Revising solar energy policy laws

This bill establishes a Montana Solar Shares Act to create a shared solar energy program where multiple customers subscribe to electricity generated by a single solar facility. It requires public utilities to interconnect shared solar facilities within their service territories and provide on-bill credits to subscribing customers based on their share of the facility's output. The legislation defines shared solar facilities as systems between 50 kilowatts and 5 megawatts that serve multiple customers in the same area, distinguishing them from traditional net metering arrangements. Key provisions include rules for credit calculations, customer account transfers, and the ability for subscribers to assign their energy shares to low-income programs or nonprofits. The bill also grants the state commission authority to adopt specific rules for implementing this shared solar framework.