Key Benefits
Hampshire Solar Market in 2026
52,009 Hampshire homes already have MCS-certified solar panels — 6.7% of all households, well above the 5.6% UK average. Hampshire receives 18% more solar irradiance than the national average, making it one of the best regions in Britain for solar power. A typical 4.5kWp system costs £7,784 installed (MCS median), with £26 million in council-backed funding recently awarded across Hampshire.
Everything You Need to Know
1 Solar Panel Costs in Hampshire (2026)
The MCS median cost for a 4.5kWp solar panel system in Hampshire is £7,784 installed, though prices range from £5,000 for a basic 3kW system to £12,000+ for premium 6kW+ installations. Costs have dropped 19% since 2024 and are now close to pre-2022 levels at around £1,800 per kW. All domestic solar installations carry 0% VAT, making solar more accessible than ever. Hampshire homeowners have saved an average of £2,000 by getting multiple quotes, which is why we always recommend comparing at least three installers.
2 Solar Generation in Hampshire vs the UK
Hampshire receives 1,100-1,300 kWh/m²/year of solar irradiance — 18% above the UK national average. Each kilowatt of panels produces roughly 1,010 kWh per year on a south-facing roof, compared to just 850 kWh in northern England. This means a 4kW system in Hampshire generates 3,800-4,200 kWh annually, enough to power an average 3-bedroom home. Coastal locations like Portsmouth, Gosport, and Hayling Island can achieve even higher yields due to reduced cloud cover and reflected light from the sea.
3 Choosing the Right Installer in Hampshire
Hampshire has over 40 solar installers, ranging from national companies like Sunsave to local specialists. Key factors to consider: MCS certification (mandatory for SEG payments and guarantees), warranty length (minimum 10 years for workmanship), brand selection, and local presence for aftercare. Some Hampshire installers offer 10+ brands — we deliberately stock only SigEnergy, Fox ESS, and GoodWe because deep expertise in four brands produces better installations than surface knowledge of many. Every system we install is designed by engineers who know these products inside-out.
4 Government Incentives and Grants
The Warm Homes: Local Grant scheme awarded £26 million to Hampshire local authorities in 2025, with up to £30,000 available per qualifying home — £15,000 for energy performance upgrades like solar panels and £15,000 for low-carbon heating. The Smart Export Guarantee (SEG) pays 3.5-15p/kWh for surplus electricity exported to the grid, worth £80-170 per year for a typical system. Combined with 0% VAT and bill savings of £550-700 annually, most Hampshire systems pay for themselves within 6-8 years.
Solar Panels Costs
Typical prices including installation. 0% VAT on all domestic systems.
Prices are indicative and vary by property. Get a precise quote with a free site survey.
How It Works
Our simple 5-step process from survey to switch-on
Free Survey
We visit your property to assess your roof, shading, and energy usage. We use drone and satellite mapping to design the optimal panel layout.
Custom Design
Our engineers design a bespoke system using premium components from SigEnergy, Fox ESS, or GoodWe, matched to your specific energy profile.
Installation
Our MCS-certified installers complete most residential installations in just one day, with minimal disruption to your daily routine.
Commissioning
We test and commission your system, register it with your energy supplier for SEG payments, and hand over full documentation.
Aftercare
We provide ongoing monitoring support and maintenance options to ensure your system performs at its best for decades.
Why Choose Solent Solar for Solar Panels
Hampshire has over 40 solar installers. Here's why our customers choose us.
Genuinely Local
Based in Whiteley, Fareham — not a national company pretending to be local. We serve a 2-hour radius and know Hampshire's roofs, planning rules, and weather.
Four Expert-Curated Brands
We install SigEnergy, Fox ESS, and GoodWe because they cover every price point with proven quality. Unlike companies selling 10+ brands, we know our products inside-out.
MCS Certified
Full MCS certification means your installation qualifies for Smart Export Guarantee payments and meets the highest industry standards.
We Service What We Install
Many Hampshire solar companies install and disappear. We offer aftercare from £99/yr and will be here in 10 years when you need us.
Recommended Brands for Solar Panels
Three price points to suit every budget and requirement
Frequently Asked Questions
A typical 3-bedroom home in Hampshire needs 10-12 panels (4-5kW system). We design every system based on your specific energy usage, roof size, and orientation.
Yes. Solar panels generate electricity from daylight, not just direct sunshine. Even on overcast days, panels produce 10-25% of their peak output. Hampshire averages 1,750+ hours of sunshine per year.
Most domestic solar installations fall under permitted development and do not require planning permission. Exceptions include listed buildings, conservation areas, and flats. We handle all planning requirements for you.
Modern solar panels are designed to last 25-30+ years. Performance warranties guarantee at least 80% output after 25 years. Inverters typically last 10-15 years.
