SACRAMENTO, Calif., Jan. 14, 2016 (GLOBE NEWSWIRE) -- Aerojet Rocketdyne, a subsidiary of Aerojet Rocketdyne Holdings, Inc. (NYSE:AJRD), has successfully completed field testing of a compact Hybrid Renewable Multi-fuel Power Generator (HR-MPG) that uses surplus materiel to generate electricity for warfighters deployed to forward locations. The HR-MPG is a self-contained 4' x 8' towable trailer that includes everything needed to easily convert common surplus materiel such as cardboard, wood, plastic bottles and food waste into electricity. The system works by burning the material and using the heat generated by the combustion to power a Stirling engine that, in turn, produces electricity. The recent testing demonstrated that the system was capable of generating enough electricity to power an average size home.