Submittal

3
(iii) the building envelope.
(c) It is certified that the interior lighting systems, heating, cooling,
ventilation, and hot water systems, and building envelope that have been incorporated
into the building, or that the taxpayer plans to incorporate into the building subsequent
to the installation of such property, will reduce the total annual energy and power costs
with respect to combined usage of the building’s heating, cooling, ventilation, hot water,
and interior lighting systems by 50 percent or more as compared to a Reference
Building that meets the minimum requirements of Standard 90.1-2001. The required
50-percent reduction must be accomplished solely through energy and power cost
reductions for the heating, cooling, ventilation, hot water, and interior lighting systems.
Reductions in any other energy uses, such as receptacles, process loads, refrigeration,
cooking, and elevators, are not taken into account in determining whether the 50-
percent reduction is achieved.
(2) Maximum Amount of Deduction.
(a) In General. The deduction for the cost of energy efficient
commercial building property installed on or in a building shall not exceed the excess (if
any) of--
(i) the product of $1.80 and the square footage of the
building, over
(ii) the aggregate amount of the § 179D deductions allowed
with respect to the building for all prior taxable years.
(b)
Application to Multiple Taxpayers. If two or more taxpayers