Solar & battery
Solar Net Metering Calculator
What exported solar earns under net metering, and how much a change to the credit rate costs you.
Result
Net metering rules are set state by state and utility by utility, and many have moved from full retail credit toward avoided cost or net billing. Grandfathering terms vary and are rarely permanent. The factors here are illustrative bands, not your tariff.
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About this calculator
What is the difference between net metering and net billing?
Net metering credits exports at or near the retail rate, effectively spinning the meter backwards. Net billing pays a lower wholesale-style rate for exports while you still buy at retail, which makes self-consumption and batteries far more valuable.
How do I raise self-consumption?
Shift flexible loads into daylight hours, run the dishwasher, laundry and EV charging during the day, or add storage. Each point of self-consumption is worth the gap between retail and export rates.
The formula
value = self-used kWh x retail + exported kWh x retail x credit factor
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