Ariz. Rev. Stat. § 34-105
F. The guaranteed energy cost savings contract shall require that in determining whether the projected energy savings calculations have been met, the energy costs savings shall be computed by comparing the energy baseline before installation or implementation of the energy cost savings measures with the energy consumed after installation or implementation of the energy cost savings measures. The qualified provider and the agent may agree to make modifications to the energy baseline only for any of the following:
J. The guaranteed energy cost savings contract shall include a written guarantee of the qualified provider that the energy cost savings will meet or exceed the costs of the energy cost savings measures over the expected life, according to the manufacturer's equipment standards, of the energy cost savings measures implemented, the term of the financial agreement or twenty-five years, whichever is shortest, except as provided in subsection I of this section. The qualified provider shall:
P. For the purposes of this section:
4. "Energy cost savings" means one or both of the following:
5. "Energy cost savings measure" means a training program or facility alteration designed to reduce energy consumption and may include one or more of the following, and any related meters or other measuring devices: