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Navigation:

 1. DNO meaning: What is a DNO?
 2. DNO map
 3. Who is my DNO?
 4. Power cuts & Emergencies
 5. Gas Distribution Networks

 1. Home
 2. energy
 3. guides




WHO IS MY DISTRIBUTION NETWORK OPERATOR (DNO)?

Ever wondered who your regional energy distributor is or how your energy
actually gets to your home? Read on to discover who your regional DNO
(Distribution Network Operator) is and to learn more about the important role
the electricity and gas distribution networks play throughout Great Britain.



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If you need to contact your DNO to report an emergency, you can always emergency
dial 105 – no matter your region. This line is open 24/7 and free to call. See
Power Cuts & Emergencies for more information.


DNO MEANING: WHAT IS A DNO?

A DNO, or distribution network operator, is a company that owns and operates the
network of towers and cables that carry low-voltage electricity to our homes and
businesses from the electricity transmission network.

You’ll likely deal a lot more often with your electricity supplier (the company
you pay your bills to) rather than your DNO. Your DNO is the company that you
would contact for the following reasons:

 * To report a power cut
 * To receive assistance in an electrical emergency
 * To connect a property to the electricity network
 * To move your electricity meter
 * To report the shroading of overhead lines
 * To request tree trimming around overhead lines
 * To request network plans showing underground electricity cables

Great Britain has 14 different DNO regions. However, they are managed by just
six distribution companies, or DNOs.

 * Electricity North West serves customers across most of the North West of
   England.

 * Northern Powergrid is the DNO for the North East of England, Yorkshire and
   northern Lincolnshire. This includes large urban areas such as Leeds,
   Newcastle and Hull.

 * SP Energy Networks is the distribution company that operates the network in
   Merseyside, Cheshire, North Wales and North Shropshire, as well as in Central
   and Southern Scotland.

 * Scottish and Southern Electricity Networks (SSEN) owns and operates the
   electricity distribution networks in northern Scotland and central Southern
   England. The company is a subsidiary of SSE.

 * UK Power Networks is the DNO for London, the South East and East of England.

 * Western Power Distribution operates the electricity distribution network for
   Wales, the Midlands and South West England.


WHAT IS AN IDNO?

An IDNO is an Independent Distribution Network Operator. These companies own and
operate smaller distribution networks that are located within the areas that
DNOs serve.

Like DNOs, IDNOs are licensed by energy regulator Ofgem. While IDNOs do not have
all the same license conditions as the larger distribution network operators,
Ofgem does cap all IDNO charges for customers at a level that is consistent with
DNO charges.

The following list contains the current IDNOs in Great Britain:

 * Eclipse Power Limited
 * Energy Assets Networks Limited
 * Last Mile Electricity
 * ESP Electricity Limited
 * Fulcrum Electricity Assets Limited
 * Harlaxton Energy Networks Limited
 * Independent Power Networks Limited
 * Leep Electricity Network Limited
 * Murphy Power Distribution Limited
 * The Electricity Network Company Limited
 * UK Power Distribution Limited
 * Utility Assets Limited
 * Vattenfall Network Limited

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DNO MAP

The DNO map (or electricity distribution map) below shows Great Britain’s 14
electricity network regions and their corresponding distribution network
operators.


WHO IS MY DNO?

Your distribution network operator, or DNO, is the company that is responsible
for distributing electricity to your home or business. Unlike with electricity
suppliers (the company you pay your power bill to), most people don’t know who
their DNO is or what it does.

Looking to find out who your energy provider is?See Who is my Electricity
Supplier? and Who supplies my gas?

You can find your DNO in the table below by either locating your area or your
distributor ID, which consists of the first two digits on the second row of your
Meter Point Administration Number (MPAN). The distributor ID will range from 10
to 23.

Distribution Network Operators (DNOs) per region 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

What’s my Meter Point Administration Number (MPAN)*? Your MPAN is a unique
21-digit reference code that identifies your electricity meter. It can be found
on your bill and is often called your “supply number”. It will have the letter
“S” on the left side and two rows of numbers (with eight digits on top and 13
digits on the bottom). If you don’t have a bill on hand, you can contact your
electricity supplier to obtain the number.


WHO IS MY ELECTRICITY SUPPLIER?

If you’re looking for your electricity supplier, it’s not one of the companies
listed above – those are all DNOs. They deliver electricity to your home or
business, but they don’t provide the actual electricity that you consume.

Your supplier is the company that you pay your electricity bill to. It’s also
the company in charge of installing your electricity meter. However, your
electricity supplier is not who you should contact if you need to move your
electricity meter – that’s your DNO. This is because moving the meter also
involves moving the electricity cables that are laid in the ground.

