Subd. 2.

Lowest possible cost; energy conservation.

The guidelines must:

(1) focus on achieving the lowest possible lifetime cost, considering both construction
and operating costs, for new buildings and major renovations;

(2) allow for revisions that encourage continual energy conservation improvements in
new buildings and major renovations;

(3) define "major renovations" for purposes of this section to encompass not less than
10,000 square feet deleted text begin ordeleted text end new text begin andnew text end not less than the replacement of the mechanical, ventilation, or
cooling system of a building or a building section;

(4) establish sustainability guidelines that include air quality and lighting standards and
that create and maintain a healthy environment and facilitate productivity improvements;

(5) establish resiliency guidelines to encourage design that allows buildings to adapt to
and accommodate projected climate-related changes that are reflected in both acute events
and chronic trends, including but not limited to changes in temperature and precipitation
levels;

(6) specify ways to reduce material costs; and

(7) consider the long-term operating costs of the building, including the use of renewable
energy sources and distributed electric energy generation that uses a renewable source or
natural gas or a fuel that is as clean or cleaner than natural gas.