In January-February 2004 9 coolers were shipped from Unicef in Copenhagen (3 to Senegal, 3 to Indonesia and 3 to Cuba) and they are expected to reach their destinations in March 2004 whereafter they will be installed and the field test will begin. One additional cooler has been installed at DTI for field test, which began in February 2004. Each unit is packed with 3×60 W solar PV panels and has data loggers integrated for evaluation of the operating conditions.

For the unit installed at DTI there are now sufficient data to conclude that the operation under real solar conditions ensures an inside temperature within the desired range (at an ambient temperature of 20°C). There have been sunny and less sunny periods, but from the figures below it can be seen that the temperature becomes rather stable after a period of freeze-in.

Fig.4 Decrease of ice pack temperature after installation. After 10 days the storage is totally charged (no free water left).