Besides by land investment and building and installation purchase cost, total investment value is also influenced
by labor cost, the requirement of labor cost to do the daily system operation will affect in the increasing of working
capital that further more imply in the increase in total investment value. Due to this reason, the total investment
values are different for each case studied. The highest investment cost is the investment cost for land due to the high
land price and working capital do not influence total investment value significantly due to the short period of
working capital rotation. The arrangement of the farmers condition with investment value from the highest to the
lowest is Case A, Case C, Case B, and Case D.