PRACTICAL VALUES OF VARIOUS PARAMETERS FOR PV SYSTEM-DESIGN

In order to reasonably design a PV system, it is important to use appr opriate parameter values. Few papers, however, describe design paramet ers that are defined systematically. The authors have been entrusted b y the New Energy and Industrial Technology Development Organization (N EDO) with research and development of PV system evaluation since 1990 in order to establish optimum design and operation methods of various kinds of PV systems which are expected to be put into commercial use i n the future. In this research, which is based on the data obtained fr om test facilities which were constructed at Hamamatsu site, various d esign parameters were calculated and reported as primary values provis ionally estimated. This paper presents practical values of various par ameters for PV system design as a table, revised with design parameter values studied later on. In particular, cell temperature factor was s tudied in view of regional differences and module mounting. The author s will confirm reasonable design of PV system by using such various de sign parameter values.