Battery storage — Surrey
Battery Storage Woking
Home batteries for Woking homes, with or without solar panels — sized from your actual usage, with the costs, the seasons and the power-cut reality explained before you commit to anything.
Battery storage in Woking has an unusual backdrop: this is the borough where the council’s ThamesWey company and engineer Allan Jones built 81 private-wire energy systems, at one point nearly 10% of the UK’s installed solar PV. Today the decision is a household one, and the useful starting point is whether your roof generates already or could. Solar panels in Woking covers that side.
Here we deal with storage itself: where a battery fits in Woking’s evenly split housing, from detached homes in Hook Heath and Pyrford to the flats around Victoria Square; how the network paperwork works; and what the borough’s figures on solar, plug-in cars and gas connections say. The general product and sizing guide is our battery storage page. If a battery would not earn its keep in your home, we will say so.
Quick answer
Battery storage in Woking:
- Cost: the Energy Saving Trust puts home battery storage at £1,500 to £10,000, with a 5 kWh system at around £4,600; your own figure comes from a survey of your usage.
- Seasons: PVGIS estimates a 4 kWp south-facing array in Woking makes about 483 kWh in June but about 136 kWh in December — size the battery for your evenings, not for summer.
- VAT: residential battery installations carry 0% VAT until 31 March 2027, then 5% from 1 April 2027.
- Grid: central Woking is on UK Power Networks's South Eastern Power Networks network; the installer notifies or applies to the operator depending on the system's size.
- Power cuts: a standard grid-tied battery shuts down when the grid does; backup needs to be designed in from the start, and we will tell you whether it is worth it.
- Who fits it: HCE is a NAPIT member (73495), MCS-certified for solar PV and battery storage via NAPIT, and a HIES Consumer Code member.
Figures: Energy Saving Trust (batteries, updated 19 August 2026) · HMRC VAT Notice 708/6 · PVGIS 5.3 (European Commission Joint Research Centre) · Ofgem RIIO-ED2 annual report 2024/25. Each is cited in full further down this page.
Where a battery fits in Woking's homes
Census 2021 records 30.5% of Woking’s 41,439 households in detached houses and 24.7% in semis (ONS, TS044), concentrated in Horsell, Hook Heath, Pyrford, Knaphill and St John’s. These are the homes most likely to have an integral garage or a utility room close to the consumer unit, which is usually where we would put a battery. A loft is not a default: placement is a fire-safety decision made under the manufacturer’s manual and the BSI’s PAS 63100 standard, and the unit has to be reachable for servicing.
At the other end, 18.5% of Woking homes are terraced and 22.7% are in purpose-built flats, a share lifted by town-centre schemes such as Victoria Square’s 429 apartments. A terrace in Old Woking or Sheerwater with no side access may leave a rear external wall as the only sensible spot. In a flat, the freeholder or managing agent must agree first, and with 21.1% of households renting privately in 2021, up from 15.7% in 2011, the landlord’s say often comes before ours. In the borough’s 27 conservation areas, Horsell, Old Woking and St John’s among them, keep any outdoor unit off the street-facing wall and ask the council; for a listed building, ask whether fixing a unit needs listed building consent.
What a Woking roof generates through the year
A battery earns its keep by moving daytime generation into the evening, so the shape of the year matters more than the annual total. We ran the European Commission's PVGIS 5.3 (European Commission Joint Research Centre) for Woking itself, for a 4 kWp array at 35° facing due south with 14% system losses:
- 3,984 kWh a year in total
- 483 kWh in June and 488 kWh in July
- 136 kWh in December and 156 kWh in January
In summer a modest array fills a battery most days; in midwinter it rarely will, and the battery's job shifts to storing cheaper off-peak electricity if your tariff offers it. That is why we size storage from your evening usage and tariff, not from the sunniest month. East- or west-facing roofs and shading change these figures more than the town does — which is what the survey measures.
Method: PVGIS 5.3 (European Commission Joint Research Centre), 4 kWp, 35° tilt, due south, 14% system losses, building-mounted, PVGIS-SARAH3, 2005–2023, monthly output, run 15 October 2026.
The grid and power cuts in Woking
Woking lies close to the line between two electricity network operators’ licence areas, so we confirm the operator for your address from its postcode at survey rather than assuming, and you can check it yourself with the Energy Networks Association’s ‘find my network operator’ tool. Whichever it is, it is told about every battery. Under G98, equipment up to 16 A per phase (3.68 kW) is notified by the installer before commissioning or within 28 days after; above that, a G99 application has to be approved before work starts, and a 4 kW inverter, at 17.39 A, is already over the line.
Woking is a commuter town, and a battery filled during the day and drawn down in the evening suits that pattern. What it will not do by default is cover a power cut: a standard grid-tied battery shuts down when the grid does, whether it sits in a Knaphill garage or a Pyrford utility room. Backup has to be designed in, with a backup-capable inverter or gateway and a dedicated circuit, and it adds cost. If you already have panels, the battery is notified too, and the installer checks whether the property as a whole stays within G98.
Ofgem's reported 2024/25 figures for South Eastern Power Networks show about 42.2 supply interruptions per 100 customers and about 30.4 minutes lost per customer over the year, against 39.7 and 35.1 across Great Britain. Source: Ofgem — RIIO-2 Electricity Distribution: annual report 2024 to 2025, supplementary datafile, sheet "Ch2 outputs - reliability" (CI and CML performance, planned and unplanned).
