Houston METRO is testing out solar-powered fans at bus stops to provide relief to riders from extreme heat. Congresswoman Lizzie Fletcher brought the idea to METRO years ago, and the agency plans to install 50 prototypes.   The shelters are designed to be accessible, create airflow, and have digital screens to help riders track bus arrivals. Other cities are taking note of the idea, and if the fans make it out of the testing stages, it could be a huge improvement for riders.   Listen to the full story on houstonmatters.org. #metrohouston #lizziefletcher #congresswomanlizziefletcher #metro