Welcome to the BETA version of our new interactive map of Great Britain's electricity transmission system. The map is illustrative and highlights an identified need to transmit volumes of energy from point A to point B and does not represent specific cable routes.

Now the Pathway to 2030 holistic network design has been published, the next steps involve more detailed network design which will include specific locations and designs for projects. These will be designed and consulted on in future by the organisations appointed to fulfil the needs identified. 

This map allows you to navigate through the Electricity Ten Year Statement (ETYS) and the Network Options Assessment (NOA).  

The ETYS is the ESO’s view of future transmission requirements and the capability of Great Britain’s National Electricity Transmission System (NETS) over the next 10 years.  

The NOA provides recommendations for which reinforcement projects should receive investment.  

We have also included the Holistic Network Design’s (HND) offshore network, which is part of our Pathway to 2030 work. You can use the timeline feature on the top right to see how the network could be developed through time up to 2030. 

We hope you enjoy this more dynamic and interactive experience - we are still developing these maps, so please let us know if you have any feedback on any of the ETYS or NOA elements.

Block

Interactive Map

This is the BETA version of our map of Great Britain’s electricity transmission system.

The map is for illustrative purposes. It highlights an identified need to transmit volumes of energy from point A to point B and does not represent specific cable routes.


 

Timeline

  • 2023
  • 2024
  • 2025
  • 2026
  • 2027
  • 2028
  • 2029
  • 2030
HND

Show Labels

Assets:
NOA recommendations:
Reinforcement Type:
Boundaries:

B0

B0
Capacity:
1150
B0

B0

B0
Capacity:
1150
B0

B0

B0
Capacity:
1150
B0

B10

B10
Capacity:
0
For the ETYS we do not study all boundaries, specifically those where no significant changes in the FES generation and demand data have been identified in previous years

B10

B10
Capacity:
0
For the ETYS we do not study all boundaries, specifically those where no significant changes in the FES generation and demand data have been identified in previous years

B10

B10
Capacity:
0
For the ETYS we do not study all boundaries, specifically those where no significant changes in the FES generation and demand data have been identified in previous years

B11

B11
Capacity:
0
b11

B11

B11
Capacity:
0
b11

B11

B11
Capacity:
0
b11

B12

B12
Capacity:
0
b12

B12

B12
Capacity:
0
b12

B12

B12
Capacity:
0
b12

B13

B13
Capacity:
2100
b13

B13

B13
Capacity:
2100
b13

B13

B13
Capacity:
2100
b13

B14

B14
Capacity:
11600
b14

B14

B14
Capacity:
11600
b14

B14

B14
Capacity:
11600
b14

B15

B15
Capacity:
0
b15

B15

B15
Capacity:
0
b15

B15

B15
Capacity:
0
b15

B16

B16
Capacity:
0
b16

B16

B16
Capacity:
0
b16

B16

B16
Capacity:
0
b16

B17

B17
Capacity:
0
b17

B17

B17
Capacity:
0
b17

B17

B17
Capacity:
0
b17

B1a

B1a
Capacity:
1850
b1a

B1a

B1a
Capacity:
1850
b1a

B1a

B1a
Capacity:
1850
b1a

B2

B2
Capacity:
2600
b2

B2

B2
Capacity:
2600
b2

B2

B2
Capacity:
2600
b2

B2a

B2a
Capacity:
0
b2a

B2a

B2a
Capacity:
0
b2a

B2a

B2a
Capacity:
0
b2a

B3b

B3b
Capacity:
450
b3b

B3b

B3b
Capacity:
450
b3b

B3b

B3b
Capacity:
450
b3b

B4

B4
Capacity:
3227
b4

B4

B4
Capacity:
3227
b4

B4

B4
Capacity:
3227
b4

B5

B5
Capacity:
3631
b5

B5

B5
Capacity:
3631
b5

B5

B5
Capacity:
3631
b5

B6

B6
Capacity:
6130
b6

B6

B6
Capacity:
6130
b6

B6

B6
Capacity:
6130
b6

B7

B7
Capacity:
7005
b7

B7

B7
Capacity:
7005
b7

B7

B7
Capacity:
7005
b7

B7a

B7a
Capacity:
9432
b7a

B7a

B7a
Capacity:
9432
b7a

B7a

B7a
Capacity:
9432
b7a

B8

B8
Capacity:
11403
b8

B8

B8
Capacity:
11403
b8

B8

B8
Capacity:
11403
b8

B9

B9
Capacity:
12500
b9

B9

B9
Capacity:
12500
b9

B9

B9
Capacity:
12500
b9

EC1

EC1
Capacity:
0
ec1

EC1

EC1
Capacity:
0
ec1

EC1

EC1
Capacity:
0
ec1

EC3

EC3
Capacity:
0
ec3

EC3

EC3
Capacity:
0
ec3

EC3

EC3
Capacity:
0
ec3

EC5

EC5
Capacity:
2944
ec5

EC5

EC5
Capacity:
2944
ec5

EC5

EC5
Capacity:
2944
ec5

LE1

LE1
Capacity:
9300
le1

LE1

LE1
Capacity:
9300
le1

LE1

LE1
Capacity:
9300
le1

NW1

NW1
Capacity:
1800
nw1

NW1

NW1
Capacity:
1800
nw1

NW1

NW1
Capacity:
1800
nw1

NW2

NW2
Capacity:
1400
nw2

NW2

NW2
Capacity:
1400
nw2

NW2

NW2
Capacity:
1400
nw2

NW3

NW3
Capacity:
5500
nw3

NW3

NW3
Capacity:
5500
nw3

NW3

NW3
Capacity:
5500
nw3

NW4

NW4
Capacity:
0
 For the ETYS we do not study all boundaries, specifically those where no significant changes in the FES generation and demand data have been identified in previous years

NW4

NW4
Capacity:
0
 For the ETYS we do not study all boundaries, specifically those where no significant changes in the FES generation and demand data have been identified in previous years

NW4

NW4
Capacity:
0
 For the ETYS we do not study all boundaries, specifically those where no significant changes in the FES generation and demand data have been identified in previous years

SC1

SC1
Capacity:
4871
sc1

SC1

SC1
Capacity:
4871
sc1

SC1

SC1
Capacity:
4871
sc1

SC1.5

SC1.5
Capacity:
5562
sc1.5

SC1.5

SC1.5
Capacity:
5562
sc1.5

SC1.5

SC1.5
Capacity:
5562
sc1.5

SC2

SC2
Capacity:
4000
sc2

SC2

SC2
Capacity:
4000
sc2

SC2

SC2
Capacity:
4000
sc2

SC3

SC3
Capacity:
7720
sc3

SC3

SC3
Capacity:
7720
sc3

SC3

SC3
Capacity:
7720
sc3

SW1

SW1
Capacity:
2900
sw1

SW1

SW1
Capacity:
2900
sw1

SW1

SW1
Capacity:
2900
sw1