Location: UK wide
Client: AMP Clean Energy
Services: ICP, Engineering, Procurement and Construction services

Project details

The purpose of the project was to help support the growth of renewables by providing energy on-demand when the wind doesn’t blow and the sun doesn’t shine. This helps to balance the electricity grid ensuring that enough power is generated whilst supporting the transition to a low carbon economy. Green Frog Connect were appointed to act as the ICP for grid connections and as EPC for the construction of the six gas peaking power plants as part of AMP Clean Energy’s Urban Reserve project.

We faced a challenge in that all of the sites were located on brownfield industrial estates. Using our expertise we saved space and ensured that all sites were built to the highest safety standard whilst accommodating multiple activities. The first project began in late 2020 with each following mobilisation taking place on a weekly basis. The first site became fully energised in March 2021.

All six sites were up and running simultaneously and throughout the project Green Frog Connect demonstrated the depth and flexibility of our construction teams to ensure that AMP Clean Energy was confident in our delivery promises.

Our initial appointment was to undertake the contestable design and place orders for long lead time equipment. The client’s gas engines and HV switch room had already been ordered which helped to reduce construction activities to 20 weeks per project. We had full responsibility for the contestable works, site civil construction, the electrical balance of plant installation and co-ordination of the full site commissioning through to client handover.

Green Frog Connect managed to maintain momentum across the project and ensured all sites were connected on time and within the budget set by the client. We worked closely with the client’s Original Equipment Manufacturer (OEM), co-ordinating all activity with the Distribution Network Operator to ensure that the client’s route to market was achieved at the earliest opportunity.

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Suncredit’s Development Director, John Leith, says, “We received the first notification to dispatch at 09:11 on Monday 26th November and ramped up in less than 120 seconds. We would like to take this opportunity to thank all those who have been involved in the delivery of this project and look forward to working together in the future.”

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You can find more details on the project here.

Click here to watch the site develop on Youtube.

The post Timelapse of Swansea West site construction appeared first on Green Frog Connect.

Location: Swansea West
Capacity: 40MW
Project length: Seven months
Client: Green Frog Power

Key client benefits

• We designed and negotiated a simplified connection arrangement which saved the client in excess of £500k compared to their original arrangement.
• We diverted a private overhead line that was originally routed through the site and managed all outages to ensure that the businesses being fed did not lose supply.
• A shared electricity and gas trench for the off-site connections was coordinated to minimise costs and reduce the amount of disruption to the local community.

Time-lapse of site build

Click here to watch the site develop on Youtube.

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Location: Nottingham
Capacity: 40MW
Project length: Two phases, each comprising seven months
Client: Viridis 178 Ltd

Key client benefits

• We completed the highest risk element of the project – a dual directional drill under the A52 in central Nottingham for the electricity connection – on time and under budget. The A52 is critical national infrastructure operated by Highways England. Whilst installing the duct for Phase A, the opportunity was taken to install a second duct for Phase B, despite it being a speculative development at the time, saving the client more than £100,000 on Phase B.
• The project completed on time, ahead of the winter period, allowing the client to earn valuable income during times of high electricity demand and to provide support to the local and national electricity networks.
• Project completed under budget.

Project details

The project was constructed in two phases, each taking seven months. Phase A (20MW) and Phase B (20MW) each have their own 33kV connection to Western Power Distribution, as well as their own connection to the local Intermediate Pressure (IP) gas network. Our services comprised:

• The design and construction of the electricity grid connection contestable works. Two 20MW tee-off connections to the WPD distribution network.
• The design and construction of the balance of plant, including switchgear, transformers, power cabling systems, SCADA/control system, the auxiliary power system and a security system.
• The design and construction of the civil works including ground works, reinforced concrete structures, fencing and access roads.

The installation and commissioning of the 27 GE Jenbacher Generator Sets, and the gas connections, were undertaken by Green Frog Genovate and Green Frog Gas Utilities respectively. Green Frog Trading now dispatch the plant to ensure Capacity Market events are met, and also operates on the open market providing power at times when renewable generation is low, and/or when demand is high.

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Providing reserve power to the National Grid through the Capacity Market, the site will help to ensure that reliable energy capacity is available at times of extreme network stress.

The new gas-fired power generation site will provide 40MW of back-up generation to the energy distribution network, reducing the danger of blackouts for homes and businesses when the National Grid is under strain, for instance when renewable generation suddenly drops off and large centralised generators can’t respond fast enough to meet the demand. Adjacent to an existing 20MW diesel generation site which has been in use for the past 5 years, the new site will be ready to operate by the end of 2017. Green Frog Connect are acting as the principal contractor as well as the Independent Connection Provider.

Tom Drake, Director of Green Frog Connect, said: “This is an exciting moment for us as we demonstrate our progression towards reducing carbon emissions and look to the future in terms of working towards flexible, zero carbon power provision. Lowering carbon emissions is a priority for us, and co-locating the two sites ensures we can provide power at times when renewable generation is low, or when demand is high.”

The 27 generators required by the site will be installed, commissioned and maintained by Green Frog Genovate and the gas connection will be undertaken by Green Frog Gas Utilities. Once operational, the site will be controlled by Green Frog Trading to meet the requirements of the Capacity Market and to operate on the open market.

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