Local facts, sourced
Woking and home batteries in numbers
Every figure below comes from a named public source.
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DESNZ records 2,879 solar PV installations of all sizes across Woking borough at the end of 2025, with a combined 14.2 MW of capacity.
Source: DESNZ, Renewable electricity by local authority 2014 to 2025, Solar PV sites and capacity (published 29 September 2026, end-of-2025 figures as first published)
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Privately kept plug-in vehicles across Woking borough reached 3,513 at the end of June 2026, against 2,679 a year earlier: 834 more, about 31% up (our arithmetic).
Source: DfT and DVLA, VEH0142 licensed plug-in vehicles by local authority, private keepers, 2026 Q2 against 2025 Q2 (published 23 September 2026)
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DESNZ estimates about 18.36% of homes in Woking borough have no mains gas connection (2024).
Source: DESNZ, Subnational estimates of properties not connected to the gas network, 2024 (published 18 December 2025)
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For Woking, PVGIS estimates about 136 kWh in December and about 483 kWh in June from a 4 kWp south-facing array: December is about 28% of June, roughly 4.4 kWh a day.
Source: PVGIS 5.3, European Commission Joint Research Centre (PVGIS-SARAH3), 4 kWp, 35°, due south, 14% losses, run 15 October 2026; ratios and daily figures are our arithmetic
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Woking’s 41,439 households are 30.5% detached, 24.7% semi-detached, 18.5% terraced and 22.7% in purpose-built flats.
Source: ONS Census 2021, TS044 accommodation type (Woking, E07000217), via Nomis
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Private renting in Woking rose from 15.7% of households in 2011 to 21.1% in 2021, the third-largest percentage-point rise in the South East after Slough and Reading: for many homes, a battery is the landlord’s decision.
Source: ONS, ‘How life has changed in Woking’ (Census 2021)
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Under engineer Allan Jones, Woking installed 81 private-wire decentralised energy systems, at the time nearly 10% of the UK’s total installed solar photovoltaics.
Source: Wikipedia: Allan Jones (engineer) / Association for Decentralised Energy profile
Data last reviewed: October 2026
What a home battery costs in Woking
The honest national anchor is the Energy Saving Trust's: home battery storage ranges from £1,500 to £10,000, a 5 kWh system costs around £4,600, and a typical home system might be 10 kWh. Energy Saving Trust also says there is no exact formula — sizing comes from your own consumption, that a battery's typical lifespan is about 10 to 12 years, and that fitting storage at the same time as panels costs less than a separate visit later.
Residential battery installations carry 0% VAT until 31 March 2027, reverting to 5% from 1 April 2027. Export payments under the Smart Export Guarantee are set by each supplier and must be above zero — they change on short notice, which is why we never print one. Our own price comes from a survey of your usage, tariff and wiring, and arrives itemised — the battery, the inverter or hybrid unit, the network notification, commissioning and warranties as separate lines.
When we would tell you not to: if your evening usage is low, if your tariff gives you little difference between peak and off-peak, or if a smaller solar array would already cover what you use in daylight, a battery can take a long time to pay its way — and we will say so rather than sell you one.
Sources: Energy Saving Trust — Battery storage (updated 19 August 2026) · HMRC — VAT on energy-saving materials and heating equipment (VAT Notice 708/6) · Ofgem — Smart Export Guarantee.
More for Woking homes
Most batteries are fitted alongside panels, so start with what solar panels in Woking would generate on your roof; for the wider picture, see how we approach homes across Surrey, or our main battery storage guide for the products and how sizing works. For a longer local read, see Woking EV owners: does a battery and solar make sense?.
We also cover battery storage in Weybridge, home batteries in Cobham and Guildford battery installation advice.
Woking battery questions
Can I fit a battery in a Woking flat?
Possibly, with consent. 22.7% of Woking households live in purpose-built flats (Census 2021, TS044), including large town-centre blocks such as Victoria Square’s 429 apartments. The freeholder or managing agent has to agree before anything is fixed or wired in, and if you rent, the landlord decides. Even with consent, the unit needs a location that meets the manufacturer’s manual and the PAS 63100 fire-safety standard, which many flats cannot offer. We will tell you at survey if yours is one of them.
Will a battery keep my Woking home running in a power cut?
Only if backup is designed in. A standard grid-tied battery shuts down when the grid does, so a battery in a Horsell or Knaphill home goes off with everything else. A backup system needs a backup-capable inverter or gateway and a dedicated circuit for the things you want kept on, planned from the start and priced as an extra. Tell us what you would want to run and for how long, and we will say whether backup is worth it for you.
Which network operator is told about a battery in Woking?
Your installer confirms that from your postcode. Woking lies close to the line between two network operators’ licence areas, so it is worth checking your address on the Energy Networks Association’s ‘find my network operator’ tool rather than relying on the town name. The rule is the same either way: up to 16 A per phase (3.68 kW) the installer notifies under G98, before commissioning or within 28 days after; above that a G99 application is approved before work starts.
Is a battery worth it with an EV in Woking?
It depends on your evenings. DVLA counts 3,513 privately kept plug-in vehicles across Woking borough at the end of June 2026, up from 2,679 a year earlier. Most EV owners charge the car directly on an off-peak tariff, so the battery’s job is the house’s evening load, not the car. A 7.4 kW charger draws 32 A continuously and most homes have a 60 A, 80 A or 100 A main fuse, so we check the supply and use load management where both are fitted.