Electric pressure washers save fuel and can be used indoors. For industrial applications check out the DeWALT DXPW1200E 1200 PSI @ 2 gallons per minute pressure washer. It uses a 120 volt high induction motor and a maintenance free industrial triplex plunger pump. The 1-1/4″ steel frame is designed to last on the job and the big tires get you through any terrain. It includes 5 quick connect nozzles: 0°, 15°, 25° 40° and soap. In our tests the unit worked well for low pressure applications. We would however like to see a 50′ hose instead of the included 25′ hose. DeWALT covers this product with a 1 year warranty. For more power check out some other pressure washers we have reviewed.