Skip to content
Solar panel installation by South Coast Solar Solutions

Hampshire · SO22 and SO23

Solar Panel Installers in Winchester

Solar, battery storage and EV charging in Winchester — designed and installed by a local, MCS-certified team based in Portsmouth.

Free Winchester Quote 24 miles from our base · SSEN grid area

Quick answer

Winchester (SO22/SO23) is in the SSEN area and one of Hampshire's most affluent — and most heritage-sensitive — cities. We design discreet, consent-friendly systems for its extensive conservation areas and listed buildings, and high-output arrays elsewhere.

Winchester is affluent, high-value and unusually heritage-rich — the historic core is one large conservation area with hundreds of listed buildings around the Cathedral and the water meadows. That makes sympathetic, low-impact design essential, and it is exactly where our experience pays off.

A 24-mile drive from base and in SSEN territory, Winchester rewards careful design: discreet all-black systems and rear-slope siting in the centre, larger arrays on the suburban and rural-fringe roofs of Fulflood, Weeke, Stanmore and Twyford.

Solar in Winchester: the local detail

Grid connection (DNO)

Winchester is in the SSEN area. Smaller systems are notified under G98; batteries and larger arrays go through G99 in advance.

Local planning authority

Winchester City Council

Heritage & conservation

The Winchester city-centre conservation area and Cathedral Close are highly sensitive, with extensive listed buildings; Listed Building Consent is often required. All-black, low-profile, rear-slope systems are standard in the historic core.

Local housing stock

Georgian and Victorian town houses in the centre, affluent detached homes in Fulflood, St Cross and Badger Farm, and rural-fringe properties in surrounding villages.

Typical roofs

Heritage slate and clay roofs in the centre needing sensitive fixings; generous, well-oriented suburban and rural roofs elsewhere.

Sunlight & generation

~1,070 kWh/kWp per year; a 4kW array ≈ 3,850–4,150 kWh annually

Areas we cover in & around Winchester

Fulflood · St Cross · Stanmore · Weeke · Badger Farm · Hyde

24 miles — covered on our mid-Hampshire route.

Our Winchester services

FAQ

Solar panels in Winchester: your questions

How much do solar panels cost in Winchester?
A typical home solar system in Winchester (SO22 and SO23) costs from around £5,500–£11,000, depending on size and whether you add battery storage — and residential solar carries 0% VAT. Winchester benefits from strong South-Coast sunlight: ~1,070 kWh/kWp per year; a 4kW array ≈ 3,850–4,150 kWh annually. We provide a fixed, itemised quote after a free, no-obligation survey.
Do I need planning permission for solar panels in Winchester?
Most solar installs are permitted development, but Winchester has heritage considerations — the Winchester city-centre conservation area and Cathedral Close are highly sensitive, with extensive listed buildings; Listed Building Consent is often required. All-black, low-profile, rear-slope systems are standard in the historic core. The local planning authority is Winchester City Council, and we design discreet, consent-friendly systems where needed.
Which electricity network (DNO) covers Winchester?
Winchester is in the SSEN area. Smaller systems are notified under G98; batteries and larger arrays go through G99 in advance. You never have to deal with the network operator yourself — we manage the whole connection process as part of your installation.
How much electricity will solar panels generate in Winchester?
~1,070 kWh/kWp per year; a 4kW array ≈ 3,850–4,150 kWh annually. Your actual output depends on roof orientation, pitch and shading, which we model precisely for your property using satellite imagery and design software.
Which parts of Winchester do you cover?
We install right across Winchester and the surrounding area, including Fulflood, St Cross, Stanmore, Weeke, Badger Farm, Hyde. 24 miles — covered on our mid-Hampshire route.

Solar Panel Installation in Winchester: Conservation Areas, SSEN Grid Approval and What a Winchester Roof Really Produces

Winchester is one of the more interesting places we work, because the thing that decides your installation usually isn't the roof — it's the planning context around it. Large parts of SO23, particularly around the city centre, sit inside conservation areas, and there's a real concentration of listed and period property. That doesn't rule solar out. It shapes it. We specify all-black, low-profile panels that sit tight to the tile line rather than standing proud of it, and wherever the generation numbers still stack up we'll site the array on the rear slope so it isn't visible from the street. On a listed building the conversation has to happen before any design work, and we'll tell you honestly what's likely to be acceptable rather than designing something you then can't put up.

The housing mix across SO22 and SO23 pulls in two directions. SO22, out towards Weeke, Harestock and Stanmore, has more post-war and modern housing — larger, simpler, more predictable roof planes, fewer constraints, and generally the more straightforward installs. SO23 leans older and tighter: Victorian terraces, period cottages, complex roof geometry, and often a smaller usable area than the roof appears to offer from the ground. That's a large part of why we survey properly before quoting anything. The array that fits a Weeke semi is rarely the array that fits a house off Bridge Street.

