What is a DNO and how do you find yours for business charging?

Your distribution network operator manages the local electricity network and assesses connection work. Find the operator for your premises using your postcode and confirm the supply details before applying. Keep connection enquiries separate from fault reporting: UK Power Networks directs power-cut calls to 105 [S4]. Your installer should identify the appropriate connection route. Checked October 2026.

Last checked 17 October 2026

What is a DNO responsible for?

A distribution network operator (DNO) operates local electricity infrastructure, including cables and substations. Its role includes connecting new charging installations to the local network [S1]. For your project, it is the organisation to involve when the existing supply or proposed electrical demand needs network assessment.

Keep this role separate from the company selling you electricity. Ofgem distinguishes the supplier, responsible for providing energy, from the operator responsible for the network carrying it [S2]. Buying a business tariff does not establish that the local connection can support your proposed chargers.

Your installer has another role: designing and installing the charging system. Ask it to explain where its work ends and network work begins. Put that boundary in the quote so responsibility for an application, connection alteration or commissioning step does not fall between contractors.

Who is the DNO in your area?

Use your premises’ postcode to identify the local operator through the Energy Networks Association lookup. National Grid Electricity Distribution’s guide describes this postcode route, and Ofgem directs customers to the association when finding their operator [S1], [S2].

Then confirm that the result matches the actual supply you intend to use. If you occupy a unit on a larger estate, ask your landlord or facilities team for the relevant connection paperwork. Give the installer the site address, meter reference and available supply records, rather than relying on a regional name alone.

Save the connection enquiry contact and reference with your project records. Keep the power-cut reporting route separate. UK Power Networks displays 105 for power-cut calls [S4]; a new charging project belongs with the connections service. Do not use a fault-reporting line to seek a budget installation quote.

There is no need to publish your meter or account details to obtain general guidance. Share the records directly with the people assessing your project, using the route they specify.

What should you send the DNO before installing business chargers?

Begin with your charging needs. UK Power Networks’ business process asks where you want to charge, how many chargers you need and their type. Its process moves from defining the requirement through installer appointment, preparation and quotation [S3].

Use this preparation table for the installer discussion. It is a proposed checklist, not a replacement for the operator’s application form.

Define the units in the brief. Kilowatts (kW) describe power, while kilowatt-hours (kWh) describe energy. Give your installer the operating pattern as well as equipment ratings. Ask it to document the demand calculation, the assumptions about simultaneous charging and any proposed controls.

Use the supply capacity guide to prepare questions rather than opening electrical equipment yourself.

Does a DNO application replace planning or landlord consent?

Treat the network connection, property permissions and physical installation as separate workstreams. UK Power Networks explicitly tells businesses in multi-occupied buildings to contact the building owner before installation [S3]. Ask your project team to identify all permissions needed for your premises.

Do not assume network correspondence gives authority to dig across someone else’s land or reserve parking bays. Ask who checks ownership boundaries, access routes and the proposed cable route. Have your solicitor review landlord, lender or land-rights documents where relevant.

For planning questions, use the planning guide and confirm the position with your council. A network design and a planning decision answer different questions. Record both in the project programme before setting a public opening date.

How should you handle connection costs and timescales?

Request a quotation tied to your actual requirement. National Grid Electricity Distribution lists separate services for capacity changes, supply movements and EV connections [S5]. Ask which of these your project needs, which party orders them and what must happen before installation can proceed.

For each proposal, request an itemised division between network work, on-site electrical work, equipment and civil works. Ask which figures are estimates, which have been quoted and how long each offer remains valid. Read the DNO application guide before comparing programmes from different bidders.

If your brief includes solar panels or batteries, flag that before the connection design is finalised. G99 is an engineering recommendation governing the connection of generation equipment; UK Power Networks describes it within its generation and large-scale storage application route [S6]. Your designer should identify the appropriate route, including any relevant export proposal.

Do not copy another site’s waiting time into your project plan. Ask for the dependencies and an estimated programme for your own connection. If phasing or load management is offered, request the operating limits and the effect on the service drivers will receive. Compare those details through the grid upgrade cost guide.

What should you do next?

Find the operator for your premises and gather your supply records. Prepare a parking and charging brief, then ask an installer to identify the connection route, permissions and responsibilities before you order equipment.

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