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What started out as a complete off-grid system four years ago to keep the fridge going, (no,not just for the beer ... obviously some wine too), ensure popular soapies were uninterrupted and to provide some essential light, at least for the boys to help hit the right target when visiting the "you know what", is today a well balanced ESS even if with a highly unreliable ESKOM grid connection as shown below.The DC coupled PV during the day helps power the loads and keeps the battery charged for esp …