S.B. 154, which would repeal the state’s property tax exemption for net-metered alternative distributed generation (DG) systems beginning in 2018, passed the Montana Senate on March 9. Under the bill, exemptions for DG systems claimed prior to 2018 could be claimed for no more than 10 years after the installation of the system.

S.B. 154 would also repeal Montana’s residential income tax credit for net-metered systems beginning in 2018 and limit the carry-over period for credits issued prior to 2018 to four years following the year in which the energy system was acquired. In addition, S.B. 154 would repeal the state’s 35% income tax credit for commercial alternative energy systems beginning in 2018.