Troy-Bilt 3550 Watt Portable Generator

4 hour rental: $30
1 day rental: $45
1 week rental: $150

A 3500-watt generator can run most home and RV/camping appliances, including coffee makers, microwaves, dishwashers, toasters, TVs, vacuum cleaners, and power tools. 

The gas tank on the Troy-Bilt will run for 4 or 5 hours before running out of gas.