Table 6 South Western England Consolidation of Electricity Supply before 1948
| Undertaking | Years in Operation | New Owner |
| Devonport Cb | 1902-1914 | Plymouth |
| Keynsham Co. | 1889-1921 | Bristol |
| Newton Abbot Co. | 1902-1922 | Torquay |
| Topsham Co. | 1904-1924 | Exeter |
| Budleigh Salterton Co. | 1904-1924 | East Devon Co. |
| Exmouth Co. | 1905-1930 | East Devon Co. |
| Sidmouth Ud | 1923-1930 | East Devon Co. |
| Crediton Ud | 1927-1932 | Exe Valley Co. |
| Totnes Co. | 1904-1935 | Torquay |
| Frome Co. | 1904-1935 | Wessex Electricity1 |
| Callington Co. | 1925-1936 | Cornwall Electric Power Co.2 |
| Camborne Co. | 1902-1936 | Cornwall Electric Power Co. |
| East Cornwall Co. | 1930?-1936 | Cornwall Electric Power Co. |
| Illogan Co. | 1903-1936 | Cornwall Electric Power Co. |
| Launceston & District Co. | 1912-1936 | Cornwall Electric Power Co. |
| Liskeard Gas & Electric Co. | 1929-1936 | Cornwall Electric Power Co. |
| Newquay Co. | 1906-1936 | Cornwall Electric Power Co. |
| Penzance Co.. | 1911?-1936 | Cornwall Electric Power Co. |
| Redruth Co. | 1902-1936 | Cornwall Electric Power Co. |
| Truro Co. | 1926?-1936 | Cornwall Electric Power Co. |
| West Cornwall Co. | 1928?-1936 | Cornwall Electric Power Co. |
| Braunton E L & P Co.3 | 1909-1936 | Bideford Co. |
| Porlock & District Co.4 | 1911-1937 | Minehead Co. |
| Yeovil Co. | 1923-1937 | Wessex Electricity1 |
Notes: 1 Wessex Electricity Ltd became part of the Southern Electricity Board in 1948. 2 Details from E. Edmonds, “Electricity in Cornwall part 2”, Histelec Supplement S23 (2003). wpehs.org.uk 3 Braunton E L & P Co. was a Non-Statutory undertaking until 1929. 4 Porlock & District was a Non-Statutory undertaking until 1927.
