Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Appliance Energy Cost Calculator

Find the true annual running cost of any appliance from its wattage, hours of use, days per week, your electricity rate, and how many units you run — the load solar has to offset.

Appliance power draw (W)

Hours used per day (h)

Days used per week (days)

Electricity price ($/kWh)

Number of identical units (units)

Solar Energy

Net Metering Calculator

Estimate your monthly solar bill under time-of-use net metering. Enter your production, usage, peak/off-peak rates, and connection fee to see exactly what you owe or earn back.

Monthly Solar Production (kWh)

Monthly Energy Usage (kWh)

Peak Rate ($/kWh)

Off-Peak Rate ($/kWh)

Peak Hours Production (%)

Monthly Connection Fee ($)

Key differences

	Appliance Energy Cost Calculator	Net Metering Calculator
Category	Solar Energy	Solar Energy
Inputs required	5	6
Result	Annual running cost ($/yr)	Monthly Net Metering Credit/Cost ($)
What it does	Find the true annual running cost of any appliance from its wattage, hours of use, days per week, your electricity rate, and how many units you run — the load solar has to offset.	Estimate your monthly solar bill under time-of-use net metering. Enter your production, usage, peak/off-peak rates, and connection fee to see exactly what you owe or earn back.