WTF... Geez, that is crazy for JHB.
In the Cape is is only 2.5h, regardless of the stage... The shedding is just more often as the stage increases.
At least 2.5h is fine to keep your fridge cold... but 4.5h is super long. Wonder why they went for 4.5h?
The one place I prefer the 4.5 hrs as opposed to your 2hrs, is on stage 2. On stage 2 we're not on the schedule for more than 3 days running, followed by 2 or 3 days off schedule(lights on) then again either 2 or 3 days on schedule for no lights.
And there are 2 pvt hospitals and 2 govt(1 really a day hospital/clinic) ones(area group is rather large) on the same grid, so speculation that areas with hospitals don't get LS are wrong.
On mon I was on schedule for both stage 1 and 2.
Tues not on schedule
Wed not on schedule
Thurs stage 2 only
Fri both stage 1 and 2 on schedule.
Then next week all a bit more frequent.
Stage 1 every second day.
Stage 2 for 3 days running, 2 day break, then stage 2 again
But some days we're skipped coz we're on the day time schedule, and LS is only started later.