California Net Metering Program (2026): Which Should You Choose?

By Claire Whitaker

Updated November 2026

The california net metering program now comes in more than one form, and the right choice depends mostly on when you interconnect your system and how much of your power you plan to use at night. Homeowners who installed or applied before the April 2023 switch to net billing usually stay on the older credit structure, while newer systems fall under the newer export-based rules. This comparison looks at the two main paths side by side so you can see which one fits your roof, your usage pattern and your plans for battery storage.

Quick Comparison: Legacy Net Metering vs. Net Billing (NEM 3.0)

Both options allow you to send surplus solar power to the grid, but they credit that power very differently. Before you compare the details, it helps to know that the rules are set by the California Public Utilities Commission and applied by your local utility, so the exact figures you see on your bill will reflect your utility’s tariff schedule.

Credit Structure: Which Option Gives Better Export Value?

Winner: Legacy net energy metering. Under the original structure, each kilowatt-hour you export generally offsets one kilowatt-hour you import later, which makes exports worth close to the full retail rate. Under net billing, the value of exports is tied to hourly avoided-cost rates. Midday exports, when the grid is flooded with solar, often pay far less than what you pay for power at 7 p.m. That gap is the core reason many installers now design systems around self-consumption rather than surplus generation.

If you are still on the legacy program, keep your interconnection paperwork and avoid changes that could reset your eligibility. Some system expansions can trigger a re-evaluation, so check with your utility before adding panels. For a deeper look at how credits are tracked, see Net Metering in California: How It Works and What Homeowners Need to Know.

Billing Predictability: Which Option Is Easier to Forecast?

Winner: Legacy net energy metering. Because legacy credits roll over monthly and offset usage on a kilowatt-hour basis, the bill is relatively steady when your system is sized correctly. Net billing introduces more variation, since bills depend on when power flows in and out of the house. Homeowners often report that their first few net billing bills surprised them, particularly in winter months when solar output drops and evening usage rises.

Many people on net billing find that a battery and a time-of-use rate plan make the bill far easier to predict. A detailed guide to one utility’s approach is available in Southern California Edison Net Metering: Step-by-Step Guide for Homeowners, which walks through how exports and imports appear on the statement.

Battery Compatibility: Which Option Works Better With Storage?

Winner: Net billing. Under net billing, a battery is not a luxury. It lets you store midday solar and discharge it during the expensive evening window, which is exactly when your retail import cost is highest. Legacy net metering systems can add batteries too, but the financial case is weaker because exports already earn a good credit, so there is less incentive to shift energy in time.

When sizing a battery for net billing, many installers start by looking at your evening load from roughly 4 p.m. to 9 p.m. and then add a margin for cloudy days. Batteries are typically rated in kilowatt-hours of usable capacity, and manufacturers specify depth-of-discharge limits that affect how much of that rating you can actually use. Check those specifications before comparing quotes.

Eligibility and Enrollment: Which Option Is Simpler to Join?

Winner: Net billing, for new systems. Since the switch, new residential solar customers are enrolled in net billing by default when they interconnect. There is no separate application for the legacy program if you are installing today. Legacy enrollment depended on the interconnection date, so the process is effectively closed for new homeowners. If you are unsure which tariff applies to your address, your utility’s interconnection department can confirm it before you sign a contract.

Homeowners outside California sometimes compare these rules with programs in other states. For example, Net Energy Metering in California vs Net Billing: Which Should You Choose? goes deeper into the terminology, and Net Metering Program Florida vs Standard Grid Export: Which Should You Choose? shows how a different state handles similar trade-offs.

Grandfathering and Transfer Rules: Which Option Lasts Longer?

Winner: Legacy net energy metering, for existing customers. Systems interconnected before the cutoff generally keep their legacy terms for the life of the system, and in many cases those terms can carry over if you sell the home, as long as the system stays in place and the new owner accepts the interconnection agreement. Net billing customers have no such protection for the rate structure, because the tariff itself can be revised by regulators over time.

If you are buying a home with solar already installed, ask the seller for the interconnection date and the utility account history. That single document tells you which program applies. The broader question of whether your credits can be carried forward is covered in Net Metering Solar Program: How It Works and How to Get Credited.

Which Should You Choose?

The answer depends less on which program sounds better and more on when you install, how you use electricity, and whether you plan to add storage. Here is a practical way to decide:

• Choose legacy net energy metering if your system was interconnected before April 15, 2023, you use most of your power during the day, and you want predictable one-to-one credits.
• Choose net billing if you are installing a new system, you plan to add a battery, and you can shift most of your usage into the midday solar window.
• Choose a battery-first net billing design if your evening usage is high, such as for heat pumps, EV charging or a home office running late, because avoiding retail-rate imports matters most.
• Stay on legacy terms if you are happy with your current credits and expanding the system could put your grandfathered status at risk.
• Consider a smaller system if your daytime usage is modest, since oversizing under net billing mainly sends power out at low export rates.

Recommended Products for Each Option

The hardware you pick should match the program you are on. Net billing homes often pair solar panels with a battery and a hybrid inverter that can manage charging and discharging. Legacy homes may only need a standard grid-tied inverter.

For a battery designed to support net billing homes, the View on Amazon is one of the most widely known home batteries. For a hybrid inverter that can manage solar, battery and grid flow, the View on Amazon is a common choice among DIY-oriented installers. Legacy net metering systems frequently use a simpler grid-tied unit such as the View on Amazon, which does not require battery management.

Always confirm that any equipment is approved for interconnection with your utility and listed for grid-tied operation. Electrical work carries real safety risks, so consult a licensed electrician or solar professional before making connections.

FAQ

Can I switch from net billing back to legacy net metering?

Generally no. Eligibility for legacy terms is tied to the interconnection date of the original system. Adding a new system or significantly changing an existing one may be treated as a new interconnection under current rules, so confirm the details with your utility first.

Do I need a battery to make net billing worthwhile?

Not always, but a battery makes the economics much stronger. Without storage, you export midday power at lower rates and buy it back in the evening at retail, which can narrow the benefit of solar. Homes with low evening usage may still do well without one.

How are my net billing exports valued on my bill?

Exports are valued using time-based rates set in your utility’s tariff. Those rates change by hour and season, and they are typically lower during the midday period when solar output is highest. Your monthly statement shows export and import totals separately, which helps you see the balance.

Does moving to a new home affect my net metering status?

In many cases, the system can stay with the property and the new owner can take over the existing agreement, but the paperwork must be updated with the utility. Check the current transfer requirements before you close, since the process can take several weeks.

Where can I get an official answer about my specific tariff?

Your utility’s solar or interconnection department is the best source for account-specific questions. The California Public Utilities Commission publishes the governing decisions and tariff framework. For tax, legal or contract questions, consult a qualified professional before making decisions.

Conclusion

For most people installing solar today, the california net metering program means net billing, and the winning strategy is a system designed around self-consumption and storage. Homeowners who are still on legacy terms should protect that status and think carefully before expanding their system. Start by confirming your interconnection date, estimate your daytime and evening usage, and then decide whether a battery belongs in your plan. A clear answer to those three questions will tell you which side of the comparison fits your home.

About Claire Whitaker

Claire Whitaker is part of our editorial team and reviews and edits our home solar guides, checking product details against manufacturer specifications and owner feedback.