Sunlight probability data for select cities in the United States
Sunlight probability data are useful in the design and analysis of daylighting systems since many systems perform differently under clear or overcast sky conditions. Sunlight probability is measured at many of the weather stations in the Typical Meteorological Year (TMY) and Estimated Typical Meteorological Year (ETMY) networks. The weather service makes this data available in the form of monthly and annual average percent sun. However, for many design situations, hourly sunlight probability data rather than monthly and annual averages are needed. This report presents a model that was developed to establish the computed probability of having sunlight in a given hour or for a specific duration of time for select cities in the United States.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 6981030
- Report Number(s):
- SERI/TR-254-1687; ON: DE84000006
- Country of Publication:
- United States
- Language:
- English
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