Net metering is the policy that determines what you get paid when your solar panels produce more electricity than your home uses. It's also one of the most misunderstood parts of going solar — and in 2026, with California's reduced export rates now established and other states reviewing their policies, understanding exactly what applies in your state is critical to getting the ROI math right.
Disclaimer: Net metering policies are set by state utility commissions and individual utilities. Rates and rules change frequently — always verify current policy with your utility before finalizing solar ROI projections. Data below reflects policies as of May 2026.
Key Takeaways
- 41 states plus DC have mandatory net metering laws; 8 states have no statewide requirement and policies vary by utility
- California's NEM 3.0 reduced export credits from ~$0.30/kWh (retail) to ~$0.05/kWh (avoided cost), extending typical payback by 2–4 years
- Full-retail-rate net metering states (Texas, Florida, many Midwest states) offer the highest value per exported kWh — typically $0.11–$0.18/kWh
- Battery storage significantly improves ROI in states with poor export rates by enabling self-consumption instead of grid export
How Net Metering Works
When your solar panels produce more electricity than your home is using at that moment, the excess flows to the grid through your utility meter. Your net meter measures both the electricity you pull from the grid and the electricity you push to it. At the end of each billing period, your utility calculates your net usage — what you took minus what you sent.
If you sent more than you used, you receive a credit. Most states apply that credit to your next billing period. What that credit is worth — full retail rate, avoided-cost rate, or something in between — is what varies dramatically by state and utility.
The math matters. If your utility credits you at $0.15/kWh for exports (retail rate) and that same kWh would cost you $0.15/kWh from the grid, net metering is a dollar-for-dollar exchange. If your utility credits you at $0.05/kWh (California NEM 3.0 avoided-cost rate) while you're paying $0.30/kWh to buy from the grid, exporting is worth one-sixth of self-consuming.
Net Metering Policies by State (2026)
| State | Net Metering Type | Export Credit Rate | Solar ROI Impact |
|---|---|---|---|
| California | NEM 3.0 (avoided cost) | ~$0.04–$0.08/kWh | Significantly reduced; battery storage essential |
| Texas | Full retail (most utilities) | ~$0.11–$0.14/kWh | Strong; self-consumption and export both valuable |
| Florida | Full retail | ~$0.12–$0.15/kWh | Strong |
| New York | Full retail (Con Edison, NYSEG) | ~$0.18–$0.22/kWh | Strong; high retail rate amplifies value |
| Arizona | Avoided cost (post-2017 installs) | ~$0.06–$0.09/kWh | Moderate; self-consumption preferred |
| Massachusetts | Full retail + SMART incentive | ~$0.22–$0.28/kWh + SMART | Excellent |
| New Jersey | Full retail | ~$0.16–$0.19/kWh | Strong; SREC revenue stacks on top |
| Nevada | Tiered export rate | ~$0.09–$0.12/kWh | Moderate |
| Hawaii | Customer Self-Supply (no export) | $0 (self-consume only) | Battery storage required for full value |
| Georgia | Avoided cost | ~$0.05–$0.07/kWh | Low; prioritize right-sizing to avoid excess export |
The California NEM 3.0 Situation
California's April 2023 transition to NEM 3.0 is the most significant net metering policy change in U.S. history. Under the old NEM 2.0, California solar owners received full retail rate credits — roughly $0.28–$0.35/kWh — for every kWh they exported. Under NEM 3.0, export credits dropped to "avoided cost" rates set by each utility: typically $0.04–$0.08/kWh.
The practical effect: a California homeowner who sized their system to export 30–40% of production saw their annual solar earnings drop by 70–80% on the export portion. Payback periods that might have run 7–9 years under NEM 2.0 now run 10–14 years for the same system under NEM 3.0 — unless battery storage is added.
With battery storage, California homeowners can shift excess solar production to peak evening hours (when rates are $0.45–$0.55/kWh under TOU rate plans) instead of exporting at $0.06/kWh. This is the primary driver of California's high battery attachment rate, which now exceeds 50% of new solar installations. See Home Battery Storage Cost in 2026 for costs and payback analysis.
States With No Mandatory Net Metering
Eight states have no statewide net metering requirement: Alabama, Idaho, Kansas, Mississippi, South Dakota, Tennessee, Texas (at the state level — most utilities offer it voluntarily), and Wyoming. In these states, policies depend entirely on your utility.
Most large investor-owned utilities in these states still offer net metering voluntarily — often because solar installation rates are high enough that it's easier to accommodate than fight. But the rate isn't guaranteed, and some rural co-ops in these states offer minimal or no export credits. If you're in one of these states, call your utility before signing a solar contract and ask specifically: "What is your current net metering export credit rate?"
How Net Metering Affects System Sizing
Your net metering policy should directly influence how you size your solar system. In a full-retail-rate net metering state, oversizing your system (producing more than you consume annually) still has value — you'll get retail-rate credits for every kWh exported. In a low-rate export state like California, Arizona, or Georgia, oversizing is wasteful: you're producing kWh that you'll export at $0.05–$0.08 but could otherwise have not generated.
The financially optimal approach in low-export states: size your system to cover approximately 100% of your annual consumption, not more. In full-retail states, sizing to 110–120% can make sense if you're adding an EV or heat pump soon. If you're adding an EV charger before June 30, 2026, see the Section 30C EV Charger Tax Credit guide — it's the last active federal residential energy credit and expires mid-year.
Our Solar ROI Calculator accounts for your state's net metering rate when projecting annual savings — make sure to enter the correct export credit value. Use the Solar Lease vs Buy Calculator to compare how net metering value differs between owning and leasing.
The Future of Net Metering
Net metering is under pressure in many states. Utilities argue that solar owners who avoid grid charges shift costs to non-solar customers. The National Renewable Energy Laboratory's 2024 distributed generation value analysis found that well-designed solar systems provide grid value (reduced transmission demand, local generation) that often equals or exceeds the retail rate — but that finding is contested.
States currently reviewing or recently revised policies include Nevada (reduced rate in 2015, partially reversed in 2017), Arizona (moved to avoided cost for post-2017 installs), and Utah (adopted a declining rate structure). Watch for policy changes in your state — if you're on the fence about solar, a rate reduction announcement often creates a rush to install before the deadline.
For the full ROI picture including net metering value in your state, see Is Solar Worth It in 2026?.
Bottom Line
Net metering is one of the most impactful variables in solar ROI — and it's determined by your state and your utility, not your installer. Before you sign a solar contract, know exactly what your utility pays for exported kWh and factor that into your payback calculation.
Full-retail-rate states (New York, Massachusetts, Texas, Florida, New Jersey) offer strong net metering economics. Avoided-cost states (California, Arizona, Georgia) reward self-consumption over export — making battery storage or right-sizing more important.
Related Guides
- Home Solar Panels: The Complete 2026 Guide — Full overview of solar costs, sizing, financing, and ownership from start to finish.
- Is Solar Worth It in 2026? — State-by-state payback analysis that incorporates net metering rates and state incentives.
- Solar Panel Maintenance Guide: Cleaning, Lifespan & Warranty (2026) — What long-term solar ownership looks like once your system is running.
- Home Battery Storage Cost in 2026 — How battery storage improves ROI in states with poor export rates like California.
