Think the subject. An appraiser from a bank or business loan institution comes with the facility guide establish the price of your operation. He sees from a distance how the generator enclosure or cabinet definitely needs maintenance picture. The exhaust stack on top is brown with rust, causing wide brown streaks to appear on the edges. Around the base thick rust spots with blistering and peeling paint are recognizable. He opens one of the cabinet doors, then looks at the hour meter, inspects the inside, same thing, more rust with blistering and peeling coloring.
A 4400 watt gasoline 150Kw Diesel Generator uses about 4.2 gallons of gasoline almost every 8 hours of active service. This comes out to 9.6 gallons of gas for a 24 hour period or around $38 for 24 hours of start using.
Maintenance - With gas engines, you could have things like spark plugs, and carburetors that have to have frequent servicing and effort.