How do I choose the best SEG tariff for my solar export?

The best SEG tariff for you depends on the export rate (p/kWh), whether it’s fixed or variable, how often it changes, the contract terms, and how you’ll be paid. Also check eligibility criteria and any metering requirements. If you want to switch, compare both export price and practical factors like billing frequency and support.

Is a higher export rate always better?

Not always. A higher p/kWh rate can be attractive, but you should also consider whether the tariff is variable, any limits or conditions, payment frequency, and how easy it is to set up and manage. For many households, overall value comes from a good export rate plus clear terms and reliable payments.

Do I need a smart meter for SEG payments?

Most SEG tariffs require an export-capable meter (commonly a smart meter configured for export) so exported electricity can be accurately measured. Some suppliers may accept other metering arrangements, but an export-reading smart meter is typically the simplest route.

Can I get SEG if I’m not with the same supplier for import and export?

Yes. You can usually take your electricity import supply from one company and your SEG export tariff from another, as long as you meet the export supplier’s eligibility requirements. This can help you find a better export rate without changing your import tariff.

How do I apply for a SEG tariff?

Typically you’ll need an eligible renewable generator (such as solar PV), an export meter reading, and evidence your installation meets relevant standards (often MCS certification). Once you choose an export supplier and tariff, you submit an application and supporting documents, then you’ll start getting paid for measured exports.

How much can I earn with SEG from solar panels?

Earnings depend on how much electricity your system exports (kWh), your SEG export rate (p/kWh), and seasonal generation patterns. The more you export—and the higher the rate—the more you can earn, but many households also aim to maximise self-consumption to reduce import costs.

What’s the difference between fixed and variable SEG tariffs?

A fixed SEG tariff pays a set rate per kWh for a defined period, offering predictability. A variable tariff can go up or down over time, sometimes tracking market conditions. If you prefer stable payments, fixed can be appealing; if you’re comfortable with changes, variable may suit.

Can I switch SEG tariffs if I find a better export rate?

In many cases, yes. Check your current export tariff terms for notice periods or conditions, then apply with the new SEG supplier. Make sure your metering and documentation are in place to avoid delays in payments.

Where can I learn more or compare options with Energy Plus?

You can read the full guide here: https://www.energyplus.co.uk/guidesfaqs/best-seg-tariff. If you’re exploring export and import options, visit https://www.energyplus.co.uk/ to view Energy Plus services and learn how to get started.

Best SEG tariff (UK): compare solar export rates in 2026

Q: What is the Smart Export Guarantee (SEG)?

The Smart Export Guarantee (SEG) is a UK scheme that pays eligible homes and businesses for renewable electricity they export to the National Grid (for example from solar PV). Licensed electricity suppliers offer SEG export tariffs, and you’re paid per kWh exported based on the tariff you choose.

A practical UK guide to finding a Smart Export Guarantee (SEG) tariff that fits your solar setup—what “best” really means, what to watch for, and how to compare alongside your import electricity deal.

Understand SEG rates, eligibility and common terms (including smart meter and MCS requirements)
See realistic export earnings examples with transparent assumptions
Use our checklist and table to shortlist tariffs without nasty surprises

Compare energy quotes How SEG comparisons work

SEG export payments and eligibility depend on your meter, installation certification and supplier terms. Rates change—always check tariff documents before you switch.

Fast answer: what’s the “best” SEG tariff?

In the UK, the best Smart Export Guarantee (SEG) tariff is usually the one that pays a competitive export rate and fits your setup (meter type, payment frequency, and whether you must also take the supplier’s import tariff). The headline pence-per-kWh rate matters, but so do the terms.

Best for most homes

A simple, fixed-rate SEG with no awkward conditions, paid at least quarterly, using your existing smart meter export readings.

Best if you can shift usage

A variable or time-based export rate can work well if you regularly export at higher-value times—check how prices are set and when they update.

Not always “best”

The highest advertised rate may require you to take the same supplier’s import tariff (which could be expensive overall), or only apply in certain regions/meter setups.

Key takeaway: A SEG tariff should be chosen alongside your import electricity tariff. A great export rate can be offset by higher import unit rates or standing charges.

