US residential solar · 2026 data

Net Metering vs Feed-in Tariff

SAVE

$0+

Over 25 Years

$16,800 Cost after ITC
9.3 yrs Payback
8.0 kW Typical system

Most homeowners need:

  • 20–24 panels typical
  • 8.0 kW average system
  • $16,800 after tax credits
  • 9.3 year payback
✓ Updated monthly ✓ NREL data ✓ Reviewed by solar experts ✓ IRS tax credit included
· 10 min read ·By ·Reviewed by Green Energy Calculators Editorial Team

Without solar vs with solar

25-year cost comparison for a $300/month US electric bill.

Without solar

25-year utility cost

$75,000

Rates rise ~3% per year (EIA avg.)

With solar

Net system cost

$16,800

After 30% federal ITC

Your savings

Difference

+$58,200

Estimated lifetime advantage

500,000+
calculations completed
25,000+
users monthly

Trusted by US homeowners · Data sourced from

NREL EIA Energy.gov DSIRE IRS / SEIA
Author Mark Sullivan
Reviewed by Green Energy Calculators Editorial Team
Last updated
Sizing formula kW = Annual kWh ÷ (Peak Sun Hours × 365 × 0.82)

More than 4.5 million US homes now send surplus solar electricity back to the grid, yet most homeowners have no clear idea whether they are being compensated fairly for every kilowatt-hour they export. The two dominant compensation models — net metering and feed-in tariffs — look similar on paper but can differ by hundreds of dollars a year in real-world value. Choosing the wrong system, or simply misunderstanding the one you are already on, can quietly erode the financial case for going solar.

The distinction matters most when you are sizing your system or deciding how much battery storage to add. A household on a generous feed-in tariff often benefits from exporting as much as possible, while a household on net metering typically gets more value from self-consuming its own generation. Getting this wrong at the design stage is a costly mistake that no amount of solar sunshine can undo.

This guide breaks down exactly how each policy works, what the current compensation rates look like across the US, UK and Australia, and which structure tends to put more money back in homeowners’ pockets over a 10- to 25-year system life.

How Net Metering Works — and What It Actually Pays You

Net metering treats the electricity grid like a giant battery. When your solar panels produce more than your home is consuming, the surplus flows out to the grid and your meter runs backwards, crediting your account at the full retail electricity rate. When the sun goes down and you draw power from the grid, those credits are subtracted from what you owe. At the end of each billing period you pay only the “net” difference.

The key financial benefit is rate equivalence: every kilowatt-hour you export is worth the same as every kilowatt-hour you import. In states where retail electricity prices are high, this equivalence is extremely valuable. The average US retail electricity price reached 16.4 cents per kWh in 2024 according to the EIA, meaning a homeowner exporting 300 kWh per month receives an implicit credit of roughly $49 per month against their bill.

Net metering policy is set state by state, not federally, which creates a patchwork of rules. California was the first state to mandate net metering back in 1995, but its NEM 3.0 policy introduced in 2023 significantly reduced export credit rates for new applicants, dropping them to an average of around 5 cents per kWh during peak export hours. That single change shifted the economics heavily toward battery storage for new California installations. By contrast, Florida still offers straightforward retail-rate net metering under its Net Energy Metering statute, making it one of the more solar-friendly states for grid-tied systems without batteries.

Most net metering programs also impose annual true-up periods, where any remaining credits are either cashed out at a lower avoided-cost rate or rolled over. If your system is consistently over-producing relative to your annual load, those excess credits may be worth far less than retail — sometimes as little as 2–4 cents per kWh at true-up. Sizing your system accurately using a solar savings calculator is one of the most effective ways to avoid leaving money on the table through chronic over-export.

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How Feed-in Tariffs Work — and Where They Pay More

A feed-in tariff (FiT) pays a fixed rate for every kilowatt-hour your solar system exports to the grid, regardless of what you pay for the electricity you import. The two figures are completely decoupled. You buy electricity at one rate and sell it at another, and the export rate is set by a government policy or utility contract rather than by the retail market.

