Question: how much does it cost to run natural gas generator?
Answer: 8) How much does it cost a month to run the generator when it runs for 10 minutes a week? Depending on the price of natural gas, it shouldn't cost more than $4 or $5 per month to run the unit in exercise mode. During a power outage, under 50% load expect to pay around $20-$30/day for gas usage.