Best UK home solar panel and battery tariffs — June 2026 import & export
Compare every UK solar + battery import and export tariff verified live in June 2026, including the critical pairing rules that determine whether you can access a supplier's premium SEG rate. EnergyPlus matches your install (MCS reference, panel kWp, battery capacity) against the June 2026 best-buys for both halves of the SEG-import equation.
- Eight export tariffs ranked June 2026 from 4.1p to 32.17p/kWh
- Import tariff pairings explained — Cosy and Intelligent Octopus Go for battery arbitrage
- Pairing rules: which supplier you must take electricity from to access their best SEG rate
- Battery storage VAT 0% policy context — confirmed extended through 2027 in HM Treasury May 2026 budget
Both halves of the equation matter — import and export
The June 2026 solar + battery economics live on two tariff legs. Your import tariff governs the price you pay for the grid electricity that tops up your battery overnight or backfills cloudy days. Your export SEG tariff governs what your supplier pays you for surplus generation pushed back to the grid. The best total economics combine a cheap off-peak import (Octopus Cosy 13p three-window, or Intelligent Octopus Go 7p) with a premium export rate (Intelligent Octopus Flux up to 32.17p peak, Good Energy 25p flat, EDF 24p).
EnergyPlus checks both legs for your install spec and postcode. The pairing rules below explain why you usually need to be on the same supplier's electricity tariff to access their best SEG rate — something many homeowners discover the hard way.
Find the best solar + battery tariff pairing
Enter your postcode, panel kWp and battery size — we'll match June 2026 import and export combinations. Takes about 60 seconds.
Export (SEG) tariffs ranked — UK June 2026
| Tariff | Export rate | Rate type | Pairing rule |
|---|---|---|---|
| Intelligent Octopus Flux | up to 32.17p/kWh peak | AI-managed battery dispatch | Octopus electricity + supported battery brand (GivEnergy, Tesla, Sonnen, etc.) |
| Octopus Flux | 5–29.32p/kWh variable | Three-window TOU | Octopus electricity required |
| Good Energy Solar Savings Exclusive | 25p/kWh | Flat | Good Energy install + Good Energy electricity |
| EDF Export Exclusive 12m V2 | 24p/kWh | Flat | EDF Contact Solar install + EDF electricity |
| E.ON Next Export | 16.5p/kWh | Flat | E.ON Next electricity preferred |
| British Gas Export & Earn Plus | 15.1p/kWh | Flat | BG electricity required |
| Ecotricity Export | 8.9p/kWh | Flat (open market) | Any supplier accepted |
| Outgoing Octopus Lite | 4.1p/kWh | Flat (open market floor) | Any supplier accepted |
All eight require MCS-certified installation evidence at sign-up under SEG legislation. verified June 2026.
Import tariffs that pair well with a solar battery (June 2026)
Octopus Cosy (13p three-window)
Three off-peak windows (04–07, 13–16, 22–00) at 13p/kWh let you charge a battery from the grid when prices are low. Pairs with Octopus Flux or Intelligent Octopus Flux on the export side for the strongest June 2026 import–export combo.
Intelligent Octopus Go (7p off-peak)
7p/kWh off-peak six-hour window (typically 23:30–05:30) is the cheapest import rate in the June 2026 market and ideal for overnight battery top-ups, but requires a supported smart charger paired in the IOG app.
Pairing rules — which import unlocks which export
Same-supplier rule
To access Octopus Flux, Intelligent Octopus Flux, Good Energy Solar Savings Exclusive, EDF Export Exclusive or BG Export & Earn Plus, you must be on the same supplier's electricity import tariff. Switching to a cheaper third-party import voids access.
Install-channel rule
Good Energy Solar Savings Exclusive requires the system to be installed via a Good Energy MCS-accredited installer. EDF Export Exclusive V2 requires Contact Solar (EDF's install partner). Retrofits installed by independent MCS firms drop to the supplier's lower open-market export rate.
Open-market exception
Ecotricity Export (8.9p) and Outgoing Octopus Lite (4.1p) are the only June 2026 SEG tariffs open to any-supplier customers. Useful if you want to pick a non-supplier-tied import deal like E.ON Next Fixed v53 at £1,602/yr.
