Utility & Grid
Net Metering vs Net Billing: How Solar Export Credits Affect Savings
Understand the difference between net metering and net billing, why exported solar may be worth less than electricity you use at home, and which utility questions matter.
Quick answer
Net metering and net billing are utility billing structures for solar customers. The key question is how a utility values electricity you export compared with electricity you buy, because that difference can strongly influence system size, battery value, and savings.
Solar has two possible values
A kilowatt-hour used immediately in the home can avoid buying a kilowatt-hour from the utility. A kilowatt-hour exported later may receive a different credit. A useful savings model shows both values instead of assuming every solar kWh is equal.
Net metering and net billing are not interchangeable
Under some net-metering arrangements, exported energy can receive a credit tied closely to retail electricity pricing. Net-billing arrangements may compensate exports at a lower or time-varying value. Names and details vary by utility and state.
Usage timing changes the result
Households that use more electricity while panels are producing may capture more direct value. Shifting flexible loads, using smart controls, or evaluating storage may matter more where export compensation is lower.
Verify the tariff before signing
Read the current utility tariff and interconnection documents for your address. Ask the installer to identify the exact rate plan, export assumption, fixed charges, and grandfathering claim used in the proposal.
Frequently asked questions
Is net metering available everywhere?
No. Utility rules and compensation methods vary by location and can change over time.
Why might a battery help under net billing?
A battery can store some daytime production for later home use rather than exporting it at a lower credit, but its cost and backup value still need separate analysis.
Can I choose a utility rate plan after solar?
Possibly, depending on your utility. Compare complete rate structures, including fixed charges and time-of-use periods.
Primary sources
This guide was written for homeowners and reviewed against the following government and research resources. Programs and utility rules can change, so verify current details before making a financial decision.