Solar · Battery · EV — Greater London
Solar Panels Barnet
Solar panels, battery storage and EV chargers for homes in and around Barnet — designed from your actual usage, installed by an MCS-certified team, and explained in plain English before you commit to anything.
Advice on solar panels Barnet homeowners can actually use has to start with the house rather than the borough, because Barnet's housing changes sharply from ward to ward. In High Barnet almost a quarter of households live in detached houses; in Barnet Vale, next door, more than a third live in purpose-built flats. The town's past is unusually well recorded, too: the Battle of Barnet 1471 is a registered battlefield on Historic England's list, entered on 6 June 1995, and the Wood Street and Monken Hadley conservation areas both sit within EN5. This page sets out what is genuinely local before anyone talks about panel counts.
On light, the honest local figure comes from the nearest Met Office climate station, at Hampstead to the south, which averaged 1,559 hours of sunshine a year over 1991–2020: workable for a well-sized array, and nothing we would dress up as special. What is particular to Barnet is the land around it. Nearly half of the Chipping Barnet constituency is green belt, and the EN5 postcode district crosses into Hertsmere in Hertfordshire. If a battery is part of your thinking, our battery storage in Barnet page covers that side, and the official price evidence is on our solar panel installation cost page. If the survey says your roof is a poor fit, you will hear that from us.
Quick answer
Solar panels in Barnet:
- Cost: the Energy Saving Trust puts a typical 4.5 kWp home system (around 12 panels) at around £7,600 installed. Your own figure comes from a survey of your roof, not a table.
- Generation: PVGIS 5.3 estimates about 3,959 kWh a year from a 4 kWp south-facing array in Barnet, around 990 kWh per kWp.
- Payback: on the Energy Saving Trust's table, with export payments and fuel prices as of July 2026, a London home pays back in about 9 years.
- VAT: residential solar installations carry 0% VAT until 31 March 2027, then 5% from 1 April 2027.
- Battery: the Energy Saving Trust puts a 5 kWh battery at around £4,600; fitting it with the panels costs less than a separate visit later.
- Who fits it: HCE is a NAPIT member (73495), MCS-certified for solar PV via NAPIT, and a HIES Consumer Code member. Check both registers yourself.
Figures: Energy Saving Trust (solar, updated 27 August 2026; batteries, updated 19 August 2026) · HMRC VAT Notice 708/6 · PVGIS 5.3 (European Commission Joint Research Centre), run 2026-10-15. Each is cited in full further down this page.
Solar on Barnet's housing
Barnet borough as a whole is flat-heavy: at the 2021 Census, 36.6% of its 148,917 households lived in purpose-built flats, 27.5% in semis, 14.9% in terraces and only 10.1% in detached houses. The wards around the town read differently. High Barnet is 23.7% detached, 24.7% semi-detached and 20.2% terraced, with purpose-built flats at 20.7%; Underhill has the most terraces of the four town wards at 22.6%; and East Barnet is led by semis at 36.4%. Ownership follows the houses. 67.6% of High Barnet households own their home, 36.0% outright, against 52.7% across the borough, so on these streets the person weighing a long-payback roof investment is usually the person who owns the roof. Underhill is the exception worth noting: 24.0% of its households rent socially, which puts those roofs in a landlord's hands.
Planning here turns on two designations. Wood Street and Monken Hadley are among Barnet's 16 conservation areas and both carry Article 4 directions, but the council's own records on the government's planning data platform do not list the solar class (Part 14, Class A of the permitted development order) among the rights those directions remove. Under the current national text, the conservation-area exclusion applies only to equipment on a wall, balcony or roof enclosure fronting a highway; roof slopes remain permitted development provided panels stand no more than 0.2 m proud and no higher than the highest part of the roof (excluding chimneys), and a flat-roof array needs a prior-approval check first. The second designation is green belt, which covers 46.4% of the Chipping Barnet constituency. Green belt is not one of the 'article 2(3)' designations that tighten the solar rules, so on its own it does not remove a house's roof-mounted rights. Listed houses are different everywhere: they have no permitted development rights for solar, and listed building consent is needed.
What London Borough of Barnet is doing
Barnet Council declared a climate emergency in May 2022, committing to becoming a net zero council by 2030 and a net zero borough by 2042, as the council's October 2023 motion recommitting to those dates records. Its June 2023 sustainability report set the ambition of becoming 'one of London's most sustainable boroughs' and took forward recommendations from the borough's first Citizens' Assembly of 40 residents and a Young People's Assembly of 20; the young people's list included making housing more sustainable by installing solar panels. That is a direction of travel rather than a grant, and in a ward like High Barnet, where two-thirds of households own their home, most solar decisions remain private ones.
