Net Metering Calculator

What this does

A net metering calculator shows your net electricity bill with solar — self-consumption first, then export credits against grid imports, with full or reduced export rates.

How to use it

1. Enter your usage and solar production.
2. Enter the retail import rate.
3. Set the export credit rate.
4. Read the net bill.

How it works

Full retail net metering credits exports at the retail rate; many utilities now pay a lower export rate, so set both to compare.

net = imported × retail − exported × export rate

Understanding your result

The export rate is what makes or breaks the economics. Under full retail net metering, exports are worth as much as imports; under the reduced rates many utilities now use, a unit you consume yourself is worth far more than one you export. That is the case for shifting heavy use into daylight hours so your panels offset it directly.

Example

Importing 200 kWh and exporting 150 kWh at a reduced export rate still cuts the bill sharply.