Solar Panels Available Across Hampshire
Based in Whiteley — 54 locations covered across Hampshire and the South Coast
Our Other Services
Complete home energy solutions from a single trusted installer
Related Resources
Helpful guides and comparisons to inform your decision
Ready for Solar Panels?
Get a free, no-obligation survey and quote. We'll design the perfect system for your home.
Solar System Sizes in Hampshire: Panels, Roof Space, Yield and Savings
Price ranges only tell you half the story. What matters when Tom surveys a roof in Hampshire is how many panels physically fit, what they will generate on your orientation, and what that generation is actually worth to your household. The table below sets out the practical numbers for the system sizes we install most often across the Solent area. Yields assume a reasonably well-oriented roof on the south coast, where output typically runs at 950–1,050 kWh per kWp per year — better than most of the UK, but we will model your exact roof before quoting rather than promising a headline figure.
| System size | Panels (430–450W) | Roof area needed | Installed cost (0% VAT) | Est. annual yield | Typical annual saving* |
|---|---|---|---|---|---|
| 3 kW | 7 panels | ~14 m² | £5,000–£6,500 | 2,850–3,150 kWh | £350–£550 |
| 4 kW | 9 panels | ~18 m² | £6,000–£8,000 | 3,800–4,200 kWh | £450–£700 |
| 5 kW | 11–12 panels | ~24 m² | £7,500–£9,500 | 4,750–5,250 kWh | £550–£850 |
| 6 kW | 13–14 panels | ~28 m² | £9,000–£12,000 | 5,700–6,300 kWh | £650–£1,000 |
*Savings combine electricity you use directly plus export income, and depend heavily on when you are home to use the power. Adding battery storage (typically £2,500–£5,000 extra depending on capacity) pushes savings towards the top of each range and beyond, because stored daytime generation replaces expensive evening imports. Export is paid through the Smart Export Guarantee — as of mid-2026 most SEG tariffs pay roughly 3–15p per kWh, and rates change often, so check our current SEG rates guide and confirm with your supplier before building it into your sums.
Two things to note on cost. First, every price above includes the full supply-and-install package at 0% VAT — the domestic zero rate on solar and battery installations runs until 31 March 2027, after which it is due to rise to 5%, so there is a genuine (if modest) saving in acting before then. Our 0% VAT guide explains exactly what qualifies. Second, if a quote you have received sits far below these ranges, ask what has been left out — scaffolding, bird-proofing, DNO paperwork and in-roof flashing kits are the usual culprits. For a deeper local breakdown, see our Hampshire solar cost guide.
How Tom Installs: Six Steps From First Call to Switch-On
One person. Every install. There is no sales team, no subcontracted survey crew, and no handover between departments where details get lost. Here is exactly what happens when you book Solent Solar, anywhere within our 30-mile radius of Whiteley.
- 1. Survey — Tom, in person. Roof measurements, orientation and pitch, shading from trees and chimneys, loft structure, consumer unit condition, and where the inverter and any battery will live. No drone-only desktop surveys for the final design — the person quoting is the person who will be on your roof.
- 2. Design and fixed quote. A panel layout modelled on your actual roof and usage, with an itemised fixed price. You will see the panel model, inverter, mounting system and any extras (bird-proofing, battery, EV charger) line by line. No pressure tactics, no "sign today" discounts.
- 3. DNO paperwork — handled for you. Our network operator here is SSEN. Systems up to 3.68 kW per phase are notified under G98 after commissioning; anything larger needs G99 approval from SSEN before installation, which can take several weeks — so Tom submits it as soon as you accept the quote, not after the scaffold goes up. This is a step some installers fudge; it matters for your export payments and your insurance.
- 4. Scaffold and install. Scaffolding goes up a day or two ahead. A typical domestic install takes one to two days on site: mounting rails and panels on the roof, then the inverter, battery and electrical connections inside.
- 5. Commissioning and handover. System tested and switched on, monitoring app set up on your phone, and your paperwork pack issued — MCS certificate, electrical certification, G98/G99 confirmation and warranty registrations. You need the MCS certificate to claim SEG export payments; our MCS guide explains why it is non-negotiable. Our work is backed by HIES consumer protection.
- 6. Aftercare and monitoring. Because Tom installed it, Tom can see it. If generation drops or the app flags a fault, you deal with the person who built the system — not a call centre. Ongoing servicing, panel cleaning and health checks are available through our maintenance service.
Most installations run from first enquiry to switch-on in a few weeks; larger G99 systems can take longer because SSEN approval must come first. We will give you an honest timeline at quote stage rather than an optimistic one. Book your survey here.
The Panels and Inverters We Fit — and Why
We deliberately keep a short kit list. Fitting three inverter/battery ecosystems well beats fitting ten badly — it means Tom knows every fault code, every firmware quirk and every warranty process on the equipment in your loft.