For households, two London-wide routes are worth knowing. Barnet is a member of the Greater London Authority's consortium for the Warm Homes: Local Grant, the income-linked scheme for privately owned homes at EPC D to G whose suggested improvements can include solar panels; GOV.UK's list, updated 2 July 2026, shows £53,470,024 for the London consortium. The group-buying route is paused locally: Switch Together, formerly Solar Together, says on its Barnet page that it is not active in the area at the moment and invites residents to register for the next scheme. One Barnet-specific wrinkle: an EN5 address on the Hertsmere side of the boundary is a Hertsmere Borough Council matter, not a Barnet one, so check which authority's planning rules and schemes apply to your street.
What solar costs on a Barnet home
The honest national anchor is the Energy Saving Trust's: a typical domestic system is around 4.5 kWp — roughly around 12 panels over 20 to 30m² of roof — and costs around £7,600 installed. On their payback table, with export payments and fuel prices as of July 2026, London homes sit at about 9 years. In High Barnet ward, 68.6% of households live in detached, semi-detached or terraced houses (Census 2021, our sum), so most homes there have a pitched roof of their own to set against that national figure; in Barnet Vale, where 37.2% live in purpose-built flats, the first question is who controls the roof.
Two things move that number for everyone. Residential installations carry 0% VAT until 31 March 2027, reverting to 5% from 1 April 2027. And 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. A quote should itemise the panels, inverter, mounting, scaffolding, labour, commissioning, warranties and the DNO notification, so you can see what the total is made of — ours does, and it comes from a survey of your actual roof and usage, not from a table.
Sources: Energy Saving Trust — Solar panels: costs, savings and benefits explained (updated 27 August 2026) · HMRC — VAT on energy-saving materials and heating equipment (VAT Notice 708/6) · Ofgem — Smart Export Guarantee.
When we'd tell you not to fit solar in Barnet
A persistently shaded roof, a slope that faces mostly north, a listed building where consent will not carry the fixings, or a home whose daytime usage is so low that almost everything would be exported at a supplier-set rate — in those cases we will say so at the survey rather than sell you a system that under-delivers. Fabric-first improvements sometimes beat panels as the first spend, and we would rather tell you that than not.
Whoever you use, check the registers yourself: HCE is NAPIT member 73495 and an HIES Consumer Code member (HCE/A/1392), with MCS certification for solar PV via NAPIT — the certification an MCS-certified install needs for Smart Export Guarantee payments.
What a Barnet roof actually generates
Rather than quote a generic yield, we ran the European Commission's PVGIS 5.3 (European Commission Joint Research Centre) for Barnet itself. A 4 kWp array at 35° facing due south, with 14% system losses, is estimated at about 3,959 kWh a year — around 990 kWh per kWp — with a year-to-year variation of roughly ±162 kWh (PVGIS-SARAH3, 2005–2023). East- or west-facing slopes generate less, and shading changes the answer more than the town does; that is exactly what the survey measures.
Method: PVGIS 5.3 (European Commission Joint Research Centre), 4 kWp, 35° tilt, due south, 14% system losses, building-mounted, run 2026-10-15.
Local facts, sourced
Barnet in numbers
Every figure below comes from a named public source — the same standard we hold our savings estimates to.
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The nearest Met Office climate station to Barnet, at Hampstead, averaged 1,559 hours of sunshine a year over 1991–2020, from about 200 hours in July to about 54 in December.
Source: Met Office — Hampstead location-specific long-term averages, 1991–2020 (metoffice.gov.uk, station gcpv7fnqu)
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In High Barnet ward, 23.7% of households live in detached houses, 24.7% in semis and 20.2% in terraces, against 20.7% in purpose-built flats; 67.6% own their home (36.0% outright), compared with 52.7% across the borough.
Source: ONS Census 2021, TS044 accommodation type and TS054 tenure, High Barnet ward (E05013644) and Barnet (E09000003), via the Nomis API
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The four Census 2021 wards of High Barnet, Barnet Vale, Underhill and East Barnet had 59,314 usual residents between them (our sum of the four ward counts), in a borough of 389,344.
Source: ONS Census 2021, TS001 usual residents, ward and local-authority counts, via the Nomis API
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46.4% of the Chipping Barnet constituency (1,860 of its 4,020 hectares) is designated green belt, against 27.5% of Barnet borough and 22.1% of London, as at 31 March 2025.
Source: MHCLG — Local authority green belt statistics for England 2024-25, live tables (Area by PCON; Area by LA)
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Homes in the Chipping Barnet constituency have a median EPC score of 69, the bottom of band C, with 51.8% rated C or above; the median detached and semi-detached house both score 62 (band D), against 74 for flats.
Source: ONS — Energy efficiency of housing in England and Wales, EPC records to March 2025 (released 28 October 2025), tables 4a and 4b
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Wood Street and Monken Hadley are two of Barnet's 16 conservation areas and both carry Article 4 directions; Barnet's records do not list the solar class (Part 14, Class A) among the rights those directions remove.
Source: planning.data.gov.uk — conservation-area and article-4-direction-area datasets, London Borough of Barnet
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The Battle of Barnet 1471 is a registered battlefield: Historic England list entry 1000001, registered on 6 June 1995.
