Real energy measurement of two equal solar panels (fixed and motorized)
Two equal solar panels were exposed to the real sun and conversed electrical power was measured.

Test conditions:
Solar panels (both):      50W (producer spec. at AM 1.5)
Date:                            July 2005
Time:                            4:00 to 20:00 (sun time)
Geo. Latitude:               46° N
Weather conditions:     sunny, but not totally clear

Results:
Average energy of fixed:          209,2Wh
Average energy of motorized:  338,5Wh
Note: sum of motor energy consumption through all day is 0.0832Wh or 0.025% of all collected energy.

Efficiency of motorized panel: 161,8%