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U.S. Department of Energy
Office of Scientific and Technical Information

Environmental data for sites in the national solar data network

Technical Report ·
DOI:https://doi.org/10.2172/5228088· OSTI ID:5228088
The Department of Energy's National Solar Data Program established solar energy systems in residential and commercial buildings across the United States. These solar sites are linked to Vitro Laboratories Division's computer in the National Solar Data Network (NSDN). Vitro collects and analyzes data from this network to determine the thermal performance of each of the solar systems. The network consists of: (1) sensors which measure key performance parameters at a selected site; (2) a Site Data Acquisition Subsystem (SDAS); (3) telephone transmission circuits; and (4) a Central Data Processing System (CDPS). For the majority of parameters, raw data is collected approximately every five minutes. Solar insolation and certain other parameters, which are subject to rapid variance, are sampled every 32 seconds. Environmental information collected at the sites for the reporting month are presented. The environmental data for the NSDN are presented in the form of tables for each solar site. The solar sites are grouped into 12 zones, each of which consists of several adjacent states (as shown in Figure 1). The solar energy sites are in alphabetical sequence within each zone. The tables provide available meteorological data for reporting sites in the NSDN as follows: (1) the insolation table presents the total, diffuse, direct, maximum, and extra-terrestrial radiation for the solar site. It also shows the ratio of total extra-terrestrial radiation, as a percent. (2) The temperature table gives the average, daytime, nighttime, maximum, minimum and inlet-water temperatures for the solar site. Additional tables are presented for some of the sites, supplying either wind or relative humidity data or both. (WHK)
Research Organization:
Automation Industries, Inc., Silver Spring, MD (USA). Vitro Labs. Div.
DOE Contract Number:
AC01-79CS30027
OSTI ID:
5228088
Report Number(s):
SOLAR/0010-80/07
Country of Publication:
United States
Language:
English