I am working on a battery energy storage project and we need to provide temporary power to battery container's HVAC. Eventually, permanent power will be from a substation through a 34.5kV-400V/230V transformer but it won't be ready by the time batteries arrive on site. Only thing that will be on site will be distribution panelboards for LV feed in the battery container's cooling unit. I am trying to figure out a way for temporary power feed but 230V requirement is a little confusing and challenging to find a generator and transformer. Any suggestions where and what equipment I can rent to provide 230V temporary power? Total requirement of all the battery containers is about 100 KVA.