Feed-in tariffs dominated solar policy in Germany, the UK and Australia throughout the 2000s and 2010s, and some of those early contracts were extraordinarily generous. Homeowners who locked into the UK’s original Feed-in Tariff scheme in 2010 received 41.3p per kWh — a rate that made solar panels financially compelling even when hardware costs were still high. Those contracts ran for 20 years, meaning some UK households are still receiving that rate today.

Current FiT export rates are far more modest. Australia’s Smart Export programs (which replaced the old premium FiTs) now pay between 2 cents and 10 cents per kWh depending on the retailer and state, well below the 28–35 cents per kWh Australians pay to import power. The UK’s Smart Export Guarantee (SEG), launched in 2020, requires licensed electricity suppliers to offer an export tariff but sets no minimum rate above zero — the best available offers in early 2026 sit around 15p per kWh for those who shop actively. In the US, true feed-in tariff programs are rare; Hawaii had a FiT program that was largely phased out, and Vermont operates a standard-offer program paying around 10 cents per kWh for small solar installations.

Because the import and export rates are decoupled, FiT households have a clearer incentive to maximise export volume — but only when the export rate genuinely exceeds the marginal value of self-consumption. When it does not, which is the case in most markets today, self-consumption remains the priority. That reality has fundamentally changed how solar installers in Australia and the UK now size residential systems — moving away from maximum generation toward matching array output to daytime household consumption patterns.

Bar chart comparing net metering credit rates and feed-in tariff export rates across US, UK and Australia in 2026
Net metering still delivers the highest effective export value in most US states. California NEM 3.0 dropped to roughly 5¢/kWh while Florida retains full retail credits near 13¢/kWh; UK SEG tops out around 15p/kWh and Australian smart export tariffs average just 5–8¢ AUD/kWh. Source: EIA, Ofgem, AEMC 2026.

The Real Financial Gap: 10-Year and 25-Year Outcomes Compared

The lifetime financial difference between net metering and a low feed-in tariff is substantial once you model it over a full system life. A 7 kW rooftop system in a sunny US state producing 9,800 kWh per year, with 40% self-consumption and 60% exported, sends roughly 5,880 kWh per year to the grid. At a full retail credit of 13 cents per kWh (Florida-style net metering), that export stream is worth about $764 per year. At a FiT of 5 cents per kWh, the same export stream is worth only $294 — a $470 annual difference that compounds to roughly $11,750 over 25 years in today’s dollars.

Those numbers illustrate why the shift in California’s NEM policy attracted so much industry attention. SEIA estimated that NEM 3.0 would reduce the value of solar savings by around 75% for new applicants who did not pair their systems with battery storage. The intended effect was to push homeowners toward batteries and reduce grid stress during peak export periods, but the result was a measurable slowdown in new residential solar permits through 2023 and into 2024.

For homeowners in states where net metering remains strong — Texas, New York, Massachusetts and most of the Southeast — calculating the precise payback period still makes sense before signing an installation contract. A difference of even 3–4 cents per kWh in the export rate can shift a system’s break-even point by 1.5 to 2.5 years. You can run those numbers through a solar payback period calculator to see exactly how your local export compensation rate affects your timeline. For state-by-state payback data, our guide to Solar Panel Payback Period by State is the most complete resource.

Battery storage changes this calculus significantly. When export rates are low — as under California NEM 3.0 or most Australian smart export programs — the value of self-consumption rises sharply. Storing afternoon generation in a battery and using it in the evening instead of exporting it at 5 cents and buying it back at 30 cents can recover most of the value that a reduced FiT or export tariff removes. Pairing a solar system with a battery in those markets is increasingly the financially rational choice, not merely an environmental preference.

Net Metering vs Feed-in Tariff: Key Structural Differences

The single most important structural difference is how the export rate is determined. Under net metering, your export credit is tied to the retail rate — which fluctuates over time as utility rates rise. That linkage is actually a long-term advantage for homeowners, because US retail electricity prices have risen at an average rate of 2.7% per year over the past two decades according to EIA data. Every time your utility raises its rates, your implicit net metering credit rises with it, improving your solar economics automatically without any action on your part.

