Battery storage — Hampshire
Fox ESS Battery Storage in Hampshire
What Fox ESS means for a Hampshire home, how it compares with the systems we fit, and a written answer on supply, installation and warranty if it is the one you want.
This page covers Fox ESS batteries for homes in the Hampshire towns on our site, from Farnborough and Fleet to Basingstoke, Alton and Petersfield, setting the manufacturer’s published figures against each council’s own data. Start with the Fox ESS range for the product detail, solar panels in Hampshire for the roof, and the battery storage guide for sizing.
The battery system in HCE’s own job photos is EnSmart; if Fox ESS is what you want, ask us and we will confirm in writing how it would be supplied, who installs and commissions it, and what warranty attaches. The town pages for battery storage in Basingstoke, home batteries in Fleet and Petersfield battery installation advice carry each council’s figures.
Quick answer
Fox ESS in Hampshire:
- Our own work: the battery systems in HCE's own job photos are EnSmart; if Fox ESS is what you want, ask us and we will confirm in writing how it would be supplied, who installs and commissions it, and what warranty attaches.
- Cost: the Energy Saving Trust puts home battery storage at £1,500 to £10,000, with a 5 kWh system at around £4,600; a quote for your home comes from a survey of your usage.
- VAT: residential battery installations carry 0% VAT until 31 March 2027, then 5% from 1 April 2027.
- Grid: every battery is notified to, or approved by, the local network operator depending on its size (G98 or G99); the installer handles it.
- Power cuts: a standard grid-tied battery shuts down when the grid does; backup has to be designed in and is never assumed.
- 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. Product facts are the manufacturer's, cited below.
How a home battery gets fitted in Hampshire
Four steps from first call to switch-on. No pressure at any stage, and a straight answer if it would not pay its way.
- Step 1
Your usage, not a guess
We look at when your Hampshire home uses power, especially evenings, and your tariff, because that, not the sunniest month, decides the battery size.
- Step 2
Sizing and siting
Where the unit can go (garage, utility room or an outside wall, as the manufacturer allows), whether it pairs with existing panels, and a written, itemised quote.
- Step 3
Installation and notification
Fitting and commissioning, with the battery notified to or approved by your network operator depending on its size. Backup in a power cut only if it is designed in.
- Step 4
Settings and handover
Charge and discharge set up around your tariff, the app explained, and the warranty documents in your hand.
How Fox ESS fits Hampshire homes
North Hampshire’s housing is mostly houses. Basingstoke’s expansion estates, Oakridge, Popley, Brighton Hill and Hatch Warren among them, give an EPC-register mix of roughly 30% detached, 28% semi-detached, 22% mid-terrace and 15% end-terrace, and 75.7% of Hart district’s households own their home. That combination matters for Fox ESS: the H1-G2 inverter is wall-mounted at 22 kg, the EP5 battery wall- or floor-mounted at about 50.5 kg, and both are published as IP65 for outdoor use, so an estate house without a garage can often take the system on a side or rear wall. Petersfield is different: the whole town sits inside the South Downs National Park, where the National Park Authority is the planning authority, so any external work there is worth checking with it first.
Every Hampshire town on this site has its centre in SSEN’s Southern Electric Power Distribution area, and Farnborough’s is about 3.4 km from UK Power Networks’ boundary. G98 covers equipment up to 16 A per phase (3.68 kW), notified by the installer before commissioning or within 28 days after; above that a G99 application is approved before work starts, and SSEN says it aims to answer fast-track small-generation applications within 10 working days. Fox ESS lists its 3.7 kW H1-G2 at 3,680 VA for G98. The 4.6, 5.0 and 6.0 kW models suit bigger arrays, and they put the job on the G99 route.
Hampshire: sunshine, the grid and local uptake
PVGIS puts a 4 kWp south-facing array at about 136 to 139 kWh in December across Farnborough, Fleet, Basingstoke, Aldershot, Alton and Petersfield, and about 482 to 506 kWh in June, Petersfield at the top of both. That is about 4.4 to 4.5 kWh a day in December and 16.1 to 16.9 kWh a day in June (our arithmetic), so one 5.18 kWh EP5 holds a winter day’s output but not a summer one.
DESNZ records about 18,659 solar PV installations across Rushmoor, Hart, Basingstoke and Deane and East Hampshire at the end of 2025 (our sum), 7,356 of them in East Hampshire alone. DVLA records about 17,497 privately kept plug-in vehicles across the same four councils at the end of June 2026, up from 12,452 a year earlier. Ofgem’s 2024/25 figures for Southern Electric Power Distribution show about 41.8 supply interruptions per 100 customers and 51.2 minutes lost per customer, against 39.7 and 35.1 across Great Britain; a Fox ESS system covers nominated circuits in a cut only if EPS backup is designed in.
Local facts, sourced
Fox ESS and Hampshire in numbers
Every figure below comes from a named public or manufacturer source.