Quick “best SEG” checklist

Eligibility: MCS certificate (or equivalent) and an export-capable smart meter accepted by the supplier
Rate type: fixed vs variable vs time-based (and how often it can change)
Import requirement: do you have to also be an import customer?
Payment frequency: monthly / quarterly and how you submit readings (if at all)
Exit fees / term: check the export agreement and any tie-ins

Before you compare

Have a battery?: Battery behaviour affects export volumes—your “best” tariff may depend on how you charge/discharge.
SEG vs FiT?: If you’re on the older Feed-in Tariff, you typically keep it; SEG is mainly for newer installs.
Smart meter status: Many SEG tariffs require a smart meter that can record export. If you don’t have one, prioritise suppliers with clear meter upgrade routes.

Compare import + export together (recommended)

Many households focus on export p/kWh and miss the bigger picture. Your net cost is usually dominated by what you import from the grid, your standing charge, and how often you export.

How EnergyPlus helps (without the fluff)

Tell us your postcode and a few basics, so we can show options available where you live.
Compare whole-of-market tariffs (import deals) and highlight export terms where available.
Choose based on net impact: export rate, import rate, standing charge, contract length, and practical eligibility.

Important: SEG export is a separate agreement. Some suppliers let you take export without switching your import; others link them. Always confirm the supplier’s current policy and tariff documents.

What you’ll need (2 minutes)

Your postcode and whether you pay by Direct Debit / prepayment / other
Whether you have a smart meter capable of recording export (if unsure, we’ll guide you)
Solar PV details if handy (installer/MCS certificate, approximate system size)

Two realistic SEG earnings scenarios (with assumptions)

Scenario A: typical solar-only home

Assume: 3.5kWp PV, no battery, exports 1,200kWh/year, fixed SEG rate 15p/kWh.

Estimated export payment: 1,200 × £0.15 = £180/year (about £15/month if paid monthly).

Notes: export depends heavily on daytime usage, occupancy patterns, and season.

Scenario B: solar + battery home

Assume: 4.5kWp PV, battery, exports 800kWh/year (more self-consumption), SEG rate 20p/kWh.

Estimated export payment: 800 × £0.20 = £160/year.

Notes: batteries can reduce export; the “best” tariff may be more about import prices if you charge off-peak.

These examples are illustrative, not predictions. Actual export is affected by weather, shading, inverter limits, battery settings, and whether you have an export limit agreed with the network operator.

Get your energy quote

Tell us a few details and we’ll show suitable options. It’s designed to be quick, with no jargon.

Privacy note: We use your details to provide quotes and support your comparison. Always review supplier terms before agreeing to any SEG export contract.

Compare SEG tariffs: what to look at (beyond the rate)

Use this table to compare suppliers on the factors that typically make the biggest difference to real-world export earnings and day-to-day admin.

Comparison point	Why it matters	What to check in the tariff
Export unit rate (p/kWh)	Directly drives payments. A small difference can add up if you export a lot.	Fixed or variable? Any cap/floor? Does it track a market index?
Import tie-in	Some suppliers require you to buy your electricity from them to access their SEG.	Can you keep your current import supplier? Any minimum contract length?
Metering & readings	Eligibility often depends on smart export readings and how they’re collected.	Smart meter required? Remote reads or manual submissions? Any specific meter types?
Payment frequency	Cashflow and admin: monthly is simpler than infrequent payouts for many households.	Monthly/quarterly? Minimum payout threshold? Credit to bill or bank transfer?
Export type	Some tariffs are designed for solar-only; others for batteries/EVs with time-of-use imports.	Any conditions tied to battery/EV, time windows, or specific equipment?
Contract terms	You don’t want an export agreement that limits future switching flexibility.	Exit fees? Notice period? What happens if you move home?

Decision checklist: who a high-rate SEG suits

You export a meaningful amount (e.g., you’re out during the day, or you have larger PV)
Your import tariff is already competitive (or you can access a good import tariff with the same supplier)
You have an export-capable smart meter (or a clear path to getting one)
You’re comfortable with variable rates if the tariff can change

Who it may not suit

You export very little (most generation is used on-site or stored), so import costs dominate
The export rate is good, but the linked import tariff has a high standing charge or unit rate
You don’t have MCS certification (or the supplier won’t accept your documentation)
The tariff requires frequent manual readings or has inconvenient payment thresholds

Practical tip: If you’re comparing two SEG options with similar export rates, the tie-breaker is often import standing charge and whether you’re forced onto a particular import deal.

Costs, exclusions and common SEG pitfalls (UK)

Most SEG tariffs don’t charge you directly for exporting, but households can still get caught out by eligibility rules, admin, or import-tariff trade-offs.

