Most reasonably priced generators are actually pretty loud, unreliable for long term use, and pricey to run. Just use your electricity. Seriously if you want a reliable and energy efficient generator (something that can run off natural gas, diesel, or petroleum) then your talking about spending tens of thousands of dollars or more. Those couple hundred to a few thousand dollar generators sold at home depo are only designed to run for a few hours each day (like in the 2-6 hour range). Anymore and you'll just be destroying it. The generators that can run 24/7 year in and year out reliability are super expensive like in the range of what a good mid size to luxury car would cost.