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PVGIS puts a 4 kWp south-facing array in Petersfield at about 139 kWh in December and 506 kWh in June; in Farnborough about 138 kWh and 483 kWh.
Source: PVGIS 5.3, European Commission Joint Research Centre (PVGIS-SARAH3 2005–2023), 4 kWp, 35°, due south, 14% losses, building-mounted, run 15 October 2026; daily figures are our arithmetic
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DESNZ records 7,356 solar PV installations across East Hampshire and 5,437 across Basingstoke and Deane at the end of 2025; with Rushmoor and Hart, about 18,659 (our sum).
Source: DESNZ, Renewable electricity by local authority 2014 to 2025, Solar PV sites (published 29 September 2026, end-of-2025 figures as first published); totals are our sums
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DVLA records 6,203 privately kept plug-in vehicles across Basingstoke and Deane at the end of June 2026, up from 4,382 a year earlier; Rushmoor’s privately kept figure is 2,201, up from 1,491.
Source: DfT and DVLA, VEH0142 licensed plug-in vehicles by local authority, private keepers, 2026 Q2 against 2025 Q2 (published 23 September 2026); totals are our sums
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All six Hampshire town centres on this site sit in SSEN’s Southern Electric Power Distribution area; Farnborough’s is about 3.4 km from UK Power Networks’ South Eastern boundary.
Source: NESO GB DNO licence areas (May 2024); SSEN Distribution, Who we are
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Ofgem’s 2024/25 figures for Southern Electric Power Distribution: about 41.8 supply interruptions per 100 customers and 51.2 minutes lost per customer, down from 51.3 and 57.6 in 2023/24.
Source: Ofgem, RIIO-2 Electricity Distribution annual report 2024 to 2025, supplementary datafile, sheet Ch2 outputs - reliability (published 15 January 2026)
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75.7% of Hart district households owned their home at Census 2021, against 65.7% across the South East and 61.3% in England.
Source: ONS — How life has changed in Hart: Census 2021
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Petersfield lies wholly inside the South Downs National Park, whose National Park Authority has been the statutory planning authority for the whole park since April 2011.
Source: RUN11 claims table: South Downs National Park Authority, Small-Scale Renewable Energy Technical Advice Note (April 2022, updated December 2025)
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DESNZ estimates about 17.18% of homes in East Hampshire and 16.93% in Basingstoke and Deane have no mains gas connection (2024).
Source: DESNZ, Subnational estimates of properties not connected to the gas network, 2024 (published 18 December 2025)
Data last reviewed: October 2026
Battery storage across Hampshire
Town by town, with each town's own sunshine figures and network operator: battery storage in Farnborough, battery storage in Fleet, battery storage in Basingstoke, battery storage in Aldershot, battery storage in Alton and battery storage in Petersfield.
The full specification is on our Fox ESS page. For how sizing, warranties and pairing with panels work, see our main battery storage guide, and for the wider area, solar panels across Hampshire. For a longer read, see Five battery brands for Hampshire homes: a grid-first guide.
Comparing systems for a Hampshire home? See EnSmart in Hampshire, Tesla Powerwall in Hampshire, Sigenergy in Hampshire and EcoFlow PowerOcean in Hampshire.
Fox ESS in Hampshire: questions
Can a Fox ESS system go on the outside wall of a Basingstoke estate house?
Usually it can be considered. Fox ESS publishes the EP5 battery and the H1-G2 inverter as IP65-rated and suitable for outdoor installation, and the inverter is wall-mounted at 22 kg. What decides it is the wall itself, the cable route to the consumer unit, and the 300 mm of clearance around the battery that Fox ESS’s warranty asks for. An EP5 charges between 0 and 55°C, so on a cold north-facing wall the EP5-H heater variant or the EP6 or EP12 with built-in warming is worth asking about.
Who handles the grid paperwork for a Fox ESS battery in Hampshire?
The installer, with SSEN. The six Hampshire town centres on this site are all on SSEN’s Southern Electric Power Distribution network. A system up to 16 A per phase (3.68 kW) is notified around commissioning under G98; anything larger needs SSEN to approve a G99 application before work starts, and SSEN says it aims to answer fast-track applications within 10 working days. Fox ESS lists the 3.7 kW H1-G2 at 3,680 VA for G98.
Does living in the South Downs National Park change a Fox ESS install in Petersfield?
It changes who you ask, not the product. Petersfield is wholly inside the South Downs National Park, and the National Park Authority, not East Hampshire District Council, is the planning authority there; its renewable-energy advice note says to check before work starts. For any external wall-mounted unit, and especially on a listed building or in a conservation area such as The Square, ask the Authority first.
What does the Fox ESS inverter warranty depend on?
A connection, made in time. Under Fox ESS’s current inverter warranty policy (V2.3, October 2025) the inverter carries 10 years only if the system is connected to Fox Cloud within 120 days of installation and kept connected; otherwise the term reduces to 5 years. In a detached Fleet or Alton garage away from the router, that means checking the WiFi signal at the inverter before it goes on the wall.