Question-and-Answer Resource for the Building Energy Modeling Community
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I would start by comparing inputs with the ShopWithPVandBattery example file, which does fully charge each day.
Then I would add every available Electric Storage and Electric Load Center output variable and report them hourly or timestep and see what's happening in the model.
From a quick glance at your inputs, it seems the Design Storage Control Charge Power of 300 W may be too small? If I'm following correctly, the storage capacity is 500 Ah * 24 Modules * 2.32 V = 27.84 kWh. That means it would take 27.84kWh/300W = 92.8 hrs to fully charge. Try leaving the Design Storage Control Charge and Discharge Power fields blank as in the example file.
