Solar · Battery · EV — Hertfordshire
Solar Panels Hatfield
Solar panels, battery storage and EV chargers for homes in and around Hatfield — designed from your actual usage, installed by an MCS-certified team, and explained in plain English before you commit to anything.
The solar panels Hatfield households can realistically fit depend less on the weather than on the town's history. Hatfield is one of Welwyn Hatfield's two New Towns; de Havilland moved its aircraft manufacturing here in 1934, and aircraft manufacture ended in 1993 when the site was sold for a business park and housing. Today the University of Hertfordshire is the town's largest employer. Around Old Hatfield the historic core is a conservation area; beyond it, terraces and flats make up six in ten homes across the town's four wards, and more households rent than own. All of that decides who can say yes to panels before anyone looks at a roof.
We quote for homes in and around Hatfield, including Old Hatfield, South Hatfield, Ellenbrook, Roe Green, Birchwood, Oxlease, Hatfield Garden Village and Welham Green. Where you own a house with a workable roof, the questions are the familiar ones: orientation, shading, how you use electricity and whether a home battery in Hatfield would earn its keep. Where you rent or own a flat, the first conversation is with the landlord or freeholder, and we will tell you that rather than book a survey you cannot act on. National cost figures are in our solar panel installation cost guide.
Quick answer
Solar panels in Hatfield:
- 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 3,965 kWh a year from a 4 kWp south-facing array in Hatfield, around 991 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 Hatfield's housing
On our own sum of the ONS ward figures for the four Hatfield wards (Central, East, South West and Villages), the 12,793 households at the 2021 Census were 33.4% in terraced houses, 27.5% in purpose-built flats, 25.1% semi-detached and just 11.8% detached. Tenure is the striking number: only 44.0% own their home (18.7% outright, 25.3% with a mortgage), while 27.5% rent from a social landlord, 18.3% from the council itself, and 26.8% rent privately. That is well below the 56.6% owner-occupation across Welwyn Hatfield as a whole, and it means that for more than half of Hatfield's households the decision on solar rests with someone else.
The flip side is efficiency. ONS puts Welwyn Hatfield's median EPC score at 71, band C, and the borough's terraced houses at 70, also band C, with semis at 69 and flats at 76; detached houses are the weak spot at 66. On planning, the Old Hatfield historic core is one of the borough's ten conservation areas, designated in 1968, and under the national rules as amended from 27 August 2026 a roof slope there remains permitted development, while walls fronting a highway are excluded and flat roofs need prior approval. Hatfield's two town-wide Article 4 Directions, on converting homes into HMOs (confirmed April 2011) and on adding storeys to blocks of flats (June 2022), are not about solar, though the council notes that older, historic directions are also in place, so an address check comes first. Listed buildings need listed building consent.
What Welwyn Hatfield Borough Council is doing
Welwyn Hatfield Borough Council is committed to net zero as a council by 2030 and as a borough by 2050, and sets out how it intends to get there in its Transition to Net Zero Strategy, supported by a climate change action plan and a public Climate Hub that reports progress. The council's own description of the borough records that 76.7% of it is green belt, the same figure the government publishes, which shapes development around Hatfield but is not one of the designations that tighten the solar rules on an existing roof.
On schemes, the council has £1.5 million of Warm Homes: Local Grant funding, delivered with the National Energy Foundation, which assesses eligibility and coordinates the work, for homeowners and private tenants at EPC D to G who meet an income, benefit or area test, with up to £30,000 of fully funded improvements per home. The council's Climate Hub lists insulation, draught-proofing, heating controls, double glazing and heat pumps as examples; the national scheme's suggested improvements also include solar panels, so it is worth asking. The Solar Together group-buying scheme is not running here at present: the council's Climate Hub says its 2025 round has closed, and Switch Together, as the scheme now trades, says on its Welwyn Hatfield page that it is not active in the area.
What solar costs on a Hatfield 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. Hatfield's housing leans to terraces (33.4% of households across its four wards) and flats (27.5%), on our sum of the Census 2021 ward figures, so the national twelve-panel figure is most comparable on the town's semis and detached homes, while many terrace roofs take fewer panels and a flat begins with the freeholder.
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 Hatfield
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 Hatfield roof actually generates
Rather than quote a generic yield, we ran the European Commission's PVGIS 5.3 (European Commission Joint Research Centre) for Hatfield itself. A 4 kWp array at 35° facing due south, with 14% system losses, is estimated at about 3,965 kWh a year — around 991 kWh per kWp — with a year-to-year variation of roughly ±163 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
Hatfield 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 Met Office's climate station at Rothamsted, west of Hatfield, averaged 1,621 hours of sunshine a year over 1991–2020, with July at around 209 hours and December at around 56.
Source: Met Office — Rothamsted location-specific long-term averages, 1991–2020 (metoffice.gov.uk, station gcpwxyfxf)
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Welwyn Hatfield Borough Council describes Hatfield as one of the borough's two New Towns: de Havilland moved aircraft manufacturing there in 1934, aircraft manufacture ceased in 1993, and the University of Hertfordshire is now the largest employer. The council gives Hatfield's 2021 Census population as 41,265.
Source: Welwyn Hatfield Borough Council — Contaminated land strategy, section 4 (Description of the Welwyn Hatfield area)
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Across Hatfield's four wards, 33.4% of the 12,793 households live in terraced houses, 27.5% in purpose-built flats, 25.1% in semis and 11.8% in detached houses (our sum of ONS ward figures).
