I am a property management company. We use diesel to generate electricity for the owner, but the owner asks us to provide an invoice to pay. What invoice should we provide him?

Such as power generation to provide access control system, corridor street lamps, high-rise elevators and other public facilities and equipment. , provide relevant oil purchase invoices;

If all power supply is levied on a specific owner, an independent electric meter shall be installed and charged at the agreed price according to the reading of the electric meter, and invoices such as special service fees shall be issued;