This is charts for various items that are used by people on a regular basis in normal everyday life. This will give you a guideline for deciding on the power source you may need.
WATTAGE CHARTS
Device Running Watts
Hedge Trimmer__________450
Lawn Mower__________1200
Weed Trimmer__________500
Edge Trimmer__________500
Chain Saw__________1200
Device Running Watts
Refrigerator / Freezer__________700*
Lamp__________100
Sump Pump ½ HP__________800-1050*
Radio / Television__________50-500
Device Running Watts
Battery Charger__________500
Belt Sander - 3"__________1000
Air Compressor - ¼ HP__________975*
Air Compressor - 1 HP__________1600*
Paint Sprayer - Airless__________600*
Table Saw - 10"__________1800*
Quartz Halogen Work Light__________1000
Reciprocating Saw__________960
Circular Saw - 7¼"__________960
Hand Drill__________440
Device Running Watts
Light Bulbs - 60 / 70 Watt__________60/70
Well Pump ½ HP__________1000
Refrigerator / Freezer__________700*
Microwave__________1000
Coffee Maker__________1000
Electric Range__________1200
Radio / Television__________50 - 500
Security System__________500
Computer w/17" Monitor__________800
¼ HP Garage Door__________875
Sump Pump ¼ HP__________800-1050*
Device Running Watts
Radio / CD / DVD Players__________50 - 200
Inflator Pump__________50*
Electric Grill__________1650
Box Fan__________200
Outdoor Light String__________250
Device Running Watts
Space Heater__________1800
Humidifier 13 Gal.__________175
Furnace Fan Blower - ⅓ HP__________700*
Window AC - 12,000 BTU__________3250*
Central AC - 10,000 BTU__________1500*
Central AC - 24,000 BTU__________3800*
Heat Pump__________4700
*
Allow 2 times the listed running watts for starting these devices. These are approximate values only. You should check the appliance for actual ratings.