Location: Leicestershire
Project value: £350k
Services: Construction services, design

Our innovative technical solutions resulted in a vastly reduced project lead time and subsequently significant cost savings for the client.

Project details

Demonstrating the company’s commitment to implement more resource-efficient methods in its manufacturing process, the ‘hard-wired’ solar development will provide 30% of the site’s annual electricity demand, enabling the facility to reduce its carbon footprint and reliance on the national grid.

Green Frog Connect were responsible for the turnkey design and installation of the 11kV cable that connects the solar park to the factory, as well as an extension of the existing 11kV switchboard which allowed the solar park to be integrated into the factory’s existing network.

The project, which in part aimed to address the company’s sustainability concerns, was made technically challenging as the solar farm is located some distance from the factory itself. The existing Distribution Network Operator (DNO) metering substation supplying the factory required a generator constraint panel for the solar farm which was located two kilometres away.

In partnership with the rest of the project team, our challenge was to find a reliable solution to transfer the constraint signals to the solar park. With tight client deadlines and restrictive manufacturer availability, we designed and built our innovative technical solution in-house.

Using a fibre cable, complete with programmable converters, we were able to transform the hardwired volt free contacts via the ethernet. Our technical specialists designed and personally built the required panels mirroring each other at the remote ends. Each panel is built with an integrated supply unit with battery support should external supplies fail. We addressed any potential failure in communication by building in a watchdog for continuous monitoring to curtail generation if required to avoid tripping of any existing factory supplies.

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The existing DNO metering substation supplying the factory required a generator constrain panel for the solar farm which was located some two kilometres away. Our challenge was to find a reliable solution to transfer the constraint signals to the solar park.

Our solution was to use a fibre cable, complete with programable converters, to transform the hardwired volt free contacts via the ethernet. Due to tight client deadlines, and typical manufacturer availability, we designed and built the required panels mirroring each other at the remote ends. A built-in watchdog for continuous monitoring ensured any failure in communication would curtail generation and avoid tripping of any existing factory supplies. Each panel is built with an integrated supply unit with battery support should external supplies fail.

The post Rising to the challenge appeared first on Green Frog Connect.

Location: Shropshire
Capacity: 3.5MW
Project length: Six months
Client: Lightsource Renewable Energy

Key client benefits

• Completed on time allowing the client to meet their feed-in tariff deadline.
• Completed on budget despite challenging off-site cable route along A41 which went through a built-up area, and over a shallow canal bridge.

Project details

The project comprised a 5MW (export) electricity connection to a new solar park. We acted as the Independent Connections Provider and undertook the following scope of services:

• Construction of the electricity grid connection contestable works. Single 3.5MW teed connection to the SPEN distribution network, 1.2km of 11kV power cabling systems and optical fibre, new substation building with associated switchgear, auxiliary plant, and equipment.
• Construction of the balance of plant sequential switchgear comprising the installation of 11kV switchgear, substation civil works, and 0.7km of 11kV power cabling systems.

The post Solar Park at Fields Farm appeared first on Green Frog Connect.

Location: Malmesbury, Wiltshire
Capacity: 7.6MW
Project length: Two months
Client: British Solar Renewables

Key client benefits

• Design approval and energisation was achieved in only two months allowing the client to meet their ROC deadline.

Project details

A 7.6MW solar park, this project was connected to the local 33kV network via teed connection 500m from the site. The substation building provided was of GRP construction. Our services comprised:

• Design, project management and construction for the new contestable works
• Installation of 33kV metering substation
• Associated jointing, excavation and cable pulling works
• Project Management of non-contestable works

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