Understanding PES Areas, managing the UK electricity network

Who is your distributor, and how are they affecting the price you pay?

Distributors are responsible for the Energy Network - the actual pylons, underground cables, substations and so on. Everything from the power station to your commercial electricity meter. When there is a power cut or cables are downed by bad weather, it is the Distributor that deals with it, not your energy supplier (although they can be part of the same company). This is one of the reasons why changing suppliers is easy - the electricity supplier is not responsible for the cabling, metering, etc - basically anything that could cause issues.

If you want to upgrade or downgrade your energy supply, then this is dealt with by your local distributor. If you are adding large scale solar panels, wind turbines or any other generation to your site and want to sell electricity back to the grid, then again it's the distributor that we would work with.

Knowing your PES / Distributor area will also help you find the right price, different areas have different standing charges and so on.

If you need help with a new site/supply please get in touch, we can help you find the information you need and save time and money.

PES / Distributor Areas

In 1997, following privatisation of the electricity industry there were fourteen Public Electricity Suppliers (PES) in UK which replaced the old area and Scottish electricity boards. Whilst the geographical areas of these former PESs remain unchanged the industry itself is somewhat different. Although distribution has been separated altogether from supply, the former PES areas are used as the basis of current day distribution areas. The PES or Distribution area that you are in has a significant effect on your energy costs. This applies to standing charges, availability charges as well as unit rates.

To find out which PES / Distributor area your site is in, simply consult the map below. Moving the mouse over the various areas shows the post codes covered, useful if you're not sure which area you are in. Each area on the map links to a profile of the various distributors and their history and a full list of the postcodes covered.

UK Distributor Map

Move mouse or cursor over the map to display post codes covered, and click for additional information including PES Code.

Pes Area 17 Pes Area 18 Pes Area 15 Pes Area 23 Pes Area 16 Pes Area 13 Pes Area 10 Pes Area 11 Pes Area 14 Pes Area 21 Pes Area 22 Pes Area 20 Pes Area 19 Pes Area 12

Follow the links, if you need help upgrading or downgrading your energy supply or just finding out your Mpan and Supplier.

What's my PES Area? To search our database please enter the first part of your postcode, e.g. EH26 8 or W1 4.

Distribution Network Area Area ID
Eastern Electric East England 10
East Midlands Electricity East Midlands 11
London Electricity London 12
Manweb North Wales / Cheshire 13
Midlands Electricity West Midlands 14
Northern Electric North East England 15
Norweb North West England 16
Scottish Hydro Electric North Scotland 17
Scottish Power South Scotland 18
SEEBOARD South East England 19
Southern Electric Southern England 20
South Wales Electricity South Wales 21
South Western Electricity South West England 22
Yorkshire Electricity Yorkshire 23