An example method of wirelessly providing power to a receiver by a transmitter includes: (i) receiving, by a transmitter management device, information defining charging criteria, (ii) detecting a client device connected to the receiver, and (iii) in response to the detecting, determining whether the charging criteria are satisfied. The method further includes, in accordance with a determination that the charging criteria are satisfied, transmitting RF waves to form three-dimensional pockets of energy for providing power to the client device. The method also includes sending, to the transmitter management device that is remote from the transmitter, information (i) about an amount of power delievered to the client device, (ii) about a wireless utilization level of the transmitter, and (iii) about the location of the client device, wherein the transmitter management device generates a bill that is based on the information.