Electricity back-up system

We were booked into this guesthouse for an overnight stay. The rooms are clean and well furnished. My only issue was the non-existent communication whenever there were power outages. We all know the situation with load shedding, I could not understand why the place did not have an electricity back-up system for the rooms. We were in the dark the evening before check out as well as the morning of check out. The bath water was cold from the time we arrived until departure. We resorted to using the basins to wash up. Please look into this as the electricity back-up system seemed to cater for the bar and restaurant only. We would like to stay at the guest house again, but will not until these issues are ironed out.