Source: planning.data.gov.uk — battlefield dataset, entity 1400001 (Historic England Register of Historic Battlefields)
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The EN5 postcode district is split between the London Borough of Barnet and Hertsmere in Hertfordshire, and EN4 also reaches into Enfield and Hertsmere.
Source: postcodes.io outcode lookups for EN4 and EN5 (ONS Postcode Directory data)
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Barnet town centre sits inside UK Power Networks' Eastern (EPN) licence area rather than its London (LPN) area; UKPN automatically approves home solar and battery applications whose maximum export is under 5 kW.
Source: UK Power Networks Open Data — licence boundaries dataset (town-centre point check); UKPN, Solar and storage: cost, time and what's involved
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Barnet Council declared a climate emergency in May 2022, committing to a net zero council by 2030 and a net zero borough by 2042.
Source: London Borough of Barnet — council motion 'Recommitment to Net Zero', 17 October 2023 (barnet.moderngov.co.uk)
Data last reviewed: October 2026
Where we work around Barnet
We quote for homes in and around Barnet, including High Barnet, New Barnet, East Barnet, Arkley, Monken Hadley and Underhill, across the EN4, EN5 postcode districts. Every quote starts with a free survey of your actual roof and usage — if solar wouldn't pay its way on your home, we'll say so plainly. Try the numbers first on our savings calculator, or read how we approach installations across North London.
If you are weighing storage as well, our page on battery storage in Barnet sets out what a battery does on a Barnet roof through the year, and what it costs. For a longer local read, see Barnet EV drivers: can solar panels charge the car?.
Barnet solar questions
Do I need planning permission for solar panels in Barnet's conservation areas?
Usually not for a roof install. Wood Street and Monken Hadley both have Article 4 directions, but Barnet's own records on the government's planning data platform do not list the solar class (Part 14, Class A) among the rights they remove. Barnet notes that it translated the old directions' classes into modern ones, so the direction itself is the document to check for your street. Nationally, the conservation-area exclusion now covers equipment on a wall, balcony or roof enclosure fronting a highway; roof slopes stay permitted development within the 0.2 m and roof-height limits, and a flat-roof array needs a prior-approval determination first. A listed house has no permitted development rights for solar and needs listed building consent. We check all of this before quoting, not after.
Does the green belt around Barnet stop me fitting solar?
Not on its own. Green belt covers 46.4% of the Chipping Barnet constituency, 1,860 hectares on the government's March 2025 figures, but it is not one of the 'article 2(3)' designations (conservation areas, National Parks, areas of outstanding natural beauty and similar) that tighten the solar rules. A house in the green belt therefore keeps its roof-mounted permitted development on the usual conditions. Panels on a stand-alone frame in the garden fall under a separate class with its own limits, and an EN5 address on the Hertsmere side of the boundary deals with Hertsmere Borough Council rather than Barnet for planning.
What would a 4 kWp system generate on a Barnet roof, and what does it cost?
PVGIS 5.3, the European Commission's solar model, gives roughly 3,959 kWh a year for a 4 kWp array on a south-facing 35° roof in High Barnet, building-mounted with 14% system losses: close to 990 kWh for every kWp. That is an average across the PVGIS-SARAH3 years 2005–2023, and individual years moved by about ±162 kWh either side of it (our run, 15 October 2026). Ofgem's typical household uses 2,500 kWh of electricity a year on its value from 1 July 2026, which gives a sense of scale. The Energy Saving Trust's cost benchmark is around £7,600 for a 4.5 kWp, twelve-panel system, and fitting panels to a home is zero-rated for VAT until 31 March 2027, with 5% from 1 April 2027. Barnet's detached and semi-detached roofs differ a great deal in shape and shading, so a survey, not this average, sets your figure.
Is there a council-backed solar scheme in Barnet at the moment?
Not a group-buying round. Switch Together, the scheme formerly called Solar Together, says on its Barnet page that it is not active in the area at the moment and invites residents to register to hear when the next scheme launches. England has no general government grant for household solar. What exists is income-linked: the Warm Homes: Local Grant, delivered in Barnet through the Greater London Authority's consortium, for privately owned homes at EPC D to G that meet an income, postcode or benefits test, and ECO4, which runs until 31 December 2026. You can register for a future round and still get an independent quote now; one does not rule out the other.
Nearby
We also cover solar panels in Borehamwood, solar installation Potters Bar and Finchley solar and battery installers.
Also for Barnet homes
Solar is usually the first step, not the last. If you are set on a particular battery, we can talk you through Powerwall storage; if you are wondering whether a battery would pay its way, we can talk you through solar battery installation; if you are charging a car at home, we can talk you through home EV charger installation; and if you are comparing battery brands, we can talk you through Sigenergy batteries. Every one of them starts the same way — a free survey of your actual roof, usage and property, and a straight answer about whether it is worth doing.