MCS-recorded installations
73,987
Sep 2023–Mar 2026 · domestic retrofitsDESNZ / MCS ↗Updated 28 May 2026
UK BATTERY STORAGE STATISTICS
UK Battery Market
Track the growth of home battery storage in Britain, including installation trends, battery costs, electricity tariffs and live grid conditions.
MCS-recorded installed capacity
666.88MWh
Cleaned sample · 72,459 installationsDESNZ / MCS ↗Updated 28 May 2026
Mean installed battery cost
£870/ kWh
6–10.99 kWh systems · 2025/26 sampleDESNZ / MCS ↗Updated 28 May 2026
2026 installation growth
+68.7%
Jan–Mar 2026 versus Jan–Mar 2025DESNZ / MCS ↗Updated 28 May 2026
A recorded subset of the market. These MCS figures cover domestic retrofits in existing UK properties. They exclude unregistered batteries, new-builds and commercial systems, and are not the total UK installed battery base.
LIVE API DATA
Grid right now
Regional selection is not stored. Carbon signals describe grid conditions, not electricity prices.
Loading grid conditions…
OFFICIAL DATA · THROUGH MARCH 2026
Battery installations
Recorded domestic retrofit installations. Each plotted month is complete.
Jan–Mar 202613,634
Jan–Mar 20258,081
Mean sample capacity · all recorded months9.2 kWh
MCS data represents battery installations recorded through the Microgeneration Certification Scheme. It should not be interpreted as the complete UK installed battery population. Mean capacity is calculated from rounded sample totals and matching sample counts.
DESNZ / MCS ↗Updated 28 May 2026
View monthly data and financial-year totals
| Month | Installations | Sample count | Sample MWh |
|---|---|---|---|
| 2023-09 | 405 | 401 | 3.08 |
| 2023-10 | 690 | 685 | 5.44 |
| 2023-11 | 841 | 831 | 6.9 |
| 2023-12 | 527 | 521 | 4.45 |
| 2024-01 | 896 | 889 | 7.07 |
| 2024-02 | 1,202 | 1,192 | 9.67 |
| 2024-03 | 1,151 | 1,141 | 9.24 |
| 2024-04 | 1,334 | 1,318 | 11.12 |
| 2024-05 | 1,552 | 1,527 | 13.6 |
| 2024-06 | 1,523 | 1,495 | 12.84 |
| 2024-07 | 1,807 | 1,782 | 15.26 |
| 2024-08 | 1,526 | 1,501 | 12.68 |
| 2024-09 | 1,843 | 1,814 | 15.48 |
| 2024-10 | 2,300 | 2,261 | 19.65 |
| 2024-11 | 2,385 | 2,360 | 20.33 |
| 2024-12 | 1,891 | 1,862 | 16.15 |
| 2025-01 | 2,519 | 2,489 | 21.36 |
| 2025-02 | 2,672 | 2,637 | 23.34 |
| 2025-03 | 2,890 | 2,850 | 25.47 |
| 2025-04 | 2,841 | 2,783 | 26.33 |
| 2025-05 | 3,327 | 3,265 | 30.53 |
| 2025-06 | 3,259 | 3,197 | 29.57 |
| 2025-07 | 3,470 | 3,391 | 31.71 |
| 2025-08 | 3,231 | 3,144 | 29.91 |
| 2025-09 | 3,726 | 3,660 | 34.91 |
| 2025-10 | 4,059 | 3,957 | 38.23 |
| 2025-11 | 3,717 | 3,627 | 35.53 |
| 2025-12 | 2,769 | 2,681 | 27.86 |
| 2026-01 | 3,402 | 3,303 | 33.32 |
| 2026-02 | 4,458 | 4,330 | 42.93 |
| 2026-03 | 5,774 | 5,565 | 52.92 |
2023/24 (Sep–Mar only)5,712
2024/2524,242
2025/2644,033
OFFICIAL DATA · INSTALLED COST
Battery Cost Tracker
Mean installed cost · 2025-26
£870 per kWh-2.2% versus 2024-25
Median installed cost£890 / kWhMean sample battery capacity9.8 kWh
DESNZ / MCS ↗Updated 28 May 2026
About this data
Capacity and cost use a cleaned sample, not every recorded installation. Published capacity and cost figures are rounded to the nearest 10.
Costs include equipment, installation, grid connection and VAT where applicable. Excludes solar panels, other additional devices and extended warranties. Figures are not inflation-adjusted.
Official statistics in development. Figures can be revised. Rising registrations can reflect increased certification, increased installations, or both.
Mean cost observations: 2024-25: £890/kWh; 2025-26: £870/kWh.
The mean and median are different measures. No all-system average invoice is published here, and multiplying average capacity by average £/kWh would not produce a reliable average invoice. The chart connects two financial-year observations, not monthly estimates.
