Octopus Flux Tariff 2026
Octopus Flux is the most rewarding tariff in the UK for homes with solar AND battery storage. Three time bands let you charge cheap, discharge at peak, and export at premium rates.
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Octopus Flux rates 2026
All rates inclusive of VAT. Subject to Octopus's most recent rate review — check octopus.energy for live rates before signing up.
| Time window | Import | Export |
|---|---|---|
| 02:00 – 05:00 (cheap) | 17p | 18p |
| 05:00 – 16:00 (mid) | 30p | 30p |
| 16:00 – 19:00 (peak) | 36p | 24p |
| 19:00 – 02:00 (mid) | 30p | 30p |
Who wins on this tariff
- Homes with battery storage (Powerwall, EcoFlow, GivEnergy)
- Daytime self-consumers with surplus generation
- Solar systems 4 kWp or larger
- Households able to time-shift dishwasher / washing machine / hot water
When to skip it
- Solar without battery (Go is usually better unless export-heavy)
- Heat pump owners (Cosy aligns better with heating windows)
- Heavy 16:00–19:00 users who can't shift load
What it's worth
On a 4 kWp solar + 13.5 kWh battery system in the Midlands, Flux delivers ~£1,184/year off the bill vs ~£780/year on Octopus Go. The extra ~£400/year comes from peak-window export at 24p plus charging the battery cheap to discharge at peak.
FAQs about Octopus Flux
Is Octopus Flux the best tariff for Tesla Powerwall?
Can I switch to Flux without an export meter?
Flux vs Intelligent Octopus Flux?
Are Flux rates fixed?
Other tariffs
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