By Ethan BrooksUpdated November 2026
Net metering for solar power is the arrangement most homeowners hear about first, and for good reason: your utility gives you a one-to-one credit for each kilowatt-hour your panels send back to the grid. Net billing is the newer alternative in many states, where exported power is paid at a lower, time-varying rate. For most homeowners in a state that still offers full retail net metering, that option wins. For homes in a net billing state, or those with lots of daytime exports and expensive-to-buy evening power, a battery paired with a net billing contract can close the gap.
Comparison at a Glance
| Criterion | Net Metering for Solar Power | Net Billing |
|---|---|---|
| How exported power is credited | Credited at or near your retail rate, usually as kWh credits | Credited at an avoided-cost or time-of-day export rate, usually set lower |
| Credit rollover | Monthly kWh credits roll forward, often with an annual true-up | Dollar credits or exports settled on the bill each cycle |
| Effect of time of day | Usually minimal; a kWh is a kWh | Large; midday exports can be worth far less than evening imports |
| Battery value | Modest, mainly for backup and self-consumption | High, because storing midday power for evening use avoids low export rates |
| Payback sensitivity | Less sensitive to system orientation or usage timing | More sensitive to orientation, load shape, and rate design |
| Best fit | Homes in states with full retail credit programs | Homes in states that have moved to net billing or time-of-use export rates |
Credit Value: Which Option Pays More Per kWh Exported?
Winner: net metering for solar power.
Under a traditional net metering program, the power your system sends to the grid is valued at close to what you pay for power you draw from it. If your retail rate is 18 cents per kWh and your panels export 300 kWh in a month, that export offsets roughly 300 kWh of your usage at the same rate. Many programs apply credits to your total kWh consumption and production in each billing period, so the math is simple to check on your statement.
Net billing changes that math. Exports are typically valued at an avoided-cost rate, which reflects what the utility would otherwise pay to generate or buy that power. These rates are often lower than retail and can be much lower during midday hours when solar output is high across the grid. A homeowner exporting heavily at noon may see a noticeably smaller credit than the same energy would have earned under full retail net metering.
If you are comparing offers, check two numbers on the utility tariff: the export rate and whether it varies by hour. A flat export rate close to retail behaves much like net metering. A time-varying export rate that drops sharply in the afternoon behaves like net billing, even if the program name sounds similar. For a worked example of how credits flow through a bill, see Solar Net Metering Bill Example PDF: How to Read Yours Step by Step.
Bill Rollover and Credit Timing: Which Option Is Easier to Manage?
Winner: net metering for solar power, with a caveat.
Most net metering programs let kWh credits carry forward from month to month. If you export more than you use in spring, those credits can offset your bill in cloudy winter months. Many programs then run an annual true-up, where any remaining credits are either paid out at a set rate or reset. The exact rules vary, and the rollover period can be a meaningful factor for homes with strongly seasonal usage. Our guide on Solar Net Metering Requirements: What You Need to Qualify (Step-by-Step) covers the eligibility and reporting side of these programs.
Net billing often settles exports in dollars each billing cycle. That can be simpler to understand, but it can also mean less carryover value in months when exports are high and bills are low. Some utilities pay a small balance out in cash at the end of the year, while others apply it as a credit that expires. Read the settlement section of your tariff carefully before assuming your surplus will be stored.
The caveat is that rollover rules are where programs differ most. A net metering program with generous monthly rollover but a harsh annual reset can be less valuable than a net billing program with a short, predictable settlement cycle, depending on your load. Model both against your last twelve months of bills.
Time-of-Day Sensitivity: Which Option Handles Peak Pricing Better?
Winner: net billing, but only when paired with storage.
Solar panels produce most of their energy around midday, while many homes use the most electricity in the evening. Under full net metering, the time of export barely matters, because every kWh earns about the same credit. That keeps the system simple but also means you gain no extra value from storing energy for peak hours.
Net billing rewards you for doing exactly that. If the utility pays 6 cents per kWh at noon and charges 30 cents per kWh at 7 p.m., a battery that shifts midday production into the evening can be worth far more than exporting it. The gap between export and import rates is what drives payback, and it is the reason net billing is often paired with batteries in new installations. Without storage or a load that matches solar output, the time-of-day structure can quietly reduce your savings.
Shifting loads helps too. Running dishwashers, laundry, and pool pumps during peak production hours means less power exported at low rates and less imported at high rates. This is a practical advantage for net billing customers who can move their usage.
Battery Compatibility: Which Option Makes Storage Pay Off?
Winner: net billing.
Under net metering for solar power, a battery mainly adds backup power during outages and can modestly increase self-consumption. Because exports already earn close to retail, storing energy does not unlock a large additional spread, so batteries often have a longer payback unless backup is a priority.