1) Smart meter & export readings

Some suppliers require half-hourly export data or specific smart meter configurations. If your export readings aren’t flowing, payments can be delayed while it’s resolved.

What to do: Ask how export readings are collected (remote vs manual), and what happens if readings are missing.

2) Import tariff trade-off

A high export rate can look brilliant, but if it locks you into a pricier import unit rate or standing charge, your overall annual bill could be higher.

Rule of thumb: Estimate your annual export value and compare it to any extra import cost you’d pay.

3) Documentation & eligibility

Suppliers typically require proof your system is certified (often MCS) and meets safety/installation standards.

Check: Whether the supplier accepts equivalents (e.g., certain legacy schemes) if you don’t have MCS paperwork.

4) Payment thresholds and timing

Some SEG tariffs pay quarterly and may only pay once you exceed a minimum amount. That can be frustrating if you export small volumes.

5) Moving home or changing supplier

Export agreements can have notice periods. If you move, ask whether the export contract can transfer—or whether it ends and needs reapplying.

6) FiT confusion

If you’re already receiving payments through the Feed-in Tariff (FiT), switching to SEG could mean giving up FiT benefits. Many households should keep FiT unless advised otherwise.

Not sure what you’re on? Your electricity bill, online account, or annual statement often shows whether you have SEG export payments or FiT-related credits.

SEG FAQs (UK)

1) What is the Smart Export Guarantee (SEG)?

SEG is a UK scheme that requires larger electricity suppliers to offer an export tariff to eligible households that generate low-carbon electricity (commonly solar PV) and export surplus to the grid. You’re paid per kWh exported, based on metered readings.

2) Do I need a smart meter for SEG?

In practice, most SEG tariffs require a smart meter (or an export meter) that can measure exported electricity. Supplier requirements vary—some need half-hourly data, others accept periodic readings.

3) Do I have to switch my import electricity supplier to get SEG?

Not always. Some suppliers let you take SEG export without switching import; others only offer export to their import customers. Always check the export tariff’s eligibility and whether it’s bundled with an import deal.

4) How much can I earn from a SEG tariff?

It depends on your export volume (kWh) and the rate (p/kWh). For example, exporting 1,200kWh/year at 15p/kWh is about £180/year. Your actual export can be much higher or lower depending on household usage, PV size, shading, and whether you have a battery.

5) Is SEG the same as the Feed-in Tariff (FiT)?

No. FiT is a closed scheme for older installations and includes generation payments plus (often deemed) export. SEG is for eligible generation exporting to the grid with metered export readings. If you’re on FiT, be cautious about switching arrangements.

6) What documents do I need for SEG?

Typically, proof of installation certification (commonly MCS), details of your system, and meter information. Exact requirements differ by supplier, so check their SEG application checklist.

7) Are SEG payments taxable in the UK?

Tax treatment can depend on your circumstances. For many households, SEG payments are modest, but if you’re unsure, check current HMRC guidance or seek professional advice. Suppliers may not provide tax advice.

8) Can I get SEG with a battery or EV charger?

Often yes, but your export volumes and the “best” tariff choice can change. With a battery, you might export less (more self-use). If you have time-of-use import tariffs for EV charging, compare export alongside import costs and charging windows.

If you’re stuck: Use our comparison form above and we’ll help you identify options that match your meter and household setup.

Trust, methodology and sources

Page accountability

Written by: EnergyPlus Editorial Team
Reviewed by: Energy Specialist
Last updated: March 2026

How we assess “best SEG tariff” (our approach)

This guide is editorial, designed to help you compare tariffs confidently—not to recommend a single supplier for everyone. We focus on factors that materially affect household outcomes in the UK.

Rate realism: We prioritise whether a rate is fixed/variable, how it’s set, and how often it can change.
Eligibility friction: Smart meter/export measurement requirements, certification (often MCS), and whether import switching is required.
Net household impact: We encourage comparing export alongside import unit rates and standing charges.
Admin & payment: Payment frequency, thresholds, and reading submission requirements.

Limitations: Supplier tariffs, eligibility rules and rates can change quickly. Network constraints, metering configurations and household behaviour can materially change export volumes, so we use illustrative scenarios rather than promises.

Sources (UK)

We link to official and independent consumer resources so you can cross-check key definitions and rights.

Ready to compare the best options for your home?

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Get my quote Re-read the key takeaways

No guarantees—tariffs and SEG terms vary by supplier, meter compatibility and location. Always review the tariff information label and export agreement.

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Updated on 6 Mar 2026