(prices listed in cents/kwh)
This information is provided by the Department of Public Utilities
| 2003 | 2004 | ||||
| Jan. - Apr. | May - Aug | Sept - Dec | Jan - Sept | Oct - Dec | |
| (1) Boston Edison Co. | 4.95 | 5.852 | 4.95 | 5.1 | 6.323 |
| (2) Cambridge Electric Light Co. | 4.7 | 5.602 | 6.124 | 6.323 | |
| (3) Commonwealth Electric Co. | 4.7 | 5.602 | 6.124 | 6.323 | |
| (4) Fitchburg Gas and Electric Co. | 5.36 | 5.602 | 6.124 | 6.323 | |
| (5) Massachusetts Electric Co. | 4.7 | 5.602 | 6.124 | 6.802 | |
| (6) Western Massachusetts Electric | 4.938 | 5.607 | |||
This information is provided by the Department of Public Utilities