Page 101 - A Comprehensive Guide to Solar Energy Systems
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96 A COMPrEHENSIVE GUIdE TO SOlAr ENErGy SySTEMS
FIGURE 5.10 (Top) The estimated cost of an off-grid DC PV system in Durban, South Africa, consisting of a 600 Wp
silicon module, a 12 V, 250 Ah lead-acid battery (and scheduled replacement batteries every 4 years), a charge
controller, and cables (top). (Bottom) Breakdown of the estimated cost of the system (€) over 20 years; batteries are the
dominant factor in the overall cost.[37].
