Abstract: A method and system for charging a fee to an end user where a service company services a lighting system of the end user's facility. To determine the fee, an original power consumption of the facility is determined before the lighting system is retrofitted with at least one power savings device. Thereafter, the lighting system is retrofitted with the at least one power saving device. Then, a new power consumption is measured of the facility. Finally, the fee is charged to the end user, such that the fee is a function of a difference between the original power consumption and the new power consumption.

Abstract: A method and system for charging a fee to an end user where a service company services a lighting system of the end user's facility. To determine the fee, an original power consumption of the facility is determined before the lighting system is retrofitted with at least one power savings device. Thereafter, the lighting system is retro-fitted with the at least one power saving device. Then, a new power consumption is measured of the facility. Finally, the fee is charged to the end user, such that the fee is a function of a difference between the original power consumption and the new power consumption.