Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Solar Energy
Solar Financing Comparison Calculator
Compares the true monthly net cost of financing a solar installation with a loan versus the monthly savings it generates, helping you decide whether to pay cash, take a loan, or lease. Use it at the point-of-sale when evaluating installer quotes.
Fill in the required fields to see your result.
Solar Energy
Optimal Solar Panel Angle Calculator
Estimates the optimal fixed tilt angle for a solar panel based on your latitude and the season you want to optimize for. Useful for fixed-tilt mounting decisions, seasonal-adjustment planning, and rough-design sizing for off-grid systems.
Fill in the required fields to see your result.
Key differences
| Solar Financing Comparison Calculator | Optimal Solar Panel Angle Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Inputs required | 4 | 2 |
| Result | Net Monthly Cost (Loan) ($) | Optimal Tilt Angle (degrees) |
| What it does | Compares the true monthly net cost of financing a solar installation with a loan versus the monthly savings it generates, helping you decide whether to pay cash, take a loan, or lease. Use it at the point-of-sale when evaluating installer quotes. | Estimates the optimal fixed tilt angle for a solar panel based on your latitude and the season you want to optimize for. Useful for fixed-tilt mounting decisions, seasonal-adjustment planning, and rough-design sizing for off-grid systems. |