Power calculator
How much power does your container need?
Start from an example or set the number of appliances yourself. We'll add up the load, the recommended grid connection and the generator size for off-grid sites.
Start from an example
| Appliance | Power | Quantity |
|---|---|---|
| LED light | 12 W | |
| AC ½ HP | 400 W | |
| AC 1 HP | 800 W | |
| AC 1½ HP | 1,200 W | |
| AC 2 HP | 1,800 W | |
| Fan | 45 W | |
| Exhaust fan | 25 W | |
| Laptop | 65 W | |
| Desktop PC + monitor | 200 W | |
| Laser printer (while printing) | 400 W | |
| Hot & cold water dispenser | 350 W | |
| Refrigerator | 120 W | |
| Display chiller | 200 W | |
| Espresso machine | 1,500 W | |
| Microwave | 800 W | |
| Rice cooker | 350 W | |
| LED TV | 80 W | |
| Phone chargers & sockets | 15 W | |
| Water pump | 250 W | |
| Electric water heater | 350 W |
Estimated load with every listed appliance running at once. The grid connection uses a 0.8 power factor and a 20% margin; the generator a 25% margin.
Tips
- Count the appliances that run at the same time at the busiest hour — not every appliance you own.
- Air conditioners, fridges and pumps draw a higher starting current, which is why the generator gets a larger margin.
- Put the AC, sockets and lights on separate circuit breakers so one fault doesn't cut everything.
- Electrical work must be done by a certified electrician and include proper grounding.