C21e tiles and slates

Marrying traditional techniques with a modern design

C21e brochure

Subtle, elegant and brilliantly effective

C21e has taken the world by storm, becoming an industry standard and powering thousands of homes for free.

Looks great, and simple to specify and install

No wonder they’re a popular choice for installers and homeowners alike.

Award winning

Designed and manufactured by Solarcentury, C21e has won dozens of awards including the Queen’s Award for Enterprise for Excellence in Innovation, the Ecobuild Best Building Product, and the Sunday Times R&D Award.


There’s no doubt that C21e looks beautiful when compared with conventional solar. It’s a premium product that fully integrates into the roof, without any visible flashings or weather-proofing.

C21e has been installed in conservation areas, on Grade I buildings and in areas of national beauty. And it’s proved ideal for hundreds of new-build and self-build projects where the resulting aesthetics are key.

  1. Save up to 20% in installation and building costs, when compared with installing traditional on-roof solar.
  2. C21e replaces the conventional roof covering, so you need fewer tiles and slates.
  3. Because C21e is installed at the same time as your roof is being built, there’s no need to coordinate multiple trades and scaffolding.
  4. C21e is quick and simple to install ‘straight from the box’ using traditional roofing methods. A 4kWp system takes as little as one day to install, so it won’t slow down the construction process.

Designed to ensure a simple and quick installation by any professional roofer or solar installer, following standard roofing practice.


The C21e family

C21e solar slate C21e solar slate

C21e solar slate

Compatible with natural and artificial roof slates, this product is particularly popular on listed buildings and in areas of aesthetic sensitivity.

Installation guide Datasheet Compatibility table

C21e solar plain tile C21e solar plain tile

C21e solar plain tile

Compatible with traditional small-format plain tiles, single and double camber, from a wide variety of manufacturers.

Installation guide Datasheet Compatibility table

C21e solar roof tile C21e solar roof tile

C21e solar roof tile

Compatible with interlocking roof tiles, this product complements a traditional pitched roof perfectly.

Installation guide Datasheet Compatibility table

Find an approved installer

Enter your postcode to find some local installers - all MCS accredited and recommended by us, so you know you're in good hands.

Residential solar calculator

Use our handy tool to get a quick estimate of system cost, savings and return on investment based on your actual house and location.

This site uses some unobtrusive cookies to store information on your computer. Using cookies will improve your user experience. By using Solarcentury, you agree to the use of cookies. For more information please read our Privacy and Cookies policy.