Quote:
Originally Posted by Cobb
I got a harbor freight generator that is rated at 800 watts, runs 5.5 hours on a gallon of fuel. Wow, either its pretty efficient or just a very small displacement?
|
Probably small displacement because it's not very efficient. The energy content of a gallon of gasoline is 36.6 kWh, and 800 watts for 5.5 hrs is 4.4 kWh, so the efficiency is only about 12%. And i doubt it will run at 800 watts continuously so efficiency will be even less.