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Both calculators run independently β change the inputs on either side to compare results.
Solar Water Heater Savings Calculator
Estimates annual energy savings from a solar water heater based on household size, fuel type, solar fraction. Use it when comparing solar thermal to conventional water heating costs.
Annual Savings
668.14 $
167.04: $140-220/person is typical when replacing electric resistance heating (2.8 factor), the most expensive fuel to offset and the fastest payback.
This is annual water-heating savings per person; per-capita savings depend heavily on displaced fuel, since electric resistance heating costs far more than gas to offset.
Solar Net Metering Savings Calculator
Calculates your annual savings from net metering by comparing solar production to consumption and valuing surplus energy sold back to the grid. Best used when evaluating a new solar system's financial return.
Key differences
| Solar Water Heater Savings Calculator | Solar Net Metering Savings Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Inputs required | 3 | 5 |
| Result | Annual Savings ($) | Annual Savings ($) |
| What it does | Estimates annual energy savings from a solar water heater based on household size, fuel type, solar fraction. Use it when comparing solar thermal to conventional water heating costs. | Calculates your annual savings from net metering by comparing solar production to consumption and valuing surplus energy sold back to the grid. Best used when evaluating a new solar system's financial return. |