26kW Solar PV Installation for Ysgol Glanwydden


Our team recently had the opportunity to work with Ysgol Glanwydden, a bilingual primary school located in Penrhyn Bay, Conwy. The school is committed to sustainability and environmental education, making it ideal for solar panel installation. We were tasked with designing and installing a solar energy solution that would reduce the school’s carbon footprint and serve as a practical educational tool for the students. This case study outlines this project’s methodology, installation process, and final outcome.


The project commenced with a comprehensive site assessment to determine the most effective solar panel configuration for Ysgol Glanwydden. Factors we considered included roof orientation, structural integrity, shading, and the school’s existing electrical infrastructure. Based on these assessments, a 26.46kW solar array was designed, consisting of 63 high-efficiency 420W panels. This configuration was chosen to maximise energy production and financial savings while also meeting the school’s energy requirements and environmental goals.

Following the design phase, we collaborated closely with the school’s administration to ensure the project would not disrupt daily activities. The system was designed to integrate seamlessly with the existing electrical setup, allowing optimal performance and simple maintenance.


The installation phase was meticulously planned and executed to minimise disruption. Our team installed the 63 solar panels on the school’s roof during the school holidays, which included a weekend. This approach ensured the safety of the students and staff, and allowed us to work without interfering with school activities.

The installation process involved mounting the panels securely on the roof, wiring them to the inverter, and integrating the system with the school’s electrical systems. Each panel was carefully positioned to maximise exposure to sunlight and optimise energy production. Rigorous final testing ensured the system’s performance and safety standards were met.


The installation of the 26.46kW solar array at Ysgol Glanwydden is projected to produce 24,110kWh of electricity per annum. This significant energy output is expected to save approximately 4.66 tons of CO2 emissions each year, equivalent to planting 214 trees. The school will benefit from reduced electricity costs and a smaller carbon footprint, aligning with its commitment to sustainability.

The solar installation serves as a valuable educational aid, allowing students to engage with renewable energy concepts and witness the practical benefits of sustainable approaches. The project has not only met the school’s energy and environmental goals but has also provided an excellent educational platform for future generations of students.

In conclusion, the successful installation at Ysgol Glanwydden highlights the feasibility and benefits of solar energy solutions in the public sector. This project demonstrates how schools can lead by example in the transition to renewable energy, encouraging a culture of sustainability and environmental care among students.