for this purpose.