Thinking about going solar but wondering if your conservatory roof is up to the task? If you’ve searched can you install solar panels on a conservatory roof, you’re not alone.
With the rise in energy prices and the growing push for sustainable living in the UK, homeowners and landlords are exploring every possible surface to harness solar energy. But is a conservatory a viable candidate?
In this guide, we explore everything you need to know about installing solar panels on a conservatory roof in the UK, from structural concerns and performance expectations to government grants and better alternatives.
Can Solar Panels Be Safely Installed on a Conservatory Roof?
In most cases, standard conservatory roofs are not suitable for direct solar panel installation.
Conservatories typically feature lightweight polycarbonate or glass roofs, which are not designed to carry the additional weight of solar panels which can weigh between 18–25 kg per panel.
Furthermore, structural integrity is a primary concern. A typical conservatory roof lacks the reinforcement found in tiled or slate roofs. Attempting to mount panels without modifications could cause long-term damage or pose safety risks.
However, there are alternatives:
- Reinforcing or replacing the roof with solid tiles.
- Using a solar canopy adjacent to the conservatory.
- Mounting panels on a garage or main roof for optimal performance and safety.
If you’re unsure about the best installation method for your home, request a free solar panel quote from Future Heat.
We are a trusted solar specialists serving Tyne and Wear, Newcastle, and the wider North East of England. Our team will assess your property and recommend the safest, most cost-effective solution.
What Are the Best Alternatives to Installing on a Conservatory Roof?
Instead of mounting directly on a fragile roof, consider these homeowner-friendly alternatives that won’t compromise your conservatory structure:
1. Install Panels on the Main Roof
The primary roof of your home will often provide better:
- Sunlight exposure
- Structural integrity
- Roof angle optimisation
This is the most common and effective solution for UK homes.
2. Upgrade to a Solid Roof Conservatory
By converting your conservatory into a solid tiled roof extension, it may then support solar panel systems safely, though this comes with additional building regulations and costs.
Learn more about conservatory roof regulations on the Planning Portal.
3. Use Ground-Mounted or Wall-Mounted Solar Panels
If roof space is limited, ground-mounted solar systems or south-facing wall mounts can be a practical and efficient solution.
Expert Tip: Book a consultation with Future Heat to explore the most efficient location for your solar panels, tailored to your property layout and budget. Get a quote.
4. Consider Solar Panel Carports or Pergolas
Solar carports are growing in popularity for those short on suitable roof space. They provide dual benefits, shelter and power generation.
Are there solar panels specifically designed for glass roofs?
Yes, there are building-integrated photovoltaic (BIPV) systems that can be integrated into glass structures. However, these are costly and typically used in commercial or bespoke architectural projects.
Can I Use Flexible Solar Panels on a Conservatory Roof?
Yes, but they still require a strong substrate. Flexible panels are lighter but need a backing surface that’s stable, waterproof, and long-lasting, which standard conservatory roofs don’t provide.
Can I Add Solar Panels When Building a New Conservatory?
Yes, and it’s the ideal time to do so. Ask your builder to reinforce the roof structure or design it specifically to accommodate solar panels.
Do You Need Planning Permission to Install Solar Panels on a Conservatory?
Generally, solar panels fall under Permitted Development Rights (PDRs), meaning you don’t usually need planning permission. However, installing them on a conservatory may not fall under this category due to structural and aesthetic considerations.
Key Planning Considerations:
- If the conservatory faces the road or is in a conservation area, you may need approval.
- Structural changes (like replacing the roof) might trigger a planning review.
How Much Energy Can Solar Panels on a Conservatory Roof Generate?
While exact output depends on orientation and panel efficiency, a typical 4kW system can generate around 3,400–4,200 kWh/year in the UK.
However, energy output on a conservatory roof might be:
- 15–30% lower due to smaller surface area and shading
- Reduced further if the angle or pitch is shallow
What Impact Does a Conservatory Roof Have on Solar Panel Efficiency?
Even if installation were technically possible, solar panel efficiency would be compromised. Here’s why:
- Angle of inclination: Conservatory roofs are often too flat or poorly angled.
- Obstructions: Shadows from nearby trees, buildings, or the house itself.
- Ventilation: Glass roofs can cause overheating, which reduces panel efficiency.
- Accessibility: Maintenance becomes more difficult and risky.
According to the Energy Saving Trust, the average UK home can save between £280–£480 per year with a well-installed solar PV system, but that’s under ideal conditions. A conservatory roof is far from ideal.
What Should You Consider Before Installing Solar Panels on a Conservatory?
Structural Integrity
A solar survey should be conducted to check if the roof is capable of bearing weight. In most cases, reinforcement or full replacement is required.
Energy Yield
Solar panels perform best when facing south with minimal shading. Consider if your conservatory roof orientation supports efficient energy generation.
Installation Costs
Expect to pay slightly more if structural reinforcements are needed. Average solar panel costs (as of 2024) are around £5,500–£7,500 for a 4kW system [source:
Aesthetic Considerations
You might prefer to preserve the aesthetic of your conservatory. Alternative installations may offer better visual harmony.
Frequently Asked Questions (FAQs)
Yes, you can use portable or freestanding solar panels, although they’re less efficient than roof-mounted systems. They can be a temporary solution if your roof isn’t suitable.
Potentially, yes. Any structural changes or additions should be declared to your insurer to avoid voiding your policy.
If you’re generating excess energy, a solar battery can store unused electricity for use at night or during low sunlight. This boosts your solar ROI.
Yes. If your conservatory roof or nearby structures create shading, this can impact your solar generation. It’s best to place panels on the sunniest, south-facing roof.
Absolutely. Commercial buildings often have more installation options and larger energy needs, making solar highly cost-effective. Flat rubber roofs are especially ideal for solar ballasts.
Our Verdict
While the idea of using every surface including your conservatory for solar energy is appealing, installing solar panels directly on a traditional conservatory roof isn’t recommended in the UK.
Structural limitations, inefficiency, and safety risks outweigh the potential benefits. But don’t worry, you still have options. From mounting on your main roof to converting your conservatory roof or installing ground systems, solar can still work for you.
Myles Robinson is a seasoned expert in the boiler and home improvement industry, with over a decade of experience. He is deeply committed to environmental sustainability, actively promoting energy-efficient heating solutions to help households reduce their carbon footprint. By combining industry expertise with a dedication to environmental responsibility, Myles continues to lead efforts in transforming home heating practices towards a more sustainable future.
