By Claire WhitakerUpdated November 2026
LADWP net metering rates decide how much your rooftop solar exports are worth on the bill from the Los Angeles Department of Water and Power, so the choice between staying on the legacy net metering arrangement and moving to a newer export structure matters more than most homeowners expect. In short, a home that exports little and uses most of its own solar will do fine under either option, while a home with a large system that sends a lot of power back to the grid should look closely at how each credit is calculated before committing.
Comparison Table at a Glance
| Criterion | Legacy Net Metering | Newer Export Credit Structure |
|---|---|---|
| How exports are credited | Exported kWh offset imported kWh one for one, usually over a billing period | Exports are valued at a separate, time-based export rate |
| Credit timing | Monthly or annual true-up, depending on account terms | Credits tied to when the energy is delivered |
| Best fit for high daytime exporters | Strong, since midday exports offset evening use | Depends heavily on the export rate in your time window |
| Best fit for self-consumption homes | Good, with little exported power to value | Good, and battery storage can shift exports to peak hours |
| Rate predictability | Stable structure once you are enrolled | Rates can change with utility filings |
| Paperwork and interconnection | Standard application and inspection | Similar process, plus any added metering requirements |
Credit Value per Exported Kilowatt-Hour
The most important number for any solar household is what one exported kilowatt-hour is worth. Under the legacy arrangement, each exported kWh generally cancels out one kWh you would otherwise buy from the utility, which makes its value close to the retail rate you pay for electricity in that tier. That is a generous outcome for households that send a lot of power out at midday.
Under the newer export structure, the value of an exported kWh is set separately, and it is often lower than the retail rate during many hours. Your export credit therefore depends on when your panels push power to the grid. Check the current LADWP tariff sheets for the exact numbers, because export values are revised through regulatory filings.
Winner for most exporters: legacy net metering, as long as your account remains eligible. If your system produces far more than your home uses in daylight hours, the one-for-one offset is hard to beat.
Bill Timing and Credit Rollover
How quickly credits are applied affects the cash you see each month. Under net metering, surplus kilowatt-hours typically roll forward as a credit balance on your account. Many owners report that a large spring surplus can cover higher summer bills, which smooths out seasonal swings. Be aware that unused balances at the end of a true-up period may be settled at a lower rate, so the timing rules in your agreement matter.
Time-based export structures reward you for exporting at the right hours, which can be an advantage if you add a battery and discharge during evening peaks. Without storage, a time-based export credit can leave midday production worth less than you expect. For a detailed look at why bills still climb despite solar, see Why Is My Net Metering Electricity Bill Still High? 6 Causes and Fixes.
Winner for simple, predictable crediting: legacy net metering. The rollover is easy to track on a monthly statement.
Eligibility and System Size Limits
Eligibility rules determine which structure you can actually use. Generally, the system must be sized to roughly your past annual consumption, interconnect under the utility’s rules, and meet safety and equipment standards. Larger systems may face limits on total enrollment capacity, and homes that exceed those limits may be pushed toward a different export structure. If you are considering oversizing, read about how caps work in What Is Net Metering Cap? A Homeowner's Guide to Limits (2026).
Newer structures often come with stricter technical requirements, such as additional metering or communication equipment, which can add time to the interconnection process. The legacy arrangement is typically simpler for a standard residential system.
Winner for ease of qualifying: legacy net metering, provided your system was approved under those terms.
Battery Compatibility and Self-Consumption
A battery changes the math. Under time-based export credits, a battery lets you hold midday energy and export or use it during higher-value hours. Under legacy net metering, a battery mainly helps you avoid buying power during expensive periods and offers backup during outages. Hybrid inverters with net metering support are widely sold, and you can compare options in Top 7 Hybrid Inverters with Net Metering Options for Homeowners.
If your home uses most of its solar directly, the export structure matters less, and a battery sized for evening use may deliver the most value regardless of which crediting method you hold.
Winner for battery owners: depends on the export schedule. A time-based structure can reward storage, while legacy net metering pairs well with self-consumption.
Long-Term Rate Stability and Regulatory Risk
Solar owners often plan around a payback period of many years, so the risk of future rule changes deserves attention. Legacy net metering has been in place for years, and enrolled customers generally keep the terms they signed up for, subject to the rules in effect at interconnection. Newer export rates are set through periodic regulatory decisions, so the value of your credits could shift.
For context on how other states have handled similar transitions, Washington State Net Metering (2026): Which Is Better for Homeowners? and Solar Net Metering Requirements: What You Need to Qualify (Step-by-Step) offer useful comparisons. Always confirm current terms with LADWP, since utility programs change.
Winner for stability: legacy net metering, with the caveat that enrollment rules must be checked for your specific account.
Application Process and Getting Credited
Whichever structure applies, you will need a complete interconnection application, equipment specifications, and an inspection before the system is switched on. Approval timelines vary, and incomplete paperwork is a common cause of delay. The step-by-step process is covered in LADWP Solar Net Metering: How to Apply and Get Credited Step by Step.
After installation, review your first few bills closely. Confirm that exported kilowatt-hours appear on the statement, that credits roll over as expected, and that the correct meter is recorded. Small mismatches are easier to fix early.
Winner for a smooth start: the structure your installer already knows well, since familiarity with local paperwork speeds approval.
Which Should You Choose?
The right choice depends on how your home uses solar power. Use these guidelines to narrow it down:
- Choose legacy net metering if your system exports a large share of its output in daylight and you want a one-for-one offset that is easy to track.
- Choose the newer export structure if you plan to add a battery and can shift exports to higher-value evening hours.
- Choose a self-consumption design if your household uses most of its daytime production, since export value matters less.
- Stay on legacy terms if you are already enrolled and the rules have served you well, because switching usually cannot be undone.
- Re-evaluate if you are adding significant capacity, moving, or changing your daily electricity habits.
Recommended Equipment
Your crediting structure is only as good as the hardware that produces and measures the power. Consider these options when planning:
- Hybrid inverter with battery-ready design: View on Amazon
- Monitoring gateway for tracking exports: View on Amazon
- Lithium battery module for evening shifting: View on Amazon
Confirm that any equipment you buy is listed as compatible with LADWP interconnection requirements before installation.
FAQ
What are LADWP net metering rates based on?
They are based on the value assigned to exported kilowatt-hours under the utility’s approved tariff for your account type. Under legacy net metering, exports generally offset imports directly. Under newer structures, export values may be set separately by time period.
Can I switch between net metering and a newer export structure?
Switching rules depend on LADWP’s current program terms. In many cases, once you are enrolled under one structure, changing is limited or may not be reversible, so check before you decide.
Do I get paid in cash for excess solar?
Surplus credits are generally applied to your account balance rather than paid out as cash. Any unused balance at the end of a true-up period may be settled according to the tariff in effect, so review your statements.
Does a battery change my credits?
A battery does not automatically change your credit value, but it can change when you export or consume power. Under time-based export structures, that timing can affect how much each kilowatt-hour is worth.
Where can I confirm the current rates?
Current LADWP tariff details are published by the utility and may be updated through regulatory filings. Because these rules change, consult LADWP directly or a licensed solar professional before making a financial decision based on any rate.
Conclusion
For most Los Angeles homeowners with a standard rooftop system that exports a meaningful share of its midday output, the legacy one-for-one arrangement is usually the stronger and more predictable choice, provided you are eligible for it. Homes planning a large battery and evening-focused use may find the newer export structure more rewarding, but the math depends on current export values. Review your production data, household load profile, and the latest LADWP tariff sheets, and consider a consultation with a licensed installer before you commit.
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.
