Join the Montana Renewable Energy Association for for its seventh annual fair, which includes workshops on solar and wind, alternative fuel vehicles, energy efficiency, and other clean-energy technologies. Exhibits by clean energy businesses, an electric car show, food vendors and kids' activities are also on tap. The Helena Sun Run, a 5K run and one-mile walk, starts at 9 a.m. in Anchor Park (register at runsignup.com); proceeds support a solar array at Carroll College.
Sat, September 16th
Pioneer Park, Helena