Hi 'Sam, I must say yiu've gotten a full fledged educative material on here. I enjoyed understanding all the process as you highlighted.

I remember once visiting a bank branch at the Eleme Pretrochemical station for a proposed renovation work. We were told during the site reconnaissance that they do not have any alternative power source apart from the national grid (which obviously is being supplied by the petrochemical company). It was really strange to find a bank branch with no generator nor an inverter(can't remember if they even had a UPS).

Steem on Sam

@dorth