Distribution network operator: Difference between revisions

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{{Short description|Operator of the electric power distribution system}}

{{more citations needed|date=September 2013}}

A '''distribution network operator''' ('''DNO'''), also known as a '''distribution system operator''' ('''DSO'''), is the operator of the [[electric power distribution]] system which delivers electricity to most end users. Each country may have many local distribution network operators, which are separate from the [[transmission system operator]], (responsible for transporting power in bulk around the country).

== France ==

In [[France]], [[Enedis]], a subsidiary of [[Électricité de France|EDF]], distributes approximately 95% of electricity, with the remaining 5% distributed by 160 local electricity and gas distribution companies (''entreprises locales de distribution d'électricité et de gaz'' or ELD).<ref name=proriol>[[Jean Proriol]], [http://www.assemblee-nationale.fr/13/rap-info/i3307.asp Rapport d'information {{n°|No.&nbsp;3307}} déposé par la commission des affaires économiques de l'Assemblée nationale], assemblee-nationale.fr du 5 avril 2011, consulté le 30 avril 2020</ref>

== Great Britain ==

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=== History ===

[[File:Distribution Network Operators.PNG|220px|thumb|Map of DNO licence areas, coloured by company group (situation as of 2010)]]

In 1990, the area boards were replaced by [[regional electricity company|regional electricity companies]], which were then privatised. The distribution network operators are the successors to the distribution arms of the regional electricity companies. The distribution network operators have a trade association called the [[Energy Networks Association (United Kingdom)|Energy Networks Association]].

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! GSP Group ID

! Area ID

! TLF Zone

! Area

! DNO company

! Group

! Former area electricity board

! MPAS Operator ID

|-

| _A

| 10

| 1

| East England

| Eastern Power Networks plc

| [[UK Power Networks]]

| [[Eastern Electricity]]

| EELC

|-

| _B

| 11

| 2

| East Midlands

| National Grid Electricity Distribution (East Midlands) plc

| [[National Grid Electricity Distribution]]

| [[East Midlands Electricity]]

| EMEB

|-

| _C

| 12

| 3

| London

| London Power Networks plc

| [[UK Power Networks]]

| [[London Electricity Board]]

| LOND

|-

| _D

| 13

| 4

| North Wales, Merseyside and Cheshire

| SP Manweb plc

| [[ScottishPower#Energy Networks|SP Energy Networks]]

| [[MANWEB]]

| MANW

|-

| _E

| 14

| 5

| West Midlands

| National Grid Electricity Distribution (West Midlands) plc

| [[National Grid Electricity Distribution]]

| [[Midlands Electricity]]

| MIDE

|-

| _F

| 15

| 6

| North East England

| Northern Powergrid (Northeast) plc

| [[Northern Powergrid]]

| [[North Eastern Electricity Board]]

| NEEB

|-

| _G

| 16

| 7

| North West England

| Electricity North West Limited

| [[Electricity North West]]

| [[NORWEB]]

| NORW

|-

| _P

| 17

| 14

| North Scotland

| Scottish Hydro -Electric Power Distribution plc

| [[Scottish and Southern Electricity Networks]]

| [[North of Scotland Hydro-Electric Board]]

| HYDE

|-

| _N

| 18

| 13

| South and Central Scotland

| SP Distribution plc

| [[ScottishPower#Energy Networks|SP Energy Networks]]

| [[South of Scotland Electricity Board]]

| SPOW

|-

| _J

| 19

| 9

| South East England

| South Eastern Power Networks plc

| [[UK Power Networks]]

| [[Seeboard]]

| SEEB

|-

| _H

| 20

| 8

| Southern England

| Southern Electric Power Distribution plc

| [[Scottish and Southern Electricity Networks]]

| [[Southern Electric]]

| SOUT

|-

| _K

| 21

| 10

| South Wales

| National Grid Electricity Distribution (South Wales) plc

| [[National Grid Electricity Distribution]]

| [[SWALEC]]

| SWAE

|-

| _L

| 22

| 11

| South West England

| National Grid Electricity Distribution (South West) plc

| [[National Grid Electricity Distribution]]

| [[SWEB Energy|SWEB]]

| SWEB

|-

| _M

| 23

| 12

| Yorkshire

| Northern Powergrid (Yorkshire) plc

| [[Northern Powergrid]]

| [[Yorkshire Electricity]]

| YELG

|}

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|-

! 34

| mua Electricity Ltd

| Murphy Power

| mua Electricity Ltd

| Murphy Power

| MPDL

|-

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|Optimal Power Networks

|Optimal Power Networks

|FORB

|OPN

|-

!38

|Indigo Power Limited

|Indigo Power Limited

|INDI

|-

!39

|Squire Energy Metering Ltd

|Squire Energy Metering Ltd

|STRK

|-

!40

|Utility Assets Limited

|Utility Assets Limited

|UTAL

|-

!42

|Advanced Electricity Networks

|Advanced Electricity Networks

|AENL

|-

!43

|IDCS Ltd

|IDCS Ltd

|IDCS

|}