BATTERY BOOST MARKET DATA
Battery Tariff Market
Indicators calculated from Battery Boost’s battery and solar tariff listings. Supplier eligibility and regional rates apply.
Cheapest qualifying off-peak rate
Quote required
No comparable national battery unit rate is currently recorded. Discounts are not unit prices.Check your regional rates →Highest advertised export tier
25p/ kWh
Good Energy · conditional installation offer12p variable requires Good Energy import supply and half-hourly smart-meter readings. 25p is a fixed 12-month offer for a qualifying Good Energy solar-and-battery installation, reverting to the standard tariff afterwards.
Good Energy ↗Updated 19 Sept 2026
Compare export terms →Battery & solar products tracked
19
17 active listings; includes import, export and managed products.Explore tracked products →Largest qualifying import/export spread: not published. The current records do not verify a compatible pair and permission to export grid-charged energy. The highest advertised solar export tier is not automatically a battery arbitrage rate.
Battery Boost tariff database ↗Updated 24 Sept 2026
Latest individual tariff review: 24 Sept 2026. Listings reviewed between 19 Sept 2026 and 24 Sept 2026. A single complete-scan timestamp is not recorded.
Illustrative battery arbitrage opportunity
10 kWh usable capacity · 90% round-trip efficiency
A per-cycle value will appear only when compatible qualifying import and export rates are verified. For 10 kWh delivered, gross value = (10 × export p/kWh − 10 ÷ 0.9 × import p/kWh) ÷ 100.
Illustrative only, not guaranteed earnings. Excludes standing charges and degradation. Tariff eligibility, battery power and capacity limits, export restrictions and actual household use affect the result.
OFFICIAL BENCHMARK · GREAT BRITAIN
Standard electricity benchmark
Average single-rate electricity prices for customers paying by Direct Debit in England, Scotland and Wales.
CURRENT PERIOD
01 Jul 2026 – 30 Sept 2026
26.11p / kWh57.19p daily standing charge
Includes 5% VATNEXT ANNOUNCED PERIOD
01 Oct 2026 – 31 Dec 2026
26.32p / kWh54.83p daily standing charge
Electricity VAT 0% during this periodThe price cap is a benchmark for standard variable electricity pricing. Battery-specific and dynamic tariffs can differ significantly. Regional rates vary. The VAT basis changes between these periods, so they are not directly comparable.
Ofgem · source checked ↗Updated 25 Sept 2026
TRANSPARENCY & METHODOLOGY
About our data
DESNZ / MCS · official data
Domestic retrofit installations in existing UK properties only. Excludes new-build and commercial installations, unregistered systems and records before September 2023.
Capacity and cost use a cleaned sample, not every recorded installation. Published capacity and cost figures are rounded to the nearest 10.
Costs include equipment, installation, grid connection and VAT where applicable. Excludes solar panels, other additional devices and extended warranties. Figures are not inflation-adjusted.
Official statistics in development. Figures can be revised. Rising registrations can reflect increased certification, increased installations, or both.
December 2024 is dated using financial year 2024/25 and the monthly sequence. The workbook Calendar year cell incorrectly reads 2025. Original source values are otherwise retained.
DESNZ / MCS ↗Updated 28 May 2026
Download the source workbook ↗ · Retrieved 25 Sept 2026. Crown copyright, Open Government Licence v3.0.
NESO · live API data
National and regional carbon intensity and generation mix come from the NESO Carbon Intensity API. National values use actual intensity when available, otherwise forecast. Regional values are forecasts. Biomass is included in the renewables total; nuclear is shown separately.
Refreshes at most every 15 minutes per region. Each reading shows its source period and retrieval time above. A refresh failure retains the last successful snapshot and labels it delayed. Charging windows require a forecast at least 20% below current carbon intensity.
NESO source and methodology ↗Ofgem · official benchmark
GB average single-rate Direct Debit electricity prices. Current and next periods switch on their effective dates. A benchmark is never labelled current after its stated end date. Source checked 25 Sept 2026; publication timestamp not supplied on the source page.
Ofgem rates and regional tables ↗Battery Boost · calculated indicators
Uses the same published product records as our Battery Tariff Tracker. Paused and beta products do not enter rate rankings. Ambiguous discounts, credits, variable prices and regional quote-only values are excluded from the charging-rate ranking. Export ceilings retain supplier conditions and are not assumed to be available for grid-charged battery exports.
Latest individual record review 24 Sept 2026. No qualifying import/export pairing has been verified, so no arbitrage figure is published.
View tariff records →Source update status
Official release pages are checked once daily when requested. New releases are reviewed before figures change. A failed check retains the verified data and its original publication date.
Live source-check status is loading or temporarily unavailable. The verified publication dates shown above still apply.