Baltimore’s Sarah M. Roach Elementary School has won the top prize in the third annual BGE Wires Down Video Challenge. Baltimore Gas and Electric Co. presented the Star Power Award and $10,000 to the school on Wednesday at a school assembly. In the competition, schools produced their own versions of the BGE Wires Down commercial to promote safety around power lines. Another $20,000 went to 10 other elementary schools in Central Maryland. More than 77,000 votes were cast over a two-week period in December to determine the winning videos, BGE said.