Thunder Bay Hydro's rooftop solar panel project is officially complete. The last of six City building's started collecting solar energy on Tuesday and officials held a ribbon cutting Wednesday. Hydro President Rob Mace says the solar panels do provide some energy. Panels have been installed on the roofs of the Port Arthur Arena, Tbaytel Work Centre, Mountdale Maintenance Garage, Thunder Bay Transit, Victoriaville Parkade and Superior North EMS building.