It is necessary to measure the photocurrent of solar cells
for determining the price and the PV system design. Although
a solar simulator with xenon and halogen lamps measures
solar cells in doors, at present, one must resolve a
number of issues, including those related to unevenness, measurement
error at manufactory and cost. A solar simulator
with lamps is considerably accurate, however, cost and size
problems of the facility prevent us from using it anyplace.
Since the facility is so large, the application of Reference Cell
Method causes the measurement error by the several calibration.
Additionally, the assessment of the established PV
modules has not been measured.