Generator Load & Power Planning Tool
Add the appliances or devices you need to power during an outage. We'll calculate your continuous wattage, peak surge, daily energy consumption, and recommended generator size. You can choose items from the quick list or enter your own specs for exact loads.
Important: Always verify wattages on the appliance nameplate or user manual. Hard-wired equipment and household panels should be reviewed by a licensed electrician before you make permanent generator connections.
Quick Add from Common Appliances
Add Custom Load
Have an appliance that's not in our list? Enter the wattage information from the device label. If surge wattage isn't listed, leave it blank and we'll treat running watts as the peak.
Selected Loads
Add appliances above to start planning. You can adjust wattage, runtime, and quantity for each device to match real-world usage.
Safety & Reference Notes
- Always verify wattage directly from the device label or manual—manufacturers list both running and surge loads.
- For 240 V appliances (well pumps, dryers, HVAC), note that you may need a split-phase generator or dedicated inverter.
- Gasoline and diesel generators should be operated outdoors, well away from doors, windows, and vents. Install CO monitors in occupied structures.
- Lithium-based batteries require proper battery management systems (BMS). Follow OEM charging thresholds to avoid premature failure.
- This tool is meant for planning purposes. Consult qualified professionals for permanent electrical work or life-sustaining medical equipment.