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Weather
#
A weather object contains data about environmental conditions at a specific location and is constructed using an EPW file. As the EPW file is parsed it is used to construct a location, a sun rig and sky coefficients for each hour of the year. All of which can be accessed from the weather object. The weather object is then subsequently used to create illuminance and irradiance distributions for the hemisphere of a sky series or sky instance.
EPW#
The EnergyPlus Weather File (EPW) contains data measured at a weather station, normally at an hourly interval. They can be obtained from numerous third party sources and should ideally be located closely to the location of the project being analysed.