Home › Forums › DISCUSS › General Discussion and Questions › Is a Generator that runs on Natrual Gas instead of gasoline a good idea? How long would Natrual Gas last in an emergency? › Gasifier suppliers
Victory Gasworks and Gekgasifier are two American woodgasifier brands. Expensive, but good, when in hands of an experienced operator and fed with the right fuel.
Every engine runs most efficient near max torque. Running it at 10% power means a great percentage of fuel is lost due to internal friction. Imagin it running at 0% power, so idle. Which genset uses most fuel: a 5 kW or a 50 kW?
You can live on 1 kW. 1 kW means 24 kWh a day. That’s 2.5 times the average household consumption in my country. You might need a battery pack and 2 or 3 kW inverter, depending on momentary power demand. I like my wind and solar system with a cheap generator as backup. It is a lazy way of power production. Only little maintenance, uses no oil and fuel, it is quiet, less complicated, half of it may break down and it still will limp on. In a TSHTF scenario you do not want to worry about fuel supply and maintenance, by having only one energy source. A genset should be the backup for your regular off-grid system. We have grid power, but I sized the off-grid system only that large that it can supply enough those few vital power users. The off-grid system runs these vital parts continously, in order to keep the batteries exercised.
I see a fossil fuel powered generator as a temporary methode. Good for a few days or weeks. So one needs to think for what timeframe he wants power backup and decide accordingly.