11kV grid connections: what should your ICP quotation include?

An11kV grid connection quotation should do more than give you a price. It should explain what is being delivered, where the responsibilities sit, what the programme depends on and whether the contractor can also undertake the electrical work beyond the point of connection.

At High Voltage Distribution Contracting Ltd (HVDC), we help developers, businesses and project teams understand their connection requirements and turn them into a practical scope of work. From an initial network offer through to installation, testing and energisation, our aim is to make the process clear.

Start with the connection you need

An Independent Connection Provider (ICP) can undertake eligible contestable work associated with a new or modified electricity connection. These can include elements of design, civil engineering, cable installation, jointing, substations and the coordination of testing and commissioning. The precise division of work depends on the network operator, the approved design and the connection arrangement.

If you already have a Distribution Network Operator (DNO) connection offer, share it with us alongside its drawings, conditions and proposed point of connection. If you are at an earlier stage, we can help establish the information needed to develop a deliverable package and support the connection application process.

What should be included in an ICP quotation?

A useful quotation should identify the activities included in the price, rather than relying on a broad description such as “11kV connection”. For example, it should set out the design responsibilities; trenching, ducts and reinstatement; cable supply and installation; cable jointing and terminations; substations, transformers and switchgear where required; and the applicable testing, commissioning and handover activities.

It should also state what is excluded or being delivered by others. Network operator approvals, outages, final network operations, land rights, wayleaves and any non-contestable works can influence both cost and programme. Making these interfaces clear at tender stage helps prevent unexpected gaps later.

Understanding contestable and non-contestable works

Contestable works are the parts of the connection that an appropriately accredited ICP can deliver. Non-contestable works are retained by the relevant network operator. Appointing an ICP does not remove the need to coordinate with the DNO or, where applicable, an Independent Distribution Network Operator (IDNO).

HVDC can manage and coordinate the contestable delivery package, including specialist design and construction partners where appropriate. We work with the relevant network parties to establish responsibilities, approvals, inspections and handover requirements. The final scope is always determined by the project and network arrangements.

Beyond the grid connection: customer-side electrical works

The DNO or IDNO connection is often only one part of the electrical infrastructure a site needs. Once power reaches the agreed connection point, the customer may still require a substantial private electrical distribution system. HVDC can price and deliver these customer-side works alongside the ICP package, helping reduce the number of interfaces a client needs to manage.

Depending on the project, this can include private HV and LV distribution networks; customer substations, transformers and switchgear; HV/LV cable routes, containment, installation, jointing and terminations; earthing; protection and control interfaces; SCADA and multicore cabling; and associated testing and commissioning.

For renewable energy and major power projects, we can also undertake electrical balance-of-plant packages for battery energy storage systems (BESS) and solar PV, including interconnecting cabling, substation electrical installations and related control infrastructure. We can work as principal contractor for an agreed package or as a specialist electrical contractor alongside the wider project team.

The advantage for customers is a coordinated approach to both sides of the connection: one team can help plan the interface between the adopted network assets and the customer-owned installation, while clearly identifying where others retain responsibility.

What information should you bring to the first discussion?

Start with the site location and layout, required import or export capacity, target energisation date and any DNO offer already issued. Cable routes, proposed substation positions, existing supply details and a description of the equipment or development being connected are also useful.

You do not need every answer before speaking to us. An early conversation can identify missing design information, programme dependencies and the most appropriate split between ICP works, customer-side electrical works and activities retained by the network operator or other contractors.

Comparing quotations on a like-for-like basis

When comparing ICP quotations, look beyond the headline price. Check whether each contractor has included the same design activities, civils, cable works, substation equipment, testing, commissioning, network interfaces and customer-side installations. Also compare exclusions, assumptions, payment milestones and proposed programmes.

Talk to HVDC about your next connection

Whether you are planning an 11kV connection, a higher-voltage project or the electrical infrastructure behind a new industrial facility, BESS or Solar development, HVDC can help assess the scope and explain how the works could be delivered.

Send your connection offer, drawings or initial project details to sales@hvdc.org.uk, or visit https://hvdc.org.uk/to discuss your requirements.

From Concept to Connection: The High Voltage Partner That Delivers, On Time, First Time.

Website: https://hvdc.org.uk/

ICP Services: https://hvdc.org.uk/services/icp/

Robert Penty, Sales Director at HVDC

Robert Penty

Sales Director

Rob combines commercial leadership with technical expertise, guiding clients from initial enquiry through to project completion. As HVDC’s NERS Assessing Officer and Health & Safety Lead, he ensures high standards of safety, quality and compliance.

Planning a grid connection?

Talk to the senior team who will actually deliver it, from inception to energisation, up to 132kV.