Any home charger fitted on an Edgware driveway since 30 June 2022 has had to be smart. That word gets used loosely, so it helps to know what the law actually makes the charger do, because some of it happens whether you set it up or not. For an HA8 semi whose car sleeps on the drive, the useful part is the default schedule, and what it means for the main fuse and the electricity bill.
This guide explains the Electric Vehicles (Smart Charge Points) Regulations 2021 in plain terms, then how scheduling interacts with tariffs and with the busy supply of a family semi, the largest housing type in all three Edgware wards. For the job itself, from the wall position to the circuit, see our guide to getting an EV charger on an Edgware driveway.
What the regulations require
GOV.UK’s guidance on the regulations, read on 19 October 2026, lists what a home charge point sold since 30 June 2022 must include: smart functionality, meaning the ability to send and receive information; the ability to respond to signals that change the charging rate or timing; a user interface; a measuring system that records the electricity imported or exported; and a randomised delay. Security requirements consistent with the cyber security standard ETSI EN 303 645 followed on 30 December 2022. The charger must also keep charging if it loses its connection to a communications network. On an Edgwarebury semi, where the charger usually sits on a side or front wall away from the router, that matters: EnSmart’s SmartBee-M, the charger we fit, offers Ethernet as well as WiFi, plus OCPP 1.6 support, RFID access cards and an LCD status screen on its UK distributor’s listing.
The default hours, and changing them
Regulation 10 requires pre-set default charging hours outside the peak hours, which it defines as 8am to 11am and 4pm to 10pm on weekdays. In the default mode, the charger charges the car during those hours regardless of when it was plugged in. On first use, the owner must be offered the choice to accept the pre-set hours, remove them or set different ones, and can change or remove them at any time afterwards. You can also override the default for a single charge. The rule is national, so it reads the same whether your Edgware house sits on the Barnet or the Harrow side of the line; neither council sets charging hours.
In practice, a car pulled onto the drive of an Edgwarebury semi at six on a weekday evening will, if the defaults are kept, wait until the evening peak has passed. Where the car leaves before the defaults have finished, setting the window to match your tariff’s cheap hours is a one-off job at handover.
The random delay
Plug-in cars are spreading on both sides of the Edgware boundary: DVLA records 12,097 privately kept plug-in vehicles across Barnet and 7,524 across Harrow at the end of June 2026, up from 10,089 and 5,934 a year earlier. Every one charged on a post-2022 home charger works to the same rule in regulation 11. By default, when charging would start or the charging rate would rise or fall, the charger waits a random period of up to 600 seconds, set to the nearest second, and the owner can cancel the delay each time. It is why a car on the drive sometimes sits for a few minutes before the charger wakes.
What off-peak scheduling is worth
Ownership is high in Edgware: 59.5% of households on the Barnet side own their home, and 62.4% in Edgwarebury (Census 2021). Owners of houses pay for the charger in full, so running costs are where a schedule earns its keep. For a sense of scale, Ofgem’s price-cap unit rate for October to December 2026 is 26.32p per kWh, the average Direct Debit rate, so putting 60 kWh into a car at that rate costs about £15.79 on our arithmetic. Off-peak EV tariffs price overnight units below the capped rate. Rates and windows are set by each supplier and change, so we do not print them; what matters is that the charger’s schedule matches the cheap window on your bill rather than the regulations’ default.
Schedules and the main fuse on an Edgware semi
The regulations’ peak hours line up with a busy house. A 7 kW charger draws 32 A continuously, and domestic main fuses are commonly 60 A, 80 A or 100 A. An Edgware semi with an electric shower and oven on a 60 A fuse can be tight at teatime, which is inside the 4pm to 10pm peak. A schedule that starts later helps, but it does not replace load management: a current sensor on the incoming supply that lets the charger take only spare headroom whenever the house is busy. Where that is not enough, UK Power Networks says it can upgrade a main fuse from 30 or 60 A to 80 or 100 A. Edgware town centre is in its Eastern Power Networks licence area on both the Barnet and Harrow sides.
Solar and storage alongside the schedule
A south-facing Edgware roof shifts the picture in summer only. PVGIS puts an unshaded 4 kWp array in Edgware at about 474 kWh in June and 138 kWh in December, so a schedule that suits overnight charging in winter may give way to daytime charging from surplus solar in June, where the setup is compatible. If you want cheap overnight units to run the house as well as the car, our page on battery storage in Edgware covers how storage fits alongside.
Costs and grants for Edgware owners
Semi-detached houses are the largest housing type in all three Edgware wards, and owner-occupiers of houses get no government chargepoint grant: the scheme that covered them closed in April 2022, and a home charger installation is standard-rated for VAT at 20%. Renters and flat owner-occupiers with private or allocated parking can still claim, which matters in Harrow’s Edgware ward, where 37.1% of households rent privately. Our guide to who qualifies for the EV chargepoint grant explains each route; claims must be made through an OZEV-authorised installer, so tell us your situation at the quote stage. For what moves the price of the work, see our EV charger installation cost guide.
Sources: GOV.UK, Regulations: electric vehicle smart charge points (read 19 October 2026); The Electric Vehicles (Smart Charge Points) Regulations 2021 (S.I. 2021/1467), regulations 10 and 11, legislation.gov.uk (read 19 October 2026); Ofgem, energy price cap unit rate October to December 2026 (RUN10 claims table); UK Power Networks EV and fuse upgrade guidance (RUN10 claims table); UK Power Networks Open Data licence boundaries (December 2024); ONS Census 2021, TS044 and TS054, Edgware (E05013637), Edgwarebury (E05013638) and Edgware, Harrow (E05013545) wards, via Nomis; GOV.UK, Changes to electric vehicle chargepoint grant schemes from 1 April 2026 (updated 7 July 2026); HMRC, VAT Notice 708/6; EnSmart SmartBee-M specification as listed by its UK distributor; European Commission JRC, PVGIS 5.3 (PVGIS-SARAH3 2005–2023; 4 kWp, 35°, due south, 14% losses; Edgware run 15 October 2026); DfT and DVLA, VEH0142 licensed plug-in vehicles by local authority, 2026 Q2 and 2025 Q2 (published 23 September 2026). The charging-cost figure is our arithmetic.