If you have a look at your electricity bill, you’ll see that part of what you
pay to your electricity supplier (typically around 15%) is then paid to your DNO
in exchange for running and maintaining the electricity network.


POWER CUTS & EMERGENCIES

No matter who your DNO is, in the event of an electrical emergency (such as a
power cut), you can call 105 to report it. This line is open twenty-four hours a
day, seven days a week.

In the event of a power cut, we recommend that you also take the following
action (if possible):

 * See if other areas are affected. Either ask your neighbours or check the
   street lights.
 * Turn off electrical appliances that should not be left unattended. This
   includes irons and other devices that could cause harm if they restart when
   the power comes back on.
 * Check that the trip switch in your fuse box is turned on. If it is not in the
   on position, turn off all electrical appliances and attempt to reset the
   switch.
 * Don’t open your freezer. If unopened, some freezers can remain cold for up to
   12 hours! In the case that your food spoils, you may be able to file a claim
   on your home insurance.
 * Check on your vulnerable neighbours. Make sure they are warm and have
   sufficient food supplies.


GAS DISTRIBUTION NETWORKS

Before gas reaches your home, it must travel through a medium or low pressure
distribution network of pipelines, which are usually underground. There are
eight gas distribution networks (GDNs) in Great Britain. These are managed by
four different gas distribution companies.

In addition to managing the gas pipes, gas distribution companies also provide
the gas emergency services for their geographical region.

Reasons you would need to contact the operator of your gas distribution network
include the following:

 * To report a gas leak
 * If you smell gas
 * To get connected to the gas mains
 * To have your gas meter or pipes moved
 * To have your gas meter box installed/replaced (outside only!)


GAS DISTRIBUTION COMPANIES

The gas distribution companies that manage the network can also be called gas
transporters or distribution network operators (DNOs); however, the term DNO is
more commonly used to describe electricity distribution companies.

The table below breaks down Britain's four gas distribution companies and their
corresponding regions and customer service phone numbers:

Gas Distribution Companies Distributor Area Customer service phone number Cadent
Gas North West of England, West Midlands, East of England and North London 0800
389 8000 Northern Gas Networks North East of England, Northern Cumbria, and much
of Yorkshire 0800 040 7766 SGN Scotland and Southern England 0800 912 1700 Wales
& West Utilities Wales and the South West of England 0800 912 2999

If you smell gas or need to report a gas emergency, call 0800 111 999
immediately. This line is open 24 hours a day, seven days a week.


GAS DISTRIBUTION NETWORK MAP

The map below shows the gas distribution network a in Great Britain.


WHAT IS AN IGT?

Independent Gas Transporters (IGTs) operate and maintain local gas
transportation networks. They are connected to the Gas Distribution Network
(GDN) via either a system entry point or another IGT.

An estimated one million consumers are connected to IGT networks across Great
Britain, with new housing and commercial developments forming the largest share
of the IGT market.

The following nine IGTs are currently in operation:

 * GTC Pipelines
 * Independent pipelines
 * ES Pipelines
 * Last Mile Gas
 * Fulcrum Pipelines
 * Indigo Pipelines Limited
 * Energy Assets Pipelines Limited
 * Murphy Gas Networks Limited
 * Leep Gas Networks Limited

Updated on 31/08/2021

Allison Wall

A graduate of the University of North Carolina School of Media and Journalism,
Allison first began working at Selectra in 2019 as an energy advisor. She now
manages the content teams in the UK and Ireland.

Display by topic
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 * Renewable-energy
 * Schemes
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Cadent Gas Distribution Network: A Complete Guide

Distribution - 23/03/2022

Cadent Gas Distribution Network: A Complete Guide

Do you have a problem with your gas and need to contact your Distribution
Network Operator? If you’re in the Cadent Gas network area, our complete guide
to Cadent Gas has all the ways in which you can get in touch with them, as well
as information on Cadent Gas apprenticeships and careers.

Who is my Distribution Network Operator (DNO)?

Distribution -  31/08/2021

Who is my Distribution Network Operator (DNO)?

National Grid UK: What is it & How does it work?

Distribution -  31/08/2021

National Grid UK: What is it & How does it work?

Is Scottish Hydro now SSE? Your queries answered

Distribution -  31/08/2021

Is Scottish Hydro now SSE? Your queries answered

SSEN: Get connected in five easy steps!

Distribution -  31/08/2021

SSEN: Get connected in five easy steps!

SP Energy Networks: power cuts & new connections

Distribution -  31/08/2021

SP Energy Networks: power cuts & new connections

Northern Powergrid: power cuts & new connections

Distribution -  31/08/2021

Northern Powergrid: power cuts & new connections

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