Solar street light power calculator for Melbourne

Our calculator uses hourly typical meteorological year (TMY) data from NREL.

Data from TMY is for a 1 year period. The collection of this data is over many years.

About this calculator

This calculator is for solar street lights using a lithium battery. It is important to keep the charge of the battery high to extend the life of the battery.

Location: Melbourne, Vic (using solar data from Tullamarine Melbourne, Australia)
Lithium LiFePO4 battery
Solar panel tilted 52° and facing North

Solar light specifications

10w LED output
80w solar panel
386wh lithium battery

This calculator shows the performance of

Other lights can be modeled as the calculator accepts different parameters.

Performance

If the lights turn on at sunset the system has an average of 68.19% battery remaining at dawn.
43.30% is the minimum battery charge at dawn (2 May)
It is important to get a large sized solar panel to charge the battery quickly during winter in Melbourne

Weather predictions

Past weather performance is not an indicator of future weather patterns.
Yet, this is real historic weather data and, it is a good starting point.

This calculator is editable.

██ coloured cells are editable