(1) A state agency may not lease, construct, or have constructed, within limits prescribed in this section, a facility without having secured from the department an evaluation of life-cycle costs based on sustainable building ratings. Construction shall proceed only upon disclosing to the department, for the facility chosen, the life-cycle costs as determined in s. 255.255, the facility’s sustainable building rating goal, and the capitalization of the initial construction costs of the building. The life-cycle costs and the sustainable building rating goal shall be primary considerations in the selection of a building design. For leased facilities larger than 2,000 square feet in area within a given building boundary, an energy performance analysis that calculates the total annual energy consumption and energy costs per square foot shall be performed. The analysis must also compare the energy performance of the proposed lease to like facilities. A lease may not be finalized until the energy performance analysis has been approved by the department. (2) No state agency shall initiate construction or have construction initiated, prior to approval thereof by the department, on a facility or self-contained unit of any facility, the design and construction of which incorporates or contemplates the use of an energy system other than a solar energy system when the life-cycle costs analysis prepared by the department has determined that a solar energy system is the most cost-efficient energy system for the facility or unit.
(3) After September 30, 1985, when any state agency must replace or supplement major items of energy-consuming equipment in existing state-owned or leased facilities or any self-contained unit of any facility with other major items of energy-consuming equipment, the selection of such items shall be made on the basis of a life-cycle cost analysis of alternatives in accordance with rules promulgated by the department under s. 255.255. 