In Montana, a distinctive solar incentive mandates regulated electric utilities to provide their customers with the opportunity to buy electricity produced from certified, environmentally-preferred sources. These sources encompass a broad range of renewable energies such as wind, solar, geothermal, and biomass. This initiative reflects Montana’s commitment to promoting green energy and providing consumers with sustainable electricity options. A notable example of this mandate in action is NorthWestern Energy’s implementation of the “E+ Green” program in June 2003. This program is designed to cater to the growing consumer demand for renewable energy, allowing customers to directly support the generation of clean energy. By participating, customers contribute to the reduction of reliance on fossil fuels, the decrease of carbon footprint, and the overall enhancement of environmental health. This incentive is a key component of Montana’s strategy to encourage the adoption of renewable energy technologies, stimulate green economic growth, and move towards a more sustainable energy future.