Solar Tiles & Solar Roof Tiles: UK Guide
Solar tiles replace conventional roof tiles with photovoltaic tiles that generate electricity. They look like a normal roof but produce solar power. Here's what they cost, how they compare to standard solar panels, and whether they're worth it for your home.
Quick Answer
Solar tiles (also called solar slates or solar shingles) are roof tiles with built-in solar cells. They replace your existing tiles rather than sitting on top of them. Costs range from £10,000–£25,000 for a typical installation — roughly double the cost of standard solar panels for the same output. They make genuine sense if you need a new roof anyway, live in a conservation area, or are building a new home. For most existing homes with a roof in good condition, conventional solar panels remain better value in 2026.
What are solar tiles?
Solar tiles are photovoltaic cells integrated directly into roof tiles or slates. Unlike conventional solar panels that mount on top of your existing roof, solar tiles replace a section of your roof covering entirely. Each tile contains a small solar cell, and when wired together they form a solar array that generates electricity just like traditional panels.
You may see them referred to by several names:
- Solar slates — designed to mimic natural slate roofing
- Solar shingles — the American term, popularised by Tesla
- BIPV (building-integrated photovoltaics) — the technical industry term for any solar product that replaces a building material
- Solar roof tiles — the most common UK term
The key advantage is aesthetics. From street level, a solar tile roof looks like a normal tiled or slated roof. There are no visible panels, frames, or mounting brackets. This makes them particularly appealing for listed buildings, conservation areas, and homeowners who want solar without changing the appearance of their property.
How do solar tiles work?
Each solar tile contains a monocrystalline or thin-film solar cell laminated beneath toughened glass. The tiles interlock like standard roof tiles and are wired together in series. A cable runs from the roof into a standard solar inverter, which converts the DC electricity into AC for your home. From the inverter onwards, the system is identical to a conventional solar panel installation.
Solar tiles vs solar panels
This is the comparison most people want. Solar tiles and conventional solar panels both generate electricity from sunlight, but they differ significantly in cost, efficiency, installation, and availability.
| Feature | Solar Tiles | Solar Panels |
|---|---|---|
| Cost (4kW equivalent) | £10,000–£25,000 | £6,000–£10,000 |
| Efficiency | 10–18% | 20–24% |
| Aesthetics | Blend in seamlessly with roof | Visible panels on top of roof |
| Installation | Replace entire roof section | Mount on existing roof |
| Best for | New builds, re-roofing, listed buildings, conservation areas | Existing roofs in good condition |
| UK availability | Limited — fewer certified installers | Widely available nationwide |
| Maintenance | Individual tile replacement possible | Standard panel cleaning and checks |
| Lifespan | 25–30 years | 25–30 years |
The efficiency gap is significant. Standard solar panels achieve 20–24% efficiency with modern N-type cells, while solar tiles typically manage 10–18%. This means you need more roof coverage with tiles to match the output of a smaller panel array.
Solar tile brands available in the UK
The solar tile market in the UK is still relatively niche compared to conventional panels. Here are the main brands currently available or expected to become available:
Marley SolarTile
UK Market Leader
The most established solar tile option in the UK. Marley is a well-known British roofing manufacturer, and their SolarTile integrates directly with Marley roof systems. Each tile produces around 16W and they can be combined with standard Marley tiles on the same roof. The most practical choice for UK installations.
Solarcentury C21e
Established UK Brand
Solarcentury (now part of Statkraft) developed one of the earliest solar roof tile products in the UK. The C21e slate integrates with conventional roof slates and has been used on both residential and commercial projects. Strong track record in the UK market.
Tesla Solar Roof
Premium / Limited Availability
Tesla's Solar Roof attracted significant attention but has very limited availability in the UK. High cost, distinctive aesthetic, and Tesla's brand backing. Installation requires Tesla-certified contractors, which are scarce in the UK. Worth monitoring but not a practical option for most UK homeowners at present.
Nulok Solar Slate
Natural Slate Look
Nulok's system integrates solar cells into a patented interlocking slate system. Designed to replicate the appearance of natural slate roofing, making it particularly suitable for period properties and conservation areas where the traditional look is important.
Bristile Solar
Newer Entrant
A newer entrant to the UK market, Bristile offers an integrated solar roofing system. Still building its UK installer network, so availability may be limited depending on your location.
How much do solar tiles cost?
Solar tiles cost significantly more than conventional solar panels for the same electricity output. However, the true comparison is more nuanced than the headline figures suggest.
Solar Tiles (4kW equivalent)
£15,000–£25,000
Replaces roof tiles + generates electricity. Price includes removal of existing tiles, solar tile installation, wiring, and inverter.
Solar Panels (4kW equivalent)
£7,000–£9,000
Mounts on top of existing roof. Price includes panels, mounting system, wiring, and inverter. Your roof remains unchanged.
The re-roofing offset
If you need a new roof anyway, the cost comparison changes considerably. A standard re-roof with conventional tiles costs £5,000–£8,000 for an average UK home. Since solar tiles replace your roof covering, you should subtract this cost from the solar tile price:
| Solar tiles (4kW) | £15,000–£25,000 |
| Minus: cost of conventional re-roof | −£5,000–£8,000 |
| Net additional cost for solar | £7,000–£17,000 |
When you factor in the re-roof you would have paid for anyway, the premium over conventional panels narrows significantly. This is why solar tiles make the most financial sense when combined with a planned re-roof.