Under net billing, a battery’s value depends on the spread between export and import rates. Owners who charge the battery from midday solar and discharge it during the evening peak can capture that spread every day. Many also use batteries to reduce demand charges where the tariff includes them. Battery sizing matters here: an undersized battery leaves value on the table, while an oversized one may sit idle. Your installer or utility interconnection team can model the export and import curves for your specific tariff.
Any battery connected to the grid has to meet interconnection and safety rules, so confirm requirements with your utility before purchasing equipment.
Installation and Interconnection: Which Option Is Simpler to Set Up?
Winner: net metering for solar power.
Most net metering programs have well-established interconnection processes, standard meter arrangements, and familiar application forms. Many utilities use a bidirectional meter that tracks imports and exports, and once approved, the system generally runs without extra metering equipment.
Net billing can require more complex metering or time-of-use interval data, especially if the export rate varies by hour. Some utilities also ask for additional studies or equipment for storage systems. Timelines can be longer, and the paperwork more involved. If you plan to add a battery later, ask the utility whether the initial interconnection application will cover it or whether a separate review is needed. For a general sense of how the program works from start to finish, see Net Metering Solar Program: How It Works and How to Get Credited.
Long-Term Value: Which Option Holds Up Over Time?
Winner: depends on your rate design, but net metering for solar power is more predictable.
Net metering has been the default in many states for years, and its credit structure tends to stay stable while the program remains open. That predictability helps with long-range budgeting. Policy changes do happen, and some programs have been closed to new customers or moved toward net billing, so check whether your utility has a grandfathering rule for existing systems.
Net billing values are set by the utility or regulator and can change more often as avoided-cost studies are updated. Owners with batteries and flexible loads may do well over time, but those with little ability to shift usage may see smaller returns than projected. Check your state’s current policy, since programs are being revised across the country. A recent overview of policy changes is available in Net Metering News Today: What Changed and How It Affects Your Solar Bill.
Which Should You Choose?
Choose net metering for solar power if:
- Your state or utility still offers full retail or near-retail monthly credits.
- Your usage is fairly even across the day, or you cannot easily shift loads.
- You want a simpler interconnection process and predictable credits.
- You are not planning to add a battery in the near term.
Choose net billing if:
- Your utility has moved to a net billing or time-of-use export tariff.
- You plan to install a battery and can charge it from midday solar.
- Your evening usage is high and your utility’s peak import rates are significantly above its export rates.
- You can run major appliances during solar production hours.
Many homeowners end up with a mixed case: a utility that offers net metering but with a time-varying export component, or a net billing tariff where batteries make the numbers work. For those homes, a site-specific analysis from an installer or energy consultant is worth the time. A licensed electrician or installer should also review any system changes before they are made.
Recommended Products for Each Option
Both options depend on the same core equipment, so the product choice is mostly about system size and whether you add storage. The listings below are examples; confirm compatibility with your inverter and utility before buying.
Net metering for solar power (grid-tied inverter): A standard string or microinverter setup works well here. Consider a grid-tied inverter such as the SolarEdge SE7600H-US for a single-phase home, paired with a common monitoring app so you can track exports against your bill.
Net billing (inverter plus battery): Net billing customers who plan to shift usage typically pair the inverter with a home battery. The Tesla Powerwall 3 is a widely known option for whole-home backup and self-consumption, and the Enphase IQ Battery is another established choice for systems with Enphase microinverters.
FAQ
Is net metering for solar power the same as net billing?
No. Net metering usually credits exported power at or near your retail rate, often as kWh credits that roll forward. Net billing values exports at a separate, typically lower rate, which can vary by time of day. The program name can differ from state to state, so read the tariff.
Does net metering for solar power still exist in every state?
No. Availability depends on your state and utility, and programs have been changing. Some utilities have closed net metering to new customers or shifted to net billing. Check your utility’s current policy before designing a system.
Which option is better if I want a battery?
Net billing usually gives batteries more value, because storing midday solar for evening use can capture the gap between export and import rates. Under net metering, the battery mainly adds backup and modest self-consumption benefits, so the payback is often longer.
Do I need a special meter for either option?
Most homes use a bidirectional meter that records both imports and exports. Net billing with time-of-use export rates may require interval metering. Your utility will specify the meter type during interconnection review.
Should I talk to a professional before choosing?
Yes. Rate structures, interconnection rules, and battery safety requirements are complex and change over time. A licensed electrician, solar installer, or energy consultant can model your specific tariff and usage. Confirm all electrical work meets local code.
Conclusion
Net metering for solar power remains the simpler and more predictable choice in states that still offer full-value credits, especially for homes without storage plans. Net billing can work well for owners who pair solar with a battery and can shift their usage to match export and import rates. Start by pulling your utility’s current export rate, comparing it to your peak import rate, and deciding whether storage fits your budget and goals. That single comparison will tell you more than any general rule.
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About Ethan Brooks
Ethan Brooks is part of our editorial team and reviews and edits our home solar guides, checking product details against manufacturer specifications and owner feedback.
