Electrical Energy Progression in Holyoke
| amount | lights per Schuyler dynamos | total added that year | total | |
| Oct 1884 | 1 | 16 | 16 | 16 |
| 1885 | 4 | 25 | 100 | 116 |
| 1885 | 1 | 40 | 40 | 156 |
| 1886-7 | 8 | 30 | 240 | 396 |
| 1890 | 4 | 50 | 200 | 596 |
| 1894 | 1 | 50 | 50 | 646 |
| 1895 | 2 | 50 | 100 | 746 |
Electrical Energy Progression in Holyoke
| amount | lights per Schuyler dynamos | total added that year | total | |
| Oct 1884 | 1 | 16 | 16 | 16 |
| 1885 | 4 | 25 | 100 | 116 |
| 1885 | 1 | 40 | 40 | 156 |
| 1886-7 | 8 | 30 | 240 | 396 |
| 1890 | 4 | 50 | 200 | 596 |
| 1894 | 1 | 50 | 50 | 646 |
| 1895 | 2 | 50 | 100 | 746 |