Tronair, Inc. offers several ground power units, both solid state and engine driven, that supply 28.5 VDC in rugged, compact, maneuverable units. The diesel or Jet A fuel engine driven unit produces 800 amps continuous and 2,000 amps peak. The gasoline engine driven unit produces 150 amps continuous and 1,000 amps peak, and was designed for the VLJ market.