jammyc Posted May 6, 2022 Share Posted May 6, 2022 Hi, I am comparing a grid connected system feeding an existing load with zero export to one with an additional small storage, and am getting an unrealistic increase in ESolar in the latter. For the solar-only option, the scheme is defined with a self-consumption defined from a CSV and scaled. A 1kW grid limit is applied (for some reason this cannot be set to zero), specified in active power (the system runs at 0.95PF) at the injection point. For the storage option, the strategy is set to self-consumption, with the same scaled CSV. Allow to export to the grid is unchecked. I have to deselect the grid limit in Energy Management for the simulation to work. All other parameters are the same. When I run them, the annual ESolar with storage seems to be far too high given the storage capacity relative to the array. Looking at the hourly figures, for some reason the array stops generating with losses shunting to IL_PMax at certain times (even though it's below the inverter rated capacity) for the non-BESS but in the storage scenario it continues to generate. Any ideas what's going on? Link to comment Share on other sites More sharing options...
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