On the grid side, Winchester falls in SSEN's distribution area, which covers Hampshire along with the Isle of Wight, Dorset and west Surrey. If your system is up to 3.68kW per phase with no battery, it goes through G98 as connect-and-notify. Anything larger — and anything with battery storage or export, which now covers most of what people actually want — needs a G99 application submitted to SSEN and approved before we install. We file it for you, and we file it early, because that approval is usually what sets the timeline rather than the install itself.

On generation, we'd rather give you a range than a number. The South Coast sees roughly 1,050 to 1,150 kWh per kWp per year, so a 4kW south-facing array in Winchester should produce somewhere around 3,900 to 4,600 kWh annually. East or west-facing roofs come in roughly 15 to 20% below that. On export, please ignore any older figures you find online: Octopus Outgoing Fixed now pays 12p per kWh, cut from 15p on 1 March 2026, and open-market flat SEG rates sit around 10.5p to 16.5p. The headline time-of-use rates people quote are closed to new sign-ups.

Practically, Winchester is 24 miles from our base at Victory Business Centre in Portsmouth. That matters more than it sounds. The survey, the install crew and any aftercare visit are all a short drive for us, not a trip we have to batch with other jobs to justify. We're MCS-certified, a Tesla Certified Installer and an Octopus Trusted Partner, and we're a family-run firm — so you'll get the same people from survey through to switch-on. Prices start from £4,995 for solar only and from £12,920 for solar with a Tesla Powerwall 3, all "from", all subject to survey, with bird protection mesh included as standard. Call us on 02392 983 020 and we'll talk through what your roof can realistically do.

  • Conservation-area and listed-building rules across SO23 shape panel choice more than roof size does — all-black, low-profile modules and rear-slope siting are the usual route
  • Winchester sits in SSEN's distribution area, so we file the G99 application with SSEN before any battery or export-capable system goes in
  • A 4kW south-facing array in Winchester should generate roughly 3,900-4,600 kWh a year at South Coast irradiance of ~1,050-1,150 kWh/kWp; east/west roofs give about 15-20% less
  • Octopus Outgoing Fixed pays 12p per kWh (cut from 15p on 1 March 2026); open-market flat SEG rates run roughly 10.5p-16.5p
  • Winchester is 24 miles from our Portsmouth base, so surveys, installs and any aftercare visit are a short drive rather than a scheduled trip
  • Prices start from £4,995 for solar only, from £12,920 for solar with a Tesla Powerwall 3 — all "from", all subject to survey, with bird protection mesh included as standard
Can I put solar panels on a house in Winchester's conservation area?+

Usually yes, but the panel choice and where they sit matters. We specify all-black, low-profile modules that sit close to the tile line and, wherever the generation allows, we site them on the rear slope so they're not visible from the street. That combination is what makes most Winchester roofs workable. On a listed building the conversation is different and needs to happen before anything is designed, so tell us at the survey stage and we'll be straight with you about what is and isn't likely to be acceptable.

Who is my grid operator in Winchester, and do you handle the application?+

Winchester is in SSEN's area, which covers Hampshire, the Isle of Wight, Dorset and west Surrey. We file the paperwork for you. A system up to 3.68kW per phase with no battery goes through G98 as connect-and-notify. Anything larger, or anything with battery storage or export, needs a G99 application approved before we install — so it's worth starting early rather than at the last minute.

How much electricity will a 4kW system actually generate in Winchester?+

The South Coast gets roughly 1,050-1,150 kWh per kWp per year, so a 4kW south-facing array here should produce around 3,900-4,600 kWh annually. If your roof faces east or west rather than south, expect roughly 15-20% less. We'd rather give you that range up front than a single confident-sounding number that your roof may never hit.

What will I get paid for the electricity I export?+

Octopus Outgoing Fixed currently pays 12p per kWh — that was cut from 15p on 1 March 2026, so ignore any older figures you find online. Open-market flat SEG rates sit roughly between 10.5p and 16.5p per kWh depending on supplier. The very high time-of-use rates you may have read about are closed to new sign-ups, and the installer-bundled rates around 24-25p come with conditions attached rather than being open-market deals.

How long does the whole process take from survey to switch-on?+

The pace is usually set by the G99 approval from SSEN rather than by the install itself, which is why we get that application in early. Winchester is 24 miles from our Portsmouth base, so the site survey, the install crew and any aftercare visit are all a short drive for us — not a job we have to batch up with others in the area. We'll give you honest dates at survey rather than a date we hope to hit.

Get a free solar quote for your Winchester home

Get a free, no-obligation quote tailored to your home — expert local advice, clear pricing and finance options across the South Coast.

Get A Free Quote Call