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New business energy connection guide 2026

Opening a new site or increasing your supply capacity? Understand the connection process, likely timescales and costs before committing to your next step.

At Kilowatt Energy, we manage the full process from application to your first fixed-rate bill, helping you keep the network work and energy contract aligned.

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Two construction workers in safety gear observing large industrial site with cranes and water

A physical connection and an energy supply contract are separate arrangements. Plan for both.

Start with your site

Do you need a new connection?

A new business energy connection establishes a permanent electricity or gas supply to premises that have never been connected, or significantly upgrades an existing supply.

Unlike switching supplier, it involves physical work. This can include laying cables or service pipes, upgrading transformers and arranging metering.

  • A new-build commercial unit or a previously unoccupied industrial building without a suitable supply.
  • A site needing higher voltage or greater capacity for equipment and expansion.
  • A temporary construction supply or rural premises with no nearby network connection.

If your existing supply is suitable and you only want a different tariff, start with business energy comparison instead.

Scope, cost and timing

Standard or bespoke?

The infrastructure at or near your site determines how much work is needed. Confirm your capacity requirements before asking for a quotation.

Standard connection

For sites where the existing network is close by and standard equipment can meet your requirements.

Electricity work typically involves a new cable from the local distribution network. Gas work usually involves a service pipe from the main to your meter point.

Typically 5 to 30 working days

Most standard connections complete within this period, depending on the network operator and complexity of the site work. This is generally the fastest and least expensive route.

Bespoke connection

For sites where standard infrastructure cannot provide the voltage, capacity or access you need.

High-voltage connections, significant network reinforcement and premises far from existing network assets require a more detailed design and quotation process.

Allow for a longer programme

Large commercial and industrial projects can take significantly longer. Ask for a site-specific schedule covering design, permissions, network work and metering.

Three things to plan around

5 days to 12 months

The overall range for a new connection, depending on the work required. Your opening date needs a confirmed programme, not an assumption.

Fees vary by supplier

Some suppliers charge nothing for a new connection; others charge hundreds. Check these fees separately from physical network costs.

Your supplier, your choice

You choose your business energy supplier independently of the connection. Compare supply terms as well as connection quotations.

From application to first bill

Keep each stage connected

Your electricity Distribution Network Operator (DNO), or gas network operator, handles the physical network connection. Your energy supplier provides and bills for the energy you use.

These are separate commercial relationships and contracts. Metering arrangements also need to be coordinated so a completed connection is ready to use.

Get your information ready

Gather your site address and plans, intended opening date, ownership or tenancy details, and any existing supply references. Ask your electrical or gas contractor to confirm the capacity your equipment needs.

  1. 1. Define and apply

    Confirm whether you need a new supply, an upgrade or a temporary connection. Submit your requirements to the appropriate network operator.

  2. 2. Review the quotation

    Check the design, scope, exclusions and payment terms. Connection costs vary significantly, so get multiple quotes where available before committing.

  3. 3. Coordinate the works

    Agree access, permissions and responsibilities for site preparation. Confirm how network work fits around your building programme and internal installation.

  4. 4. Arrange supply and metering

    Compare supplier contracts and agree the supply start date. Coordinate meter installation and the checks required before the supply can be made live.

  5. 5. Check the first bill

    Record opening readings and check the meter details, billing dates, agreed rates and standing charges. Raise any mismatch promptly with supporting records.

Compare the whole cost

What should your quote cover?

There is no single connection price for every business. Distance from the network, required capacity and site conditions all affect the work. Separate one-off costs from ongoing energy charges.

Network connection

Ask which cables, pipes, reinforcement, excavation and reinstatement are included. Confirm who handles permissions and any work outside the quoted scope.

Site work and metering

Check responsibility for internal wiring or pipework, meter housing and installation. Do not assume every contractor's work is covered by one quotation.

Energy supply

Compare supplier setup fees, unit rates, standing charges and contract length. Check when charges begin and how the agreement treats any delay to your opening date.

For the supply side of your project, explore our 2026 business energy comparison guide. Setting up other utilities too? We can also help with business water management.

Useful answers

Before you commit

A few early checks can help you avoid ordering the wrong service or setting an opening date before the supply is ready.

Does moving premises mean I need a new connection?
Not necessarily. If the premises already have a suitable live supply, you may need to register a change of occupier and arrange a supply contract instead. Check the existing meters, capacity and supply status before applying for new infrastructure.
Can I choose a different supplier from my network operator?
Yes. Your network operator and energy supplier perform different roles. The physical connection does not tie you to a particular business energy supplier, so you can compare supply contracts independently.
What can delay a new business energy connection?
Network reinforcement, permissions, access restrictions and incomplete site preparation can affect the programme. Metering and supply arrangements also need to be ready. Ask for milestones and confirm dependencies before scheduling your opening.
How does Kilowatt Energy help?
We manage the process from application to your first fixed-rate bill and compare business energy prices. We are based in Derby and support businesses across the UK. Tell us about your premises, capacity requirements and planned opening date so we can discuss the next steps.

Your next premises. A clearer plan.

Let's get your connection moving

Share your site details and target opening date. We'll help you understand the connection requirements and compare the energy supply options for your business.

Talk to Kilowatt Energy