Worked earnings — 6 kWh PV + 10 kWh battery (verified June 2026)
A 6 kWp south-facing array generates roughly 5,400 kWh/yr in southern England. After self-consumption a typical household exports 3,000–3,500 kWh. Battery arbitrage adds another 700–1,000 kWh of dispatched export on time-of-use tariffs.
| Export tariff | Effective £/kWh | Exported kWh/yr | Annual SEG earnings |
|---|---|---|---|
| Intelligent Octopus Flux (battery dispatched) | ~22p blended | ~4,200 | £924 |
| Good Energy Solar Savings Exclusive | 25p flat | 3,200 | £800 |
| EDF Export Exclusive V2 | 24p flat | 3,200 | £768 |
| E.ON Next Export | 16.5p flat | 3,200 | £528 |
| British Gas Export & Earn Plus | 15.1p flat | 3,200 | £483 |
| Ecotricity Export | 8.9p flat | 3,200 | £285 |
Bottom line for a typical June 2026 install: £550–£900/yr SEG with a 6 kWh + 10 kWh battery setup, with the top end requiring a batterised time-of-use product like Intelligent Octopus Flux.
Policy backdrop — VAT, MCS and SEG (June 2026)
0% VAT on battery storage
Domestic battery storage (standalone or retrofit) attracts 0% VAT through 2026. HM Treasury's May 2026 budget extends the relief through 2027, locking in a meaningful capex saving for households scaling battery capacity.
MCS certification mandatory
Every SEG tariff above requires MCS install certification. Self-build or non-MCS installs cannot register for SEG — but they can still self-consume and reduce import bills via a battery on Octopus Cosy or Intelligent Octopus Go.
SEG floor unchanged
Ofgem's SEG floor remains at 1p/kWh in June 2026 — the regulator's mandatory minimum any licensed supplier with over 150,000 customers must offer. Outgoing Octopus Lite (4.1p) sits just above this floor as the open-market default.
Frequently asked questions — solar + battery tariffs (June 2026)
What is the best solar export tariff in the UK in June 2026?
Intelligent Octopus Flux pays up to 32.17p/kWh during peak windows with AI-managed battery dispatch — the highest headline rate verified June 2026. For flat-rate simplicity, Good Energy Solar Savings Exclusive at 25p/kWh leads but requires a Good Energy install and import tariff. Use the comparison form to confirm pairing eligibility.
Do I have to be on the same supplier's electricity tariff to access their export rate?
For premium rates, yes. Octopus Flux, Intelligent Octopus Flux, Good Energy Solar Savings Exclusive, EDF Export Exclusive and BG Export & Earn Plus all require you to be on the same supplier's import tariff. Only Ecotricity Export (8.9p) and Outgoing Octopus Lite (4.1p) accept any-supplier customers.
How much can a 6 kWh PV + 10 kWh battery setup earn in June 2026?
Typically £550–£900/yr SEG. The bottom end (£550) is achievable on E.ON Next Export 16.5p/kWh flat with no battery dispatch. The top end (£900+) requires Intelligent Octopus Flux's AI-managed battery dispatch into peak windows. Compare options now.
Do I need MCS certification to get a solar export tariff?
Yes. Every June 2026 SEG tariff requires MCS install certification at sign-up. Non-MCS installs cannot register for SEG payments under current legislation, though they can still self-consume and reduce import bills.
Is battery storage still 0% VAT in 2026?
Yes. Domestic battery storage — standalone or retrofit — remains at 0% VAT through 2026, with HM Treasury's May 2026 budget confirming extension through 2027. This applies to both AC- and DC-coupled batteries installed alongside or after a solar PV array.
What import tariff should I pair with my solar battery?
For Octopus Flux or Intelligent Octopus Flux export, Octopus Cosy (13p three-window) or Intelligent Octopus Go (7p off-peak) are the standard pairings — enabling battery arbitrage during low-price windows. For non-Octopus exports, pair with the supplier's cheapest fix and self-consume from PV directly.
Can I switch supplier without losing my SEG payments?
Yes — SEG is a contractual relationship per supplier so switching means signing up with the new supplier's SEG before cancelling the old. The MID (Meter Identifier) and MCS reference transfer cleanly. Use the comparison form to plan a paired switch.
Will the 1 July 2026 cap rise affect my SEG payments?
No — SEG export rates are set per tariff contract and not linked to the default cap. The cap rise actually widens import–export arbitrage for battery owners on time-of-use products, making Intelligent Octopus Flux economics more favourable from July 2026 onwards.
Lock in the right import–export pairing before the July cap
The cap rises £221 in 30 days. The June 2026 export best-buys above let solar + battery households turn that rise into a tailwind — widening the arbitrage on every dispatched kWh. verified June 2026 pricing across all eight SEG tariffs.
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