A 15000-watt generator can be used for a variety of purposes and can power many devices, but can it power your desired equipment? If you are going to buy a new one, or already own one and want to know what it can run.
A 15000-watt generator is a powerful machine which can power almost any appliance. It is best for construction sites, Home backups, RV, food trucks, Cabins, Job sites, welding, outside sports, outdoor entertainment, and more.
Further next in this article, we listed single devices along with their starting and running watts. We also make different combinations of devices with wattage tables, which you can use together with a 15000-watt generator. We made all calculations on the basis of starting watts of the generator.
Before going further deep some preliminaries are necessary for better understating, what we are discussing.
Read: Cost of 15000 Watt generator
Read: What will a 5000-watt generator can run
Preliminaries
Either you should power a single device or a combination of devices but their combined power in terms of starting watts should not surpass 14,950 watts.
Starting Watts
Basically, a device needs extra power for starting, which is referred to as starting watts.
Running Watts
For the device to run smoothly, it requires a relatively stable amount of electricity (called running watts).
Single PowerFul Devices

Here are the single large appliances along with starting and running watts, that can be used with a 15000-watt generator.
Devices | Running Watts | Starting Watts |
---|---|---|
Refrigerator | 700W | 1500W |
Sump Pump 2HP | 2300W | 4000W |
Airless Sprayer 1 HP | 1800W | 3600W |
Furnace Fan Blower 1HP | 1600W | 4700W |
Halogen Lamp 300-1000 | 300-1000W | 300-1000W |
Steam Iron | 2000W | 2000W |
Washing Machine | 1000W | 1700W |
Microwave Oven | 1000W | 1000W |
Coffee Maker | 900W | 900W |
Coffee Grinder | 700-1200W | 700-1200W |
Dishwasher | 1500W | 1500W |
Toaster | 850W | 850W |
Bread Maker | 800W | 800W |
Hair Dryer | 1250W | 1250W |
Hair Roller | 400W | 400W |
Heat Gun | 1800W | 1800W |
Juicer | 800W | 800W |
Mixer | 750W | 750W |
Planner | 950W | 950W |
Electric Grill | 1400W | 1400W |
Air Fryer | 1500W | 1500W |
Well Pump | 2000W | 3500W |
Water Heater | 2000W | 3000W |
Welder (250A) | 8000-12000W | 8000-12000W |
Combinations Of Devices that can be operated together
Here we listed some basic possible combinations of devices that can be operated on the 15000-watt generator simultaneously, and similarly you can also make your own combination by adding watts of desired appliances both in terms of the surge and running.
1st Combination
The first basic combination of appliances is a Refrigerator, 2 x fans, 3 x lights, a 2-ton air conditioner, a steam iron, a microwave oven, a washing machine, Cloth Dryer, a dishwasher, a juicer, a humidifier, a hair dryer, and a laptop charging that needs approximately 13625W as surge watts and 11115W as running.

Devices | Running Watts | Starting Watts |
---|---|---|
1.5-ton Air Conditioner | 1600W | 2600W |
Refrigerator | 700W | 1500W |
3 x Light | 75×3 = 225W | 75×3 = 225W |
4 x Fan | 100×3 = 300W | 100×3 = 300W |
Laptop | 25W | 25W |
Steam Iron | 2000W | 2000 |
Microwave Oven | 1000W | 1000W |
Washing Machine | 1000W | 1700W |
Dryer | 540W | 1350W |
Dishwasher | 1500W | 1500W |
HumidFier 13 Gal | 175W | 175W |
Juicer | 800W | 800W |
Hair Dryer | 1250W | 1250W |
Total | 11115W | 13625W |
2nd Combination
The second combination of appliances is 5 x fans, 5 x lights, hair straightener, hair crimper, hair roller, 2-ton air conditioner, refrigerator, massage chair, coffee maker, iron, computer, and shaving machine that needs approximately 8125W as surge watts, and 6325W as running.

Devices | Running Watts | Starting Watts |
---|---|---|
Refrigerator | 700W | 1500W |
2-ton air conditioner | 1600W | 2600W |
Coffee Maker | 900W | 900W |
5xLight | 75×5 = 375W | 75×5 = 375 |
4xFan | 100×5 = 500W | 100×5 = 500W |
Hair Crimper | 100W | 100W |
Hair Roller | 400W | 400W |
Hair Straightener | 150W | 150W |
Shaving Machine | 100W | 100W |
Massage Chair | 250W | 250W |
Iron | 1000W | 1000W |
Computer | 250W | 250W |
Total | 6325W | 8125W |
3rd Combination
The third basic combination of appliances is a refrigerator, 2-ton air conditioner, 4 x fans, 3 x lights, 4 x sewing machine, 4 x embroidery machine, 4 x overlocking machine, and one iron that needs approximately 7300W as surge watts, and 5500W as running.

Devices | Running Watts | Starting Watts |
---|---|---|
Refrigerator | 700W | 1500W |
2-ton air conditioner | 1600W | 2600W |
4xLight | 75×4 = 300W | 75×4 = 300W |
3xFan | 100×3 = 300W | 100×3 = 300W |
Sewing Machine | 100×4=400W | 400W |
Embroidery Machine | 200×4=800W | 800W |
Overlocking Machine | 100×4=400W | 400W |
Iron | 1000W | 1000W |
Total | 5500W | 7300W |
4th Combination
The fourth basic combination of appliances is 1xfans, 1xlights, a drill machine, a screwdriver, a planner, a grinder, Airless Sprayer – 1/3 HP, a belt sander, and a circular saw that needs approximately 6825W as surge watts and 6015W as running.

