The UK Smart Export Guarantee pays only pennies, so time-of-use tariffs turn a home battery into a daily arbitrage machine. Household power cost 36.33 c€/kWh all-in in London. Batteries installed with solar carry 0% VAT through 31 March 2027.
Structure reviewed 2026-09-25 · figures and sources as listed below
The UK’s home storage market is shifting from feed-in-tariff legacy to time-of-use optimization. Octopus Agile and Intelligent Octopus Flux turn batteries into daily arbitrage machines, and heat-pump uptake under BUS grants is boosting storage demand for load-shifting.
| Indicator | Value, source and retrieval date |
|---|---|
| Electricity price: | 36.33 c€/kWh all-in (London) — Household Energy Price Index (HEPI), 2026-07-30 · source |
| VAT on batteries: | 0% VAT on batteries installed with solar, through 31 March 2027 — HMRC · source |
| Home Energy Scotland: | up to £7,500 grant for storage in rural areas — Energy Saving Trust (reviewed 2026-08-24) |
Last updated: 2026-08-24
Last reviewed: 2026-08-14
UK guides: choosing between SEG and time-of-use export tariffs, MCS compliance for SEG eligibility, and the 0% VAT window on batteries (with solar) through March 2027.
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