(a) Not later than January 1, 2020, the department shall work with other state agencies to retrofit at least 25 percent of all public facilities, starting with those it determines are the least energy efficient, if the department determines that retrofitting the public facilities will result in a net savings in energy costs to the state within 15 years after completion of the retrofits for a public facility and if funding for the retrofits is available.

(b) A retrofit or deferred maintenance of a public facility performed under this section, to the extent feasible, shall meet or exceed the most recently published edition of the ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except for Low-Rise Residential Buildings, as published by the American Society of Heating, Refrigerating and Air-Conditioning Engineers.

(c) New construction of a public facility under this section shall meet or exceed the most recently published edition of the ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except for Low-Rise Residential Buildings, as published by the American Society of Heating, Refrigerating and Air-Conditioning Engineers.

(d) Not later than January 1 of each year, the department, in consultation with the Department of Administration, shall submit a report to the legislature detailing the department's progress in meeting the requirements of this section to reduce state energy consumption and costs and carrying out the duties listed in AS 44.42.020 as they relate to energy use. The department shall include in the report an analysis of the consumption and expense data recorded by the office of management and budget under AS 37.07.040, comparing energy consumption levels in each year with past years to determine if reductions are being achieved.

(e) In this section, “public facility” means a facility owned and controlled by the state for government or public use that is 10,000 square feet or more and is not a legislative building or court building.