Solar Photovoltaic Power Generation Warranty

On average these consist of:10-year limited product warranty (materials and labour).25-year limited power warranty (typically 10 years at 90% power output and 25 years at 80% power output).Workmanship and materials warranty of one or two years.Batteries (non-grid systems / hybrids) roughly 5-15 years.Inverter (s) warranty of between 5-10 years. [pdf]
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