In case of emergency or if you have a power cut, you should check if your neighbours have electricity and then call your local electricity distribution company. Check the supply number on your electricity bill, the two numbers on the bottom row of the left hand side should tell you which region you are in:
| 10 | Eastern, EDF Distribution: | 0800 783 8838 |
| 11 | East Midlands, Central Networks: | 0800 056 8090 |
| 12 | London, EDF Distribution: | 0800 028 0247 |
| 13 | Manweb, ScottishPower: | 0845 272 7999 |
| 14 | Midlands, Central Networks: | 0800 328 1111 |
| 15 | Northern Electric, NEDL: | 0800 668 877 |
| 16 | Norweb, United Utilities: | 0800 195 4141 |
| 17 | Scottish Power, ScottishPower: | 0845 272 7999 |
| 18 | Scottish Hydro-Electric, SSE: | 0800 300 999 |
| 19 | Seeboard, EDF Distribution: | 0800 783 8866 |
| 20 | Southern Electric, SSE: | 08457 708 090 |
| 21 | South Wales, Western Power Distribution: | 0800 052 0400 |
| 22 | South West, Western Power Distribution: | 0800 365 900 |
| 23 | Yorkshire Electricity, YEDL: | 0800 375 675 |