Sec. 11. (a) A guaranteed savings contract that includes stipulated savings must specify the methodology used to calculate the savings using industry engineering standards.
(b) Stipulated savings may be used for conservation measures including the following:
(1) Heating.
(2) Air conditioning.
(3) Ventilating.
(4) Lighting.
(5) Roofing.
(6) Windows.
(7) Water conservation.
(8) Fuel and power improvements.
(9) Wastewater generation.
(10) Billable revenue increases.
(11) Any work that is causally connected to the conservation measures listed in subdivisions (1) through (10).
(c) The guaranteed savings contract shall:
(1) describe stipulated savings for:
(A) conservation measures; and
(B) work causally connected to the conservation measures; and
(2) document assumptions by industry engineering standards.