See also more information on what substations are and the fields they produce
The last time figures on the numbers of substations were compiled routinely on a national basis was in 1989.
For 1989, for England and Wales:
| National Grid (400 and 275 kV) |
238 |
| Distribution system |
|
| >650 V (ie 132 kV, 33 kV etc) |
4,849 |
| Final distribution |
|
| pole mounted |
260,435 |
| ground mounted |
166,015 |
| total all voltages |
431,537 |
