Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Electrical Home
Home Solar Panel Calculator
Calculate how many solar panels you need to cover your home's electricity usage based on your location's sun hours, panel wattage, and system efficiency. Use it when planning a residential solar installation or getting quotes.
Fill in the required fields to see your result.
Electrical Home
Home Generator Size Calculator
Determine the right generator size (in kilowatts) to keep your home's essential appliances running during a power outage. Use it when planning an emergency generator purchase or sizing a transfer switch installation.
Fill in the required fields to see your result.
Key differences
| Home Solar Panel Calculator | Home Generator Size Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 4 | 5 |
| Result | Panels Needed (panels) | Recommended Generator Size (kW) |
| What it does | Calculate how many solar panels you need to cover your home's electricity usage based on your location's sun hours, panel wattage, and system efficiency. Use it when planning a residential solar installation or getting quotes. | Determine the right generator size (in kilowatts) to keep your home's essential appliances running during a power outage. Use it when planning an emergency generator purchase or sizing a transfer switch installation. |