A major challenge of designing off-grid PV power systems is the seasonal imbalance between the power demand of the building and power supply of the PVs. A majority of the energy produced by the PVs occurs during the summer when the sun shines brighter and for longer periods of time. The standard PV system size does not produce enough energy in the winter days to power the building and charge the batteries for nighttime. However, increasing the number of solar panels generates more energy during the winter days. I wrote an algorithm to estimate how much more solar power is required to power the building and charge the batteries for nighttime use.
Link to the algorithm: https://github.com/OffGridEnergy/offgrid-solar-power-system
Post time: Jul-08-2017