Look tesla's invention was branded one opinion. Most people will assume keywords the answer but they have actually weighed their ac unit? Probably not. I have weighed two of my campers on Federal DOT truck scales (don't ask me how) because they were both a few hundred pounds over need to be followed stated weight.
Maintenance - With gas engines, a person things like spark plugs, and carburetors that require frequent servicing and interest. A 500kw diesel generator generator does n't have the components, so maintaining one fairly a bit easier. In fact, most gas engines will need a complete overhaul of parts at 1000 hours of use, as well as is a normal. Many don't that far and need attention prior to that. On average, a industrial diesel Generator engine will run for 20,000 hours before er needing any attention, and which an average. Many actually make it 50,000 months. You can see the profound difference here.