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Development of sizing nomograms for stand-alone photovoltaic/storage systems

Journal Article · · Solar Energy; (USA)
 [1]
  1. Sandia National Laboratories, New Mexico (USA)
This paper describes the development of a simplified technique for sizing stand-alone photovoltaic/storage systems. The sizing criterion is the long-term loss-of-load probability which is the fraction of the total energy demand that the photovoltaic system will not be able satisfy over a 23-year period. The technique was derived using 23 years of hourly insolation data from 20 US weather stations. These data were used to develop correlations between the variability in insolation and average monthly horizontal insolation. The correlations were then used to generate sizing nomograms that give the array size as a function of average horizontal insolation and the storage capacity as a function of the long-term loss-of-load probability. The technique is valid for systems with a fixed tilt array, product of energy storage, and any hourly or daily demand profile provided that thee average monthly demand does not vary by more than {plus minus} 10% from month to month.
OSTI ID:
5061718
Journal Information:
Solar Energy; (USA), Journal Name: Solar Energy; (USA) Vol. 43:2; ISSN SRENA; ISSN 0038-092X
Country of Publication:
United States
Language:
English