Telford & Wrekin Council – Telford Ice Rink

Drivers for the project

The Council applied for and were 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 Telford Ice Rink 149.52kWp.

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.

A 149.52 kWp system was chosen, comprising of 534 No. 280Wp panels and 3 No. 36kW Huawei inverters. Suitable isolators, a new dedicated PV distribution board and generation meter were installed and fitted seamlessly into the sites existing electrical network.

The system will produce enough electricity (120,365 kWh per annum) to power around 33 residential homes per year or power 55 electric cars. After 25 years in operation the project is predicted to have saved 235 tonnes of CO2e, an equivalent of 1,215,933 fossil fuelled car miles, 154 fossil fuelled cars off the road and 940 pine trees planted.

Telford Ice Rink, was optimised to an array over factor of 1.246, and positioned to minimise cable losses against array position with minimal edge shading, was an excellent example of how easy PV installation can be when a building is properly future proofed, in its electrical supply and plant room provision, and access to all areas of the building are properly planned out.

Challenges

A new structural mounting frame was required to be built to house the inverters as close to the mains distribution board as possible. It was required to integrate the PV system with the sites exiting CHP plant, ensuring the both work together un unison to provide the most effective supply to the site and ensuring any export is minimised.

Results

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

Project details

Location
TELFORD
System size
149.52 KWP
Panel Manufacturer
TRINA 280W
Number of panels
534
Inverter Manufacturer
HUAWEI
Estimated System Annual Performance
120,365 KWH
CO2 SAVINGS OVER 25 YEARS
235 TONNES
Completion date
November 2019
Telford & Wrekin Council – Telford Ice Rink website