Design considerations and performance evaluation of the virginia integrated solar test arrays

J. W. Greene, Mohammad Akond

Research output: Contribution to journalJournal articlepeer-review

1 Scopus citations

Abstract

The Virginia Integrated Solar Test Arrays (VISTA) facility was built and is operated by Virginia Power. This 60 kWp (rated) AC photovoltaic facility consists of three separate 20 kWp AC subfields of different designs providing an opportunity to compare full systems of various tracking mechanisms and cell technologies at one site. Subfield A is comprised of polycrystalline modules arranged on two-axis tracking structures. Subfield B is comprised of polycrystalline modules arranged on fixed-axis structures. Subfield C has single crystal modules and it is fixed. The VISTA facility is a major east coast installation where commercial size PV arrays have been interconnected with the grid. This facility has been operational since December 1985. The on-site data collection is ongoing since June 1986. In addition to the design perspective and the system description, the summary of the on-site data collected between June 1986 and March 1987 are presented in this paper. It is observed that, over this period, the array and power conditioning unit (PCU) efficiencies match closely with design values, and the energy availability factor ranges from 34.80% to 39.99%.

Original languageEnglish
Pages (from-to)254-260
Number of pages7
JournalIEEE Transactions on Energy Conversion
Volume3
Issue number2
DOIs
StatePublished - Jun 1988
Externally publishedYes

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