Independent Connection Provider

Design Pack Submission:

The process of designing and implementing electrical infrastructure for adoption by Distribution Network Operators (DNOs) involves navigating a system of unique requirements and specifications (G81) set by SPEN. In the case of (SPEN, their approval process consists of a rigorous 5-stage design approval system.

D1 – High Level

D2 – Cables / OHLs

D3 – Plant Equipment

D4 – Substation / Civils

D5 – Protection / Communications

This multi-stage approach ensures that every aspect of the design meets SPEN’s specific technical standards, regulatory requirements, and operational needs.

To integrate the Tweed Valley Maltings site with the electrical grid, we undertook a comprehensive installation of 650 meters of 33kV cables, capable of meeting the site’s substantial energy demands. The installation process involved excavation work, precise cable laying, careful backfilling and thorough reinstatement of the affected areas, minimising environmental impact.

One aspect of this connection was the jointing of the cables and termination of the 33kV cables onto the switchboard.

The switchboard serves as the central hub for power distribution, efficiently channeling electricity to various smaller load circuits throughout the facility. Its proper installation and configuration are paramount to the long-term safety and reliability of the entire electrical system. The supply, installation, testing, and commissioning of a 33kV substation were carried out to facilitate seamless integration into the existing SPEN infrastructure. A substation is a crucial part of the electrical power system, serving as a node where voltage levels are transformed, and power is distributed. In this case, the 33kV substation functions as an intermediary point on the extra highvoltage network

Additionally, the substation houses various critical equipment such as 33kV circuit breakers that included a Bus Zone protection system, switches, and control systems that allow for the monitoring, protection, and control of power flow.

All other ancillary equipment including Battery Tripping Units and building services were included as part of the building installation.

This project is a strong example of a collaborative partnership working to deliver a project which includes Independent Connection Project works.

We have designed and built these works in close cooperation with our partners and the Distribution Network Operator, SPEN - SP Distribution, which is adopting the new 33,000-volt infrastructure.

Additionally, Lloyds Register Quality Assurance assessed the site as part of our audit of our NERS accreditation to enable full accreditations for the contestable works, ensuring that all necessary standards and regulations are met. This collaborative effort has allowed for the efficient design, construction, and integration of the new infrastructure, to deliver a high-quality project that meets both the client’s needs and regulatory requirements.

As an Independent Connection Provider (ICP), we manage the design and construction in-house, eliminating reliance on external parties like the Distribution Network Operator (DNO). This allows for efficient decision-making and problem solving whilst maintaining direct oversight of project costs and timelines, including delivery of the Biomass plant and all other private wire installation.

By taking full responsibility, we can actively manage expenses, optimise schedules, and address potential risks early in the process. This proactive approach not only enhances our ability to deliver the project efficiently but also provides Simpsons Malt with a single point of accountability, ensuring a successful upgrade of their facility’s electrical infrastructure.