Solid Oxide Auxiliary Power Unit
ULTRA EFFICIENT APUs FOR LONG-HAUL & REFRIGERATED TRUCKING
We’re building the next generation of APUs for the trucking industry. The Petra Power System improves diesel fuel efficiency by up to 90%, slashes operating costs by $7,000 annually, and minimizes emissions.
The World’s Most Advanced Diesel APU
Built around proprietary NASA technology, Petra’s Solid Oxide APUs convert diesel fuel directly to electricity without combustion. Our APUs deliver ultra-efficient, low-emission power without requiring fleets to change fuels or compromise on performance.