Before anyone talks about where a charger goes in a Wokingham home, there is a simpler question: can the electricity supply coming into the house take it? A home charger is one of the largest loads a house will ever carry, and it runs for hours at a time. For most homes the answer is yes, but the reasons, and the exceptions, are worth understanding. Our page on EV charger installation in Wokingham covers the job as a whole; this guide is only about the supply.
More Wokingham households are asking. DVLA records 8,175 privately kept plug-in vehicles across Wokingham borough at the end of June 2026, up from 6,025 a year earlier, a rise of about 36% (our arithmetic). And the borough’s housing points to bigger homes with bigger evening loads: 42.7% of its 69,165 households live in detached houses (Census 2021).
The two numbers that matter
A 7.4 kW charger, the usual 7 kW home unit, draws 32 A continuously. The main fuse in most homes is rated at 60 A, 80 A or 100 A. The fuse sits in the cut-out where the supply cable enters the house, and it belongs to the network operator, not to you.
Set those side by side (our arithmetic):
- On a 100 A fuse, the charger takes about a third of the capacity.
- On an 80 A fuse, about two-fifths.
- On a 60 A fuse, more than half, leaving 28 A for everything else in the house.
The last case is where it gets tight. An electric shower, an induction hob and an oven running together on a winter evening can use much of that remaining headroom.
Load management: the usual answer
The standard solution is not a bigger fuse but a smarter charger. Load management puts a current sensor on the incoming supply. When the house is busy, the charger reduces its own current; when the shower goes off, it ramps back up. The car charges a little more slowly for an hour and the fuse never approaches its limit. Our guide to whether your fuse will take a 7 kW EV charger goes into the mechanics.
In a Wokingham house that already has a battery or panels, the survey takes the whole picture into account, because the charger, the battery’s charging and the house can all draw at once. DESNZ records about 5,883 solar PV installations of all sizes across the borough at the end of 2025, as first published, so an existing system is a common starting point here.
Who Wokingham’s network operator is
Wokingham’s town centre is in SSEN Distribution’s Southern Electric Power Distribution area, about 14.8 km from the nearest other licence area, so for RG40 and RG41 the operator is SSEN. SSEN is the network company, not your energy supplier, and you will usually never deal with it directly over a charger: the installer does.
SSEN’s two routes
SSEN’s page on charging at home, read on 19 October 2026, sets out two routes:
- Connect and notify. If the property’s total demand is 60 amps or less and there are no safety concerns, the installer can fit the charger first and submit the notification within 28 days of installation, on a completed ENA form.
- Load check, or apply to connect. If the total demand is more than 60 amps, or the job does not meet any other criterion, the installer must apply to connect and wait for SSEN’s approval before installing.
Where SSEN’s assessment shows the supply needs an upgrade, it says the upgrade must be completed before the charger is installed, and that it arranges any necessary upgrade or unlooping works first. Its page does not give fees or timescales for that work, so we do not quote any; if your job needs it, the request goes to SSEN through your installer and the answer comes from SSEN.
Looped supplies
A looped supply is one where your house shares its service cable with a neighbour’s. SSEN says a looped property needs a load check before installation, to decide whether unlooping is required. At survey we look at the cut-out for signs of a loop, because it changes the order of work: the application comes first and the charger second.
New-builds and the borough’s growth
Wokingham’s population grew 15.0% between 2011 and 2021, the third-largest rise in the South East, and at Arborfield Green around 2,000 homes have been built since first occupation in October 2016. Newer homes tend to have modern consumer units and short runs to the drive. Check first whether the developer fitted a charger or the wiring for one; it changes what the survey needs to look at.
Why 22 kW is rarely the question
A 22 kW charger needs a three-phase supply, which most UK homes lack, and many cars cannot take 22 kW on AC regardless. On a single-phase Wokingham house, the charger to plan for is 7.4 kW. The EnSmart SmartBee-M we fit comes as a 7 kW single-phase model, with a 22 kW three-phase version for properties that genuinely have the supply for it.
What it costs you
If an upgrade or a load-management device is needed, it appears as a line on the written quote, not as a surprise on the day. A home charger installation is standard-rated at 20% VAT. For the wider cost picture, see EV charger installation cost.
Owners of houses, most of Wokingham, get no OZEV grant; renters and people who own and live in flats can get 75% of the cost, up to £500 per socket, with private off-street or allocated parking. The claim must be made through an OZEV-authorised installer; tell us your situation at the quote stage, and see who qualifies for the chargepoint grant. If a battery is part of the plan, our page on battery storage in Wokingham covers it.
Sources: SSEN Distribution, Charging at home (https://www.ssen.co.uk/our-services/new-supplies/ev-connections/), read 19 October 2026; NESO GB DNO licence areas (May 2024) and SSEN Distribution, Who we are; DfT and DVLA, VEH0142 licensed plug-in vehicles by local authority, private keepers, 2026 Q2 and 2025 Q2 (published 23 September 2026); ONS Census 2021, TS044 accommodation type, Wokingham (Nomis); ONS, How life has changed in Wokingham: Census 2021; DESNZ, Renewable electricity by local authority 2014 to 2025, published 29 September 2026; HMRC VAT Notice 708/6; GOV.UK, Changes to electric vehicle chargepoint grant schemes from 1 April 2026 (updated 7 July 2026). Fuse shares are our arithmetic.