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
Generator Sizing Calculator
Calculate the minimum generator wattage needed to power your home's essential loads, motors, and well pump during an outage. Use it before buying a standby or portable generator to avoid under-sizing.
Fill in the required fields to see your result.
Key differences
| Home Solar Panel Calculator | Generator Sizing Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 4 | 5 |
| Result | Panels Needed (panels) | Minimum Generator Size (watts) |
| 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. | Calculate the minimum generator wattage needed to power your home's essential loads, motors, and well pump during an outage. Use it before buying a standby or portable generator to avoid under-sizing. |