SigEnergy — the premium ecosystem
The SigenStor stacks hybrid inverter, battery modules and energy management into one modular tower, so you can start with a smaller battery and add capacity later without rewiring. It also supports an integrated DC EV charger, which is the most efficient way to charge a car from solar. The system carries a 10-year manufacturer warranty on the energy controller and battery modules. If you want the best-integrated whole-home setup available in 2026, this is what we recommend — see how it stacks up in our best solar battery comparison.
Fox ESS — the value hybrid
Fox ESS hybrid inverters carry a 5-year manufacturer warranty as standard, which extends free of charge to 12 years in total once the unit is registered online and connected to Fox's cloud monitoring — registration we complete as part of every install, so you get the full cover without lifting a finger. Its batteries carry 10–12 year warranties depending on model (10 years on the EP series, 12 on the ECS range) — strong cover at a noticeably lower price than the premium brands. For households that want solid solar-plus-storage without paying for features they will not use, it is the sensible pick.
GoodWe — the proven hybrid inverter
GoodWe is one of the most widely installed hybrid inverter brands in the world. The standard warranty is 5 years, extended free to 10 years when the hybrid inverter is registered and paired with a GoodWe Lynx battery — an installer-programme extension GoodWe has confirmed is running through 2026, and one we register for you at commissioning. We fit it where the design calls for its particular string configurations or retrofit flexibility. Our hybrid inverter comparison covers when we would choose each.
Panels: brand-agnostic, efficiency-led
On panels we are deliberately not tied to one badge. Panel manufacturing is now mature enough that the sensible approach is current-generation high-efficiency modules (typically 430–450W N-type) from tier-one manufacturers, chosen on availability, price and the 25–30 year performance warranties they carry — rather than paying a premium for a logo.
An honest note on GivEnergy
We previously fitted GivEnergy. GivEnergy Ltd entered administration on 9 April 2026, which means no new manufacturer warranties are being issued, so we no longer specify it on new installations — a warranty we cannot stand behind is not one we will sell you. Existing owners: the monitoring app continues to run under a separate software company, and we can still service GivEnergy systems. Full detail in our GivEnergy administration guide.
Solar Installation FAQs: Cost, Timescales and Warranties
How much does solar panel installation cost in Hampshire in 2026?
Most domestic systems we install come in between £5,000 and £12,000 fully installed, depending on size — a typical 4kW system sits around £6,000–£8,000 with no VAT to pay until 31 March 2027. Adding a battery typically costs £2,500–£5,000 more depending on capacity. Every quote is fixed and itemised, so the price you accept is the price you pay.
How long does a solar installation take?
One to two days on site for a typical domestic system, with scaffolding up a day or two beforehand. From first enquiry to switch-on, allow a few weeks; systems above 3.68 kW per phase need prior G99 approval from SSEN, which can add several weeks — we submit that paperwork the day you accept the quote to keep the wait as short as possible.
Do I need permission from the electricity network?
Yes — every grid-connected system must be registered with the local network operator (SSEN across our area). Smaller systems are notified under G98 after commissioning; larger ones need G99 approval before installation. Tom handles all of it as part of the job, and you receive the confirmation in your handover pack — you will need it for SEG export payments.
Is bird-proofing worth adding?
Around the Solent, honestly, usually yes — gulls and pigeons nesting under panels cause droppings, blocked drainage and pecked cabling. Fitting mesh during installation costs far less than retrofitting it later, which typically runs £300–£800 for an average home once scaffolding and cleaning are factored in. We will tell you at survey whether your roof genuinely needs it rather than adding it to every quote by default.
What warranties do I get?
Three layers: panel manufacturer warranties (typically 25–30 years on performance), inverter and battery warranties (10 years on the SigEnergy kit we fit, and 10–12 years on registered Fox ESS and GoodWe systems — we complete the manufacturer registrations at commissioning, so you are never left on the shorter unregistered terms), and our own workmanship guarantee backed by HIES consumer protection. Because we are MCS-certified and Tom personally installs every system, warranty claims do not disappear into a subcontractor chain — see what customers say on our reviews page.
Your questions, answered
How much does solar panel installation cost in Hampshire in 2026?
How long does a solar installation take?
Do I need permission from the electricity network to install solar panels?
Is bird-proofing solar panels worth it?
What warranties come with a solar panel installation?
Looking for solar panel installers near you?
If you're searching for a solar installer near you anywhere along the M27 corridor — Southampton, Fareham, Portsmouth, Gosport, Eastleigh, Winchester or the surrounding towns — Solent Solar is genuinely local: one MCS-certified installer based in Whiteley, covering a 30-mile radius of the Solent. No subcontractors, no lead-selling — the person who quotes is the person on your roof.
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