Subject to available funding, the Maryland Energy Administration, in consultation with the Commission, may offer upfront incentives or rebates to customers to acquire and install renewable on–site generating systems if the customer: enrolls in a pilot program or temporary tariff established under § 7–1005 of this subtitle; and allows the system to be used for electric distribution system support services for a period of not less than 5 years. The Maryland Energy Administration, in consultation with the Commission, may prioritize the offer of incentives or rebates under this section to low– or moderate–income customers. The Maryland Energy Administration, when approving an incentive or rebate under this section, shall ensure that the incentive or rebate is designed to supplement, to the greatest extent possible, other available State and federal incentives for customer adoption of renewable on–site generating systems.