Have you ever wondered how electricity is transferred from power plants to homes and businesses across the UK? While you pay your business energy supplier every month for electricity, understanding the process behind it is crucial. This is where the electricity distribution network takes centre stage.
In this guide, we delve into the responsibility of the electricity distribution network and shed light on the role of distribution network operators.
The National Grid owns and operates an extensive high-voltage transmission grid known as the electricity distribution network, covering England and Wales.
This network interfaces with DNOs, which, in turn, distribute electricity to homes and businesses using privately owned power lines and underground cables.
A DNO is the company that owns and operates the infrastructure connecting the energy supply to your business premises.
The DNO is available to assist with various services, including establishing a new business energy connection, addressing meter queries, and providing support in the event of a power outage.
DNOs have a range of responsibilities, including managing sub-stations, transformers, and both underground and overhead cables, as well as facilitating the movement of the electricity supply to property meters and connecting premises to the electricity network.
It’s important to note, however, that DNOs are not accountable for aspects such as the National Grid, electricity generation and sales, and interconnectors.
Additionally, it’s crucial not to conflate the role of DNOs with that of business electricity suppliers, who specialize in providing business electricity tariffs, managing billing processes, and handling customer services for companies.
Six distinct companies manage a total of eight distribution networks, powering both residential and commercial properties. The following is a list of the DNOs and a table containing information about each operator.
Below is a compilation of the six distinct operators responsible for managing electricity distribution networks:
The following table provides information on regional DNOs, including key details. This resource enables you to identify your network operator and reach out to them for any inquiries or issues.
| Area | Distributor ID | DNO | Phone number |
| North Scotland | 17 | Scottish & Southern Electricity Networks | 0800 048 3515 |
| Central & Southern Scotland | 18 | SP Energy Networks | 0800 092 9290 |
| North East England | 15 | Northern Powergrid | 0800 011 3332 |
| North West England | 16 | Electricity North West | 0800 195 4141 |
| Yorkshire | 23 | Northern Powergrid | 0800 011 3332 |
| Merseyside, Cheshire, North Wales & North Shropshire | 13 | SP Energy Networks | 0800 001 5400 |
| East Midlands, West Midlands, South Wales & South West England | 11, 14, 21, 22 | Western Power Distribution | 0800 096 3080 |
| Eastern England | 10 | UK Power Networks | 0800 029 4285 |
| Central Southern England | 20 | Scottish & Southern Electricity Networks | 0800 048 3516 |
| London & South East England | 12, 19 | UK Power Networks | 0800 029 4285 |
The pricing structures of regional DNOs are contingent on the costs associated with operating and maintaining the infrastructure within their respective regions.
This variability in operational expenses for customers is a key factor contributing to the regional differences in business electricity rates.
An IDNO, or independent distribution network operator, is a company dedicated to establishing local electricity distribution networks within the larger framework of the DNO network. IDNOs take on the responsibilities of operating and maintaining these networks.
A notable distinction is that independent distribution network operators are not confined to specific regions; they have the flexibility to provide their services across England and Wales without geographical restrictions.
Below is a compilation of registered independent DNOs in England and Wales:
To initiate the search, utilize the Energy Networks Association search tool by entering your postcode.
Start your journey and compare business gas and electricity rates with Business Energy Comparison today. Use our price comparison tool and in less time than it takes to make a brew, we’ll compile your best prices from the UK’ s best suppliers.
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