This client in Constantia wanted to be as independent as possible from Eskom Power and at the same time reduce their electricity cost. This system achieves both. Cheaper electricity and more reliable supply. Eskom is the back up and will only be used for short periods of time to top up the batteries. This system will be able to withstand long periods of load shedding. In summer for weeks and in winter for a day or 2. The only area of the house that is not supplied by this system is the laundry area and the oven / stove.