Plug-In Solar on a Conservatory Roof: UK Guide
Can you mount plug-in solar panels on a conservatory roof? Weight limits, angle considerations, and installation tips.
Can You Mount Solar on a Conservatory?
Yes — with caveats. Many conservatory roofs can support plug-in solar panels, but you need to check weight limits and consider the roof material.
Weight Considerations
| Conservatory roof type | Weight limit | Can support panels? |
|---|---|---|
| Polycarbonate | 10-15 kg/m² | Usually no — too fragile |
| Glass | 15-25 kg/m² | Maybe — depends on framework |
| Solid (tiled/composite) | 40+ kg/m² | Yes — ideal |
A typical 400W panel weighs 20-22kg and measures 1.7m × 1m. That's approximately 12-13 kg/m² — within range for glass conservatories but too heavy for most polycarbonate roofs.
Best Approach by Roof Type
Solid/Tiled Conservatory Roof
Treat this like a flat roof installation. Use ballast mounting or adjustable tilt brackets to achieve the optimal angle.
Glass Conservatory Roof
Don't mount directly on glass. Instead, use a frame that spans across the conservatory rafters (not the glass panels) and supports the solar panels above the glass. This adds cost but avoids structural risk.
Polycarbonate Roof
Mount panels on an independent frame beside the conservatory, or consider replacing the polycarbonate with a solid roof — many homeowners do this anyway for thermal comfort.
The Angle Advantage
Most conservatory roofs are pitched at 20-30° — close to the optimal 30-35° for UK solar. A south-facing conservatory roof is one of the best locations for plug-in solar.
Use our panel angle guide to check optimal angles for your latitude.
- 800W dual-panel plug-in solar kit
- 600Wh battery with smart scheduling
- App monitoring with real-time generation data
- Balcony, garden & flat-roof mounts available
Will the panels shade my conservatory?
Yes — which is actually a benefit in summer. The panels reduce solar heat gain, making the conservatory more comfortable. In winter, when the sun is lower, light still enters from the sides.
Do I need planning permission?
For most conservatories, no. Plug-in solar panels are portable and don't modify the building structure. If your home is listed, check with your local authority.
What about rain drainage?
Panels can alter drainage patterns on conservatory roofs. Ensure water can still flow freely to gutters and doesn't pool around the mounting frame.
Related reading
See how much plug-in solar could save you — with real data for your postcode.