using natural gas to generate electricity

looks like you dont get it cause you cannot comprehend that it takes more energy to pull 1 tonne than it does to pull 500 kg..

you are all retarded .... the less load u pull the less energy u use u imbociles/.

Yeah you are correct that it takes twice as much, but what you don't get is that it takes no energy to "pull one tonne" and twice nothing is still nothing.

Generators also turn with little mechanical resistance when there is no electrical load connected. when you connect a electrical load the mechanical load presented by the generator also increases.

Stepper mpotors (like you find inside junk inkjet printers and page scanners) make neat little generators, get one, do some experiments.

I'm not an expert, but trust me generators are nasty things to deal with. Peak loads, as with comercial generation is the main concern. Here the mains power is dodgey and every block of units has a generator. To provide enough power during peak times you need a large unit, which is then not economical to run when loads are down. Daylight hours all you are running are fridges and hot water. Night sees air-con, cooking and almost every appliance the tenant can find to turn on. Not trying to rain on your parade but this whole town runs on generators, sometimes for weeks on end (2nd largest city in the country). The only guys that benefit are the mechanics and sparkeys that make a killing on servicing the noisy brutes.