Devices | Running Watts | Starting Watts |
---|---|---|
1xLight | 75W | 75W |
1xFan | 100W | 100W |
Electric Drill – 3/8” | 440W | 600W |
Screw Driver | 350W | 400W |
Airless Sprayer – 1/3 HP | 600W | 1200W |
Planner | 750W | 750W |
Grinder | 800W | 800W |
Circular Saw | 1300W | 1300W |
Belt Sander | 800W | 800W |
Jig Saw | 800W | 800W |
Total | 6015W | 6825W |
Situations In Which 15,000 Watt generator is best
A 15,000-watt generator can be used for various purposes, some of which we discuss below.
Welder

Welding machines whose current is up to 250A, need 14,000W of energy for their smooth operation. Generators for welding machines are needed when we have to do welding at a remote location.
Food Truck

A generator for the food truck business is necessary because we need a microwave oven, air conditioner, toaster, coffee maker, coffee grinder, blender, refrigerator, lights, air fryer, dishwasher, bread maker, juicer, and mobile charger which together draw 11275 starting watts and 10425 running watts.
Devices | Running Watts | Starting Watts |
---|---|---|
Microwave Oven | 1000W | 1000W |
1.5-ton Air Conditioner | 1200W | 2000W |
Toaster | 850W | 850W |
Coffee Maker | 900W | 900W |
Coffee Grinder | 800W | 800W |
Air Fryer | 1500 | 1500 |
Blender | 800W | 25W |
UnderCounter Refrigerator | 300W | 600W |
Mobile | 25W | 25W |
Dishwasher | 1500W | 1500W |
Bread Maker | 800W | 800W |
Juicer | 800W | 800W |
Total | 10425W | 11275W |
Cabin

For a cabin, we have lights, fans, an air conditioner, a refrigerator, a blender, a washing machine, a dishwasher, a steam iron, Microwave Oven, a laptop, and a phone, which draws 10,225 starting watts and 8525 running watts.
Devices | Running Watts | Starting Watts |
---|---|---|
2 Ton Air Conditioner | 1600W | 2600W |
1xLight | 75W | 75W |
1xFan | 100W | 100W |
Refrigerator | 300W | 750W |
Coffee Maker | 900W | 900W |
Microwave Oven | 1000W | 1000W |
Washing Machine | 1000W | 1700W |
Steam Iron | 2000W | 2000W |
Dishwasher | 1500W | 1500W |
Phone | 25W | 25W |
Laptop | 25W | 25W |
Total | 8525W | 10,225W |
Construction Site

For the construction we need a drill, screwdriver, grinder, heat gun, Circular saw, belt sander, planner, well pump, and Jig Saw, which draws 9850 starting watts and 8190 running watts.
Devices | Running Watts | Starting Watts |
---|---|---|
Electric Drill – 3/8” | 440W | 600W |
Screw Driver | 300W | 300W |
Heat Gun | 1000W | 1000W |
Grinder | 800W | 800W |
Circular Saw | 1300W | 1300W |
Belt Sander | 800W | 800W |
Planner | 750W | 750W |
Jig Saw | 800W | 800W |
Well Pump | 2000W | 3500W |
Total | 8190W | 9850W |
Personal Office

In a personal office, we need a computer or laptop, refrigerator, air conditioner, printer, wifi router, television, fans, cameras, photocopier and lights, which draw 7050 starting watts and 6050 running watts.
Devices | Running Watts | Starting Watts |
---|---|---|
Computer | 250W | 250W |
Refrigerator | 700W | 1500W |
2-ton Air Conditioner | 1600W | 2600W |
Printer | 900W | 900W |
Wifi Router | 15W | 15W |
Fan | 100W | 100W |
Lights | 75W | 75W |
Camera | 10W | 10W |
PhotoCopier | 1600W | 1600W |
Television | 65W | 65W |
Total | 6050W | 7050W |
Outdoor Concert

For outdoor concerts, we need lighting and sound equipment which required almost 9000 watts of power.
Devices | Running Watts | Starting Watts |
---|---|---|
Lighting | 4000W | 4000W |
Sound System | 5000W | 5000W |
Total | 9000W | 9000W |
Home Backup Power

In a home, we need a Refrigerator, fans, lights, an air conditioner, a steam iron, a microwave oven, a washing machine, a cloth dryer, a dishwasher, a juicer, a humidifier, and a laptop charging that needs approximately 12,575W as surge watts and 9465W as running.
Devices | Running Watts | Starting Watts |
---|---|---|
1.5-ton Air Conditioner | 1200W | 2000W |
Refrigerator | 700W | 1500W |
3 x Light | 75×3 = 225W | 75×3 = 225W |
4 x Fan | 100×3 = 300W | 100×3 = 300W |
Laptop | 25W | 25W |
Steam Iron | 2000W | 2000 |
Microwave Oven | 1000W | 1000W |
Washing Machine | 1000W | 1700W |
Cloth Dryer | 540W | 1350W |
Dishwasher | 1500W | 1500W |
HumidFier 13 Gal | 175W | 175W |
Juicer | 800W | 800W |
Toaster | 850W | 850W |
Total | 10315W | 13425W |
Conclusion
The 15000-watt generator can be used for many situations such as construction sites, Home backups, RV, food trucks, Cabins, Job sites, welding, outside sports, outdoor entertainment, and more. It almost can power any single device.
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