Stevenage was designated the first new town on 11 November 1946, and its master plan put housing to the east and industry to the west, in neighbourhoods each planned with their own shops, pub and community centre. The plan was drawn up long before anyone needed to charge a car at home. Eighty years on, where your car spends the night is the first thing that decides how an EV, solar panels and a home battery fit together in a Stevenage home.
Plug-in cars are becoming more common here. DVLA records 1,798 privately kept plug-in vehicles across Stevenage borough at the end of June 2026, up from 1,158 a year earlier: 640 more, a rise of about 55% on our arithmetic. The count is borough-wide, by registered keeper address, and is not a count of chargers or of households with an EV. For the roof side, from the Old Town conservation area to Chells and Symonds Green, see our page on solar panels in Stevenage. This guide takes four parking situations in turn, after the numbers that apply to all of them.
The numbers that do not change with parking
Panels make electricity in daylight. PVGIS 5.3, run for Stevenage on the site’s standard settings, gives a 4 kWp array facing due south about 477 kWh in June and about 136 kWh in December, roughly 15.9 kWh a day in midsummer and 4.4 kWh a day in midwinter on our arithmetic, from an unshaded roof.
A car is a much bigger store than a home battery. At Ofgem’s cap unit rate of 26.32p per kWh for October to December 2026, a 60 kWh charge costs about £15.79, and off-peak EV tariffs price overnight units well below that. The Energy Saving Trust says a typical home battery might be 10 kWh, a sixth of that charge. So in a Stevenage home the battery is not a reservoir for the car: the car charges overnight or from surplus, the battery runs the house through the evening, and the panels feed whichever is set to take priority during the day. In December, 4.4 kWh a day will not go far once the house has taken its share.
If you have a driveway
A home charger is the simple case, and the fuse is the first check. A 7.4 kW charger draws 32 A continuously; most homes have a 60 A, 80 A or 100 A main fuse, and load management, a current sensor on the incoming supply that turns the charger down when the house is busy, usually avoids an upgrade. Our guide to whether your fuse will take a 7 kW charger covers it. Every new chargepoint sold since 30 June 2022 has had to be smart, so it can follow a solar surplus from a Stevenage roof. There is no OZEV grant for owner-occupiers of houses. And the VAT differs on one quote: panels and a battery at 0% until 31 March 2027, the charger at 20%.
If you live in a flat with allocated parking
Flats and maisonettes house 22.9% of households in Stevenage’s built-up area (Census 2021). OZEV’s grant is aimed at this group: renters and people who own and live in flats can get 75% of the purchase and installation cost, up to £500 per socket, if they have private off-street or allocated parking, claimed through an OZEV-authorised installer. Panels and a battery are a separate question, because UK Power Networks says solar or storage work on a multi-occupied building needs the building owner’s permission first.
If you park on the street
Terraced houses are home to 44.9% of households in the built-up area, and for a terrace without a drive the grant route is different. Households with on-street parking only can get up to £500 towards a chargepoint installed with an approved cross-pavement solution, subject to the council’s rules, so Stevenage Borough Council’s position is the first thing to check. Panels and a battery can still make sense on the house itself, where the car charges elsewhere; the battery’s job stays the same, covering the household’s evening use. Our guide to who qualifies for the EV chargepoint grant sets out each case.
If you rent from the council or a housing association
Across Stevenage borough, 20.4% of households rent from the council itself, and 25.3% of households in the built-up area rent from a social landlord (Census 2021). For them, a charger, panels or a battery are the landlord’s decision first. Residential landlords can claim up to £500 per socket from OZEV. For private landlords, Stevenage’s Warm Homes: Local Grant, delivered with the National Energy Foundation, lists solar panels among its measures and can fully fund one eligible home per landlord, with a 50% contribution for further homes; DESNZ’s guidance funds a battery only alongside solar PV, and never a charger.
The paperwork, and power cuts
Stevenage is on UK Power Networks’ Eastern Power Networks area, and the installer notifies it of every new chargepoint. For panels or a battery, the inverter is what counts: up to and including 16 A per phase (3.68 kW) is notified under G98, and anything larger needs a G99 approval before work starts. If a battery is added to panels, the two inverters together are what the network looks at.
One point applies in every Stevenage case. A standard grid-tied battery shuts down in a power cut, even when full, so neither the house nor the charger runs from it during an outage unless backup has been designed in and priced as its own line. Our page on battery storage in Stevenage covers that, and our solar panels in Hertfordshire hub covers the neighbouring towns.
Sources: Stevenage Borough Council, Stevenage Museum, Stevenage New Town; Department for Transport and DVLA, VEH0142 licensed plug-in vehicles by local authority, Stevenage, 2025 Q2 and 2026 Q2 (published 23 September 2026); PVGIS 5.3 (European Commission JRC), PVGIS-SARAH3 2005–2023, 4 kWp, 35°, due south, 14% losses, run 15 October 2026; Ofgem, energy price cap October to December 2026; Energy Saving Trust, Battery storage (updated 19 August 2026); OZEV, Changes to electric vehicle chargepoint grant schemes from 1 April 2026 (updated 7 July 2026); Electric Vehicles (Smart Charge Points) Regulations 2021; ONS, Towns and cities, characteristics of built-up areas, Census 2021 (tables 5c and 6c), Stevenage; ONS Census 2021 TS054 Tenure, Stevenage (Nomis); HMRC, VAT Notice 708/6; UK Power Networks, Solar and storage: cost, time and what’s involved, and Licence Boundaries open dataset (December 2024); Energy Networks Association, EREC G98 Issue 2 (10 March 2025); Stevenage Borough Council, Warm Homes: Local Grant; DESNZ, Warm Homes: Local Grant guidance (updated 2 July 2026).