Source: ONS Census 2021, accommodation type (TS044 categories), May 2022 wards Hatfield Central, East, South West and Villages, via the ONS Census API; arithmetic ours
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In the same four wards, 44.0% of households own their home, 27.5% rent from a social landlord (18.3% from the council) and 26.8% rent privately (our sum of ONS ward figures).
Source: ONS Census 2021, tenure (TS054 categories), May 2022 wards, via the ONS Census API; arithmetic ours
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Across Welwyn Hatfield as a whole, 56.6% of the borough's 46,209 households own their home and 25.4% rent from a social landlord.
Source: ONS Census 2021, TS054 tenure, Welwyn Hatfield (E07000241), via the Nomis API
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Welwyn Hatfield's median EPC score is 71 (band C); terraced houses score 70, semis 69 and flats 76, while detached houses are lowest at 66, band D.
Source: ONS — Median energy efficiency score, England and Wales, March 2025 edition (released 28 October 2025), tables 2a and 2b
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Welwyn Hatfield has ten conservation areas, including the Old Hatfield historic core, designated in 1968.
Source: Welwyn Hatfield Borough Council — Planning considerations for conservation areas; planning.data.gov.uk conservation-area record, Old Hatfield
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Hatfield's town-wide Article 4 Directions cover converting homes into HMOs (confirmed April 2011) and adding storeys to blocks of flats (confirmed June 2022); neither concerns solar, and the council notes older, historic directions too.
Source: Welwyn Hatfield Borough Council — Article 4 Directions (welhat.gov.uk/planning-policy/article-4-directions)
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Welwyn Hatfield Borough Council is committed to net zero as a council by 2030 and as a borough by 2050, through its Transition to Net Zero Strategy.
Source: Welwyn Hatfield Borough Council — Transition to Net Zero Strategy (welhat.gov.uk/strategies/climate-change/preface)
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76.7% of Welwyn Hatfield borough (9,930 of 12,950 hectares) is designated green belt, as at 31 March 2025.
Source: MHCLG — Local authority green belt statistics for England 2024-25, live table Area by LA (published 9 October 2025)
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The council has £1.5 million of Warm Homes: Local Grant funding, delivered with the National Energy Foundation, offering eligible homes up to £30,000 of fully funded energy-saving improvements.
Source: One Welwyn Hatfield Climate Hub — Warm Homes Local Grant Fund; GOV.UK — Warm Homes: Local Grant successful local authorities (updated 2 July 2026)
Data last reviewed: October 2026
Where we work around Hatfield
We quote for homes in and around Hatfield, including Old Hatfield, South Hatfield, Ellenbrook, Roe Green, Birchwood, Oxlease, Hatfield Garden Village and Welham Green, across the AL9, AL10 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 Hertfordshire.
If you are weighing storage as well, our page on battery storage in Hatfield sets out what a battery does on a Hatfield roof through the year, and what it costs. For a longer local read, see How much does solar make in Hatfield in December?.
Hatfield solar questions
Do I need planning permission for solar panels in Old Hatfield?
Usually not for a roof slope, even inside the Old Hatfield conservation area. Under the national rules as amended from 27 August 2026, roof-mounted panels on a house in a conservation area remain permitted development within the size limits; the exclusion covers equipment on a wall, balcony or roof enclosure fronting a highway, and a flat-roof array needs a prior-approval determination first. Listed buildings need listed building consent. Hatfield's two current town-wide Article 4 Directions cover HMO conversions and extra storeys on blocks of flats, not solar, but the council also holds older directions, so we check your address before designing anything.
I rent my home in Hatfield. Can I get solar panels?
Not on your own, but it is worth raising. Across Hatfield's four wards, 27.5% of households rent from a social landlord and 26.8% rent privately, more than own their home, so this is the most common situation in the town. For a council or housing association home, solar is the landlord's decision. Private tenants need the landlord's agreement, and privately rented homes at EPC D to G can qualify for the Warm Homes: Local Grant if the household meets its income, benefit or area test, which can make that decision easier for the landlord.
How much electricity would solar generate in Hatfield, and what does it cost?
PVGIS 5.3, run for Hatfield town centre on 15 October 2026, estimates about 3,965 kWh a year from a 4 kWp array at 35° facing due south, with 14% system losses, roughly 991 kWh per kWp, with a year-to-year variation of about ±163 kWh (PVGIS-SARAH3, 2005–2023). The Energy Saving Trust's typical 4.5 kWp system costs around £7,600 installed, with 0% VAT on residential installations until 31 March 2027. On a Hatfield terrace the roof may take fewer panels than that; the survey sets the size.
Is there a grant for solar panels in Hatfield?
There is no general grant, but there is an income-linked one. Welwyn Hatfield Borough Council has £1.5 million of Warm Homes: Local Grant funding, delivered by the National Energy Foundation, offering up to £30,000 of fully funded improvements per eligible home. You need a privately owned or privately rented home with an EPC of D to G, and household income of £36,000 or less, a means-tested benefit, or an address in an area of higher need. The council's examples focus on insulation, heating and glazing; solar panels are among the national scheme's suggested improvements, so ask. The Solar Together group-buying scheme is not active in Welwyn Hatfield at present; the council says its 2025 round has closed.
Nearby
We also cover solar panels in Welwyn Garden City, solar installation Potters Bar and St Albans solar and battery installers.
Also for Hatfield homes
Solar is usually the first step, not the last. If you are comparing battery brands, we can talk you through Sigenergy storage systems; if you are set on a particular battery, we can talk you through Tesla Powerwall; if you are wondering whether a battery would pay its way, we can talk you through home battery storage; and if you are charging a car at home, we can talk you through a home EV charge point. 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.