Battery System User Manual for Panasonic LJ-SK84AGrid Tied PV System – User ManualVersion 1.0 © solarcity 2016 UM-1059-PV-1.044.2 System start-up procedure1. Turn ON the AC SOLAR SUPPLY MAIN SWITCH which is labelled and located in the switchboard.The inverters will take at least 60 seconds to reconnect to the grid following a shut-down or grid outage.5.0 INTRODUCTION5.1 How it worksThe grid-connected solar power system generates electricity directly from the sun’s energy for use in your home. It is used topower appliances, lights, the hot water cylinder and anything else that is drawing power at the time. The battery system willautomatically detect when the solar system is generating surplus electricity and begin to charge. If the system is fullycharged, and the supply from the solar system still exceeds your energy demand, electricity will be exported to the grid. Thisenergy is metered and is purchased by your electricity retailer at an agreed tariff.When the solar system is not generating enough to supply the load requirements of your home and the batteries arecharged, the battery system supplies electricity to your home. If your energy demand exceeds the battery system’s supplycapacity, or it is fully discharged, additional electricity is drawn from the grid.You will still purchase power from the grid, on a rainy day for example, when the solar array can’t supply enough energy tosupplement your household loads and the battery is already fully discharged. And vice versa; if the battery is fully chargedand the electricity production of the solar array exceeds the current household demand, clean energy will be exported to thegrid.