No later than July 1, 2021, the secretary shall establish a program for measuring and benchmarking the energy, including electricity, natural gas, fuel oil, and steam, efficiency of all state buildings under custody and control of the state. Such program shall use the benchmarking tool Energy Star Portfolio Manager operated by the United States Environmental Protection Agency. No later than October 1, 2021 and each year thereafter, the secretary shall compile and submit energy usage data for all state buildings to such benchmarking tool. The secretary shall report annually to the Legislature regarding the building energy performance compared to similar buildings in similar climates, as determined by the Energy Star Portfolio Manager.