A systematic investigation has been made on annual accumulated generated PV
power from different solar arrays consisting of three kinds of silicon-bas
ed solar cells. To clarify seasonal output power variations with temperatur
e in c-Si and a-Si cells might be an important issue for the operations of
PV system. It has been shown from the results that electric output power fr
om a-Si array in summer is 20% larger than that from c-Si. On the other han
d, in winter, this scene should be reverted. However, output power from c-S
i array is only 5% larger than that from a-Si. The analyzed data also shows
that annual accumulated electric power generated from a-Si array correspon
ds to 90% of its nominal efficiency in the year. While in case of c-Si arra
y, this ratio is about 84%. (C) 2001 Elsevier Science B.V. All rights reser
ved.