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

Every member of the Castillium team is an industry professional with, collectively, over a century of experience in renewable energy and related specialisms. The Board of Directors includes leading figures in the UK energy sector, and we have in-house land agency, civil engineering, mechanical engineering and project management specialists.Solar Cells

Our team has a track record of success in delivering energy projects. We have negotiated the land deals for some of the largest renewable energy developments in the UK, team members have secured over £425M of energy technology finance to develop out energy projects, and are experienced at securing planning and grid connection agreements.

We work with landowners to find the optimum sites to develop a range of renewable energy technologies. Our present focus is on field-based solar photovoltaic (PV) and medium scale wind turbines, but as a team we are also experienced with developing hydroelectric power, anaerobic digestion and energy storage plants.

We have developed a rigorous selection and due diligence process which ensures that we identify the best sites for development and minimise time wasted on those that are not suitable. From our detailed databases we accurately select the best solar and wind sites across the United Kingdom. This enables us to offer landowners long-term leases with rental yields that are higher than (and additional to) yields from many forms of traditional agriculture.

We have secured development and construction finance for our first phase of large scale solar projects. With offices throughout the UK, Castillium is well placed to develop projects across the country and the management team have the expertise to identify opportunities. 

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.