The stages seem to work in 4 day cycles:
Stage 1-4 per 4 days:
| Stage | 0 hour sessions | 2.5 hour sessions | | Days with
3x0h
0x2.5h | Days with
2x0h
1x2.5h | Days with
1x0h
2x2.5h | Days with
0x0h
3x2.5h |
| 1 | 9 | 3 | | 1 | 3 | | |
| 2 | 6 | 6 | | | 2 | 2 | |
| 3 | 3 | 9 | | | | 3 | 1 |
| 4 | 0 | 12 | | | | | 4 |
Stages 5-8 mirrors stages 1-4, except 0h->2.5h and 2.5h->4.5h. Per 4 days:-
| Stage | 2.5 hour sessions | 4.5 hour sessions | | Days with
3x2.5h
0x4.5h | Days with
2x2.5h
1x4.5h | Days with
1x2.5h
2x4.5h | Days with
0x2.5h
3x4.5h |
| 5 | 9 | 3 | | 1 | 3 | | |
| 6 | 6 | 6 | | | 2 | 2 | |
| 7 | 3 | 9 | | | | 3 | 1 |
| 8 | 0 | 12 | | | | | 4 |
From the above, one can also guess that stages 9-12 will mirror 5-8 with sessions extended by another 2 hours, and stages 13-16 will mirror 5-8 with sessions extended by 4 hours (or put another way, sessions will start overlapping meaning no power for 14 to 24 hours+ at a time)