What I meant by 'size' was the supply to the transformer. I don't know what supply choice there is here on the high voltage side here but I guess depending on the needs of the development there is a choice is kV supply in to match the transformer and on that basis I assume there is a different charge for different high voltage supplies.but other than that I do not know about the "size" of the supply affecting the price / unit
We both agree that whatever the technicalities of the setup in this development 'musungu' will be paying more for his electricity than he would direct from PEA, even if the development does not make a profit on their collection of 'their' electricity supply fees.