Welcome to Castillium

Castillium is one of the UK’s leading developers of solar PV farms.

We design, install and operate ground mounted solar arrays for landowners and businesses who would like to invest in renewable energy. We also reduce the price businesses pay for heat and power and improve their carbon foot print through the implementation of combined heat and power (CHP) systems.  We are a professional team of experts with a passion for what we do.

Castillium is committed to delivering secure and sustainable financial returns from low carbon energy sources, with minimal impact on the surrounding countryside and businesses, and with a focus on generating value for our customers and partners.

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Castillium C250

If you have 1.5 acres of land adjacent to an electricity supply and would like to receive cheap electricity and £5,000 PA for 20 years then C250 is the answer for you.

Solar Parks

Do you have between 10 and 30 acres of land? Find out more about how you can earn a secured, long-term income without impacting on your existing business.

Castillium CHP

We deliver real cost savings to businesses through on site generation of both electricity and heat utilising highly efficient combined heat and power (CHP) systems.

Positive Energy

Solar developments have a multitude of benefits for the environment. We strive to improve natural habitats and solar parks offer a great opportunity to do so.

“We’re passionate about what we do and work with people who share our passion for improving the UK energy generation market, reducing carbon emissions and improving energy security of supply.”