Solar tiles are eligible for the same 0% VAT as conventional solar panels in the UK. They can also earn income through the Smart Export Guarantee for any surplus electricity you export to the grid.
When do solar tiles make sense?
Solar tiles are genuinely worth considering in the following situations:
You need a new roof anyway
If your roof needs replacing, solar tiles let you combine the re-roof with solar generation. The net additional cost is much lower than fitting solar tiles on top of a brand new conventional roof. This is the strongest financial case for solar tiles.
Listed building or conservation area
If your local planning authority has refused permission for conventional solar panels (common in conservation areas and for listed buildings), solar tiles may be approved because they don't alter the roofline or visual appearance. Check with your local planning department first.
New build
Architects can design a new build around solar tiles from the start, optimising roof angle and orientation. The cost premium is lower when solar tiles are part of the original build rather than a retrofit. Future Building Regulations may make this increasingly common.
Strong aesthetic preference
If the appearance of conventional panels is a genuine deal-breaker and you would otherwise not install solar at all, solar tiles let you go green without changing your roof's appearance. The premium is the price of aesthetics.
When to skip solar tiles
For most UK homeowners, conventional solar panels remain the better choice. Skip solar tiles if:
- Your existing roof is in good condition — you would be paying to remove perfectly good roof tiles to install solar tiles, doubling the cost for no structural benefit
- Budget is a priority — conventional panels deliver the same or better output at roughly half the cost
- Maximum output matters — solar panels are 20–24% efficient vs 10–18% for tiles, so panels generate more electricity per square metre
- You want wide installer choice — thousands of MCS-certified installers fit panels; far fewer offer solar tiles
Planning permission for solar tiles
Solar tiles generally face fewer planning issues than conventional solar panels. Under permitted development rights, solar installations on residential roofs in England typically don't require planning permission, provided they don't protrude more than 200mm beyond the roof plane.
Since solar tiles sit flush with the roof surface (they are the roof), they almost always comply with this rule. This gives them a distinct advantage in situations where conventional panels might be refused:
Conservation areas
Panels visible from the highway are often refused in conservation areas. Solar tiles are far more likely to be approved as they maintain the roof's original appearance.
Listed buildings
Listed building consent is required for any alteration. Solar tiles that closely match the existing roof material may be approved where panels would not, though this varies by authority.
AONBs & National Parks
Areas of Outstanding Natural Beauty and National Parks have stricter rules. Solar tiles offer the best chance of approval in these protected landscapes.
Always check with your local planning authority before proceeding. Planning rules vary by council and by the specific characteristics of your property.
Frequently Asked Questions About Solar Tiles
Are solar tiles worth it in the UK?
For most homeowners with an existing roof in good condition, conventional solar panels offer better value. Solar tiles make genuine financial sense when you need a new roof anyway, as the combined re-roof + solar cost narrows the price gap significantly. They're also worth it if planning rules prevent conventional panels (conservation areas, listed buildings).
How much do solar tiles cost compared to solar panels?
Solar tiles cost £10,000–£25,000 for a 4kW equivalent system, compared to £6,000–£10,000 for conventional panels. However, if you're re-roofing anyway, subtract £5,000–£8,000 (the cost of conventional tiles), which narrows the gap. The net premium over panels is typically £7,000–£17,000.
Can you get Tesla Solar Roof in the UK?
Tesla Solar Roof has very limited availability in the UK. Tesla-certified installers are scarce, and the product is not widely marketed here. While Tesla has expanded in the US, UK homeowners are better served by Marley SolarTile or Solarcentury C21e, which have established UK installer networks.
Do solar tiles work as well as solar panels?
Solar tiles produce electricity the same way as panels, but they're currently less efficient. Solar tiles achieve 10–18% efficiency compared to 20–24% for modern solar panels. This means you need more roof area covered with tiles to match the output of a smaller panel installation.
Do solar tiles need planning permission?
Solar tiles rarely need planning permission because they sit flush with the roof, complying with the 200mm protrusion rule under permitted development. They're often approved in conservation areas and for listed buildings where conventional panels are refused. Always check with your local planning authority.
How long do solar tiles last?
Solar tiles have a similar lifespan to conventional solar panels — typically 25–30 years. They also serve as your roof covering, so they need to be weatherproof for at least as long. Most manufacturers offer 25-year product warranties.
Can solar tiles be installed on any roof?
Solar tiles work best on roofs that need replacing or on new builds. They require the existing roof covering to be removed and replaced with solar tiles, which adds significant cost if your current roof is in good condition. The roof structure must also be assessed to ensure it can support the tiles.
Are solar tiles available on the Smart Export Guarantee?
Yes. Solar tiles are eligible for the Smart Export Guarantee (SEG) just like conventional panels, provided the installation is MCS-certified. You can earn 3–15p per kWh for surplus electricity exported to the grid. They also qualify for 0% VAT.
Related Guides
Sources
- Energy Saving Trust — Solar Panels — energysavingtrust.org.uk
- Marley — SolarTile Product Information — marley.co.uk
- MCS — Microgeneration Certification Scheme — mcscertified.com
- UK Government — Permitted Development Rights for Solar — gov.uk
- Ofgem — Smart Export Guarantee — ofgem.gov.uk
Last updated: March 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He fact-checks all content against official MCS and Ofgem data and maintains relationships with MCS-certified installers across the UK.
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