Under a feed-in tariff, the export rate is fixed by contract or regulation, often for 10 to 20 years. Early adopters who locked in high rates — like the UK’s 41.3p scheme or Australia’s Queensland Solar Bonus Scheme at 44 cents per kWh — did extremely well. Late adopters who enter FiT programs today at 5–8 cents do not benefit from future retail rate increases on their exported power, which is a structural disadvantage over a 20-year system life.

A second important difference is administrative simplicity. Net metering requires only a single bidirectional meter and no separate export metering contract. Feed-in tariffs often require a dedicated export meter and a separate payment arrangement with a licensed supplier, which adds administrative friction and occasionally delays payments by several billing cycles.

There is also a meaningful self-consumption incentive difference. Net metering does not particularly reward or penalise shifting consumption to daytime; the credit rate is the same regardless of when you self-consume versus export. Feed-in tariffs at rates below retail, by contrast, create a strong incentive to shift loads — running dishwashers, washing machines and EV charging — to solar generation hours. Oregon and several other states with time-of-use net metering programs are beginning to hybridise the two models, paying higher credits during peak demand hours and lower credits during off-peak periods, blending the demand-management signals of a FiT with the administrative simplicity of net metering.

Understanding how your time-of-use rate structure interacts with solar export timing can uncover meaningful hidden savings. A time-of-use savings calculator lets you model exactly which consumption pattern maximises your bill reduction under whichever export policy applies in your state.

Which Solar Export Policy Is Better for Homeowners in 2026?

The answer depends almost entirely on the specific rates in your jurisdiction, not on the policy label. Net metering at full retail rates remains the single most valuable solar compensation structure available to residential customers anywhere in the world, provided the retail rate is at least 10 cents per kWh. When retail-rate net metering is available, prioritising self-consumption still makes sense, but the export stream pays well and inflation-proofs itself as grid prices rise.

Feed-in tariffs at rates below 8 cents per kWh — which describes most current programs in Australia, much of Europe and a handful of US states — are significantly less valuable than retail-rate net metering. In those markets, the financial priority should be maximising self-consumption, which typically means right-sizing your solar array to your actual load rather than maximising generation capacity, and seriously evaluating battery storage to capture generation that would otherwise be exported cheaply.

The trend direction is also worth factoring in. Net metering is under sustained pressure from utilities in many US states, who argue that net metering customers avoid paying their fair share of grid maintenance costs. New Jersey and Nevada have both revisited their net metering structures in recent years, and more states are likely to follow California’s lead over the next five years. Homeowners who are on the fence about going solar should account for the risk that current export rates may not persist for the full 25-year system life.

NREL research consistently shows that the combination of solar plus battery storage offers the most resilient financial profile across a wide range of export compensation scenarios, because it reduces dependence on grid export altogether. For US homeowners, the 30% federal Investment Tax Credit under the Inflation Reduction Act applies equally to systems installed under net metering or feed-in tariff arrangements, and batteries added at the time of solar installation also qualify for the full 30% credit. Before finalising your system design, running your numbers through a solar net metering calculator will show you precisely how your local export rate, self-consumption ratio and system size interact to determine your actual payback and lifetime savings.

Frequently asked questions

Direct answers for US homeowners — sized for a $150/month electric bill.

Net metering credits your bill at the full retail electricity rate for power you export, effectively using the grid as a zero-cost battery. A feed-in tariff pays a fixed cash rate per kWh exported, usually set below the retail import rate. In most US states, net metering provides 2–3 times more value per kWh exported than current feed-in tariff rates in Australia or the UK.

$150/month electric bill by state

System size and payback vary by electricity rate and sun hours — see your state.

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Methodology & data sources

Calculation method: System size uses NREL PVWatts derate factor (0.82). Costs based on SEIA 2026 installed cost ($2.75–$3.20/W). Payback uses net cost after 30% federal ITC (IRC Section 25D). Savings assume full-retail net metering unless noted.

Official sources: EIA state electricity rates · NREL PVWatts · Energy.gov ITC guide · DSIRE incentives · SEIA market data · IRS Publication 5695.

All figures are estimates for educational purposes — not tax, legal, or investment advice. Consult a licensed installer and CPA for your situation.

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