Oakengates Tennis Centre – Telford & Wrekin Council

Drivers for the project

The Council applied for and was granted funding from European Regional Development Fund (ERDF) to invest in technology to reduce their Carbon Emissions and help save on energy costs.

Appointment

We secured this project via a competitive tendering process and worked as the main contractor and principle designer under a JCT Contract for the Design, Installation, commissioning of a solar installations onto the roof of the Oakengates Tennis Centre 78.4kWp

Solution

As part of the initial design phase our design engineering team reviewed the clients half hourly electrical data in order to size the solar system appropriately. A number of options were presented to the client based on current and future electrical consumption usage on site.

Electrical schematics were produced to include the current set-up on site such as the CHP plant to show the integration of the Solar project and relevant connection points to the client’s network. The final system size was 78.4kWp, consisting of 280 No. 280Wp panels and 2 No. 33kW Huawei inverters. Suitable isolators, a new generation meter was installed and fitted seamlessly into the sites existing electrical network.

A predicted 99% of generated energy will be consumed directly on site by the client. The system will produce enough electricity (64,911 kWh per annum) to power around 18 residential homes per year or power 30 electric cars. After 25 years in operation the project is predicted to have saved 129.3 tonnes of CO2e, an equivalent of 668,894 fossil fuelled car miles, 85 fossil fuelled cars off the road and 517 pine trees planted.

Challenges

Careful consideration was given to maintain adequate clearance from skylights while maximising the south facing array. The barrelled nature of the roof meant the array had to be designed in a way to ensure panel self-cleaning was still maintained. A singular supply cable from the main complex meant the system had to be limited to the cables constrains, thus a thorough analysis on the supply cable was undertaken. The system was also required to connect with the sites existing BMS.

Results

The initial programme was to complete the installation within one week and we successfully delivered a fully commissioned system following a client handover within the contracted period

 

Project details

  • Location: TELFORD
  • System Size: 78.4 KWP
  • Panel Manufacturer: TRINA 280W
  • Number of Panels: 280
  • Inverter Manufacturer: HUAWEI
  • Estimated System Annual Performance: 64,911 KWH
  • CO2 SAVINGS OVER 25 YEARS: 129.3 TONNES
  • Completion date: NOV 2019