Tucker Perkins to keynote virtual Green Bus Summit Tucker Perkins, president and CEO of the Propane Education & Research Council (PERC), will provide this year’s keynote address at the Green Bus Summit Virtual Conference, presented by School Transportation News, April 20-22. Perkins Perkins will take the virtual stage at 11 a.m. Eastern on April 20. Titled “Accelerating Decarbonization with Propane School Buses,” Perkins’ address will detail why more than 1,000 school districts across the country are investing in propane autogas to provide a clean, safe ride to school for their students without sacrificing the performance, affordability and reliability required of a school bus, according to PERC. Perkins will also compare propane autogas buses to other alternative energy solutions and detail how propane autogas school buses are the best option to accelerate the decarbonization of the school transportation market fastest.