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ECN publication
Lifetime testing of solar home systems
Published by: Publication date:
ECN Energy in the Built Environment 1-10-2002
ECN report number: Document type:
ECN-RX--02-046 Conference Paper
Number of pages: Full text:
4 Download PDF  

Presented at: PV in Europe - From PV Technology to Energy Solutions Conference and Exhibition, Rome, Italy, 7-11 oktober 2002.

A method to evaluate lifetime aspects of solar home systems (SHSs) ispresented together with first test results. The principal factors that cause premature failure of lead-acid batteries have been studied for 6 different SHS configurations and 2 solar lanterns under simulated field conditions. After a 6-month testing period serious battery degradation was observed. Further, applying a constant voltage charge regulator instead of a classical 2-point regulator showed an increased utilisation of the energy from the module.

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