Johnson Matthey Fuel Cells

Operating in 30 countries, Johnson Matthey is a worldwide research and development company, innovating sustainable solutions for various advanced technology industries.

As part of their operations, the company has two R&D facilities in the UK responsible for fuel cell technology innovation, and due to the high intensity of power being used onsite, their Swindon plant contacted EvoEnergy to investigate how a solar PV system could help them generate their own electricity and make considerable savings on their energy bills.

The client was interested in the biggest system size possible to fill the roof space therefore EvoEnergy advised a 250 kWp system, just slightly smaller than what the roof could accommodate. With the client’s financial interest in mind, having a system larger than 250 kWp would have put the array into the next feed-in tariff banding which paid almost 50% less for each unit of electricity generated. This advice was also welcomed by the client as any investment made by the company had to meet a certain investment criteria.

The initial survey of the client’s rooftop found that the many chimneys and ventilation pipes would create a large amount of localised shading on the roof, which would impact on the PV system’s generation. EvoEnergy therefore proposed an innovative solution using SolarEdge technology that would allow each solar panel to be controlled individually, minimising the effect of shade over the whole array; this would subsequently increase the productiveness of the entire system.

Another key benefit of SolarEdge technology is that the performance of each panel can be monitored remotely 24/7 via a web portal. Not only does this give the client access to their generation statistics for each individual panel and the system in general, but any issues on the PV system are easily and quickly identified via the online portal to allow prompt remedy of any faults in the future by EvoEnergy’s operation & maintenance team.


Quick Stats

  • Location Wiltshire
  • System Size 250 kWp
  • Panel model Trina Solar 275W
  • Inverter model Solar Edge
  • Anuual output
  • Annual CO2 savings