"most" of the facilities of telco has industrial UPS and back up power generators that can withstand power interuption for 12hr max. or even BAU but this is depending on the availibility of personnel around the base stations/tower who will constantly monitor the working condition of the facilities.
2 telcos have (contractor of Globe was one) sent proposals to us regarding their interest to build a cell tower. In both, they have provisions for back up power which ideally would be good for 8 hours.
I would think though that different cell sites would have different power requirements depending on their size of transceivers, demand for service, environment and location (grid or off grid).
Hi Gibo, yes the cellsites are provided with a backup power system that allows it to continue providing service for a certain period of time after a blackout occurs. however, if the black out lasts longer than the backup power system (usually up to 4 hours) then the base station equipment will not have enough power to continue operating. Still is areas where telcos are allowed by the local community to install silent generators then the cell site can continue to operate throughout the blackout. Can you let us know where exactly in Proj 2 you are located in ? thanks