What is Solar Panel Warranty?
Guarantees covering defects (product warranty, 12–25 years) and minimum output levels (performance warranty, 25–30 years).
Quick Answer
When choosing a solar installer in Ireland, check all three warranty types: panel product warranty (12–25 years), panel performance warranty (25–30 years), and installer workmanship warranty (5–10 years). Leading brands in Ireland offer 25-year product warranties (e.g., Hyundai, REC). Ensure your installer will still be in business to honour their warranty — established SEAI-registered companies are generally the safest choice.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Solar Panel Warranty Explained
Solar panel warranties come in two types: a product warranty covering manufacturing defects and materials (typically 12–25 years), and a performance warranty guaranteeing minimum power output over time (typically 25–30 years, guaranteeing 80–84% of original output). Inverter warranties are separate, usually 10–12 years for string inverters and 20–25 years for microinverters. Workmanship warranties from the installer typically cover the installation work for 5–10 years.
How Does Solar Panel Warranty Work in Ireland?
When choosing a solar installer in Ireland, check all three warranty types: panel product warranty (12–25 years), panel performance warranty (25–30 years), and installer workmanship warranty (5–10 years). Leading brands in Ireland offer 25-year product warranties (e.g., Hyundai, REC). Ensure your installer will still be in business to honour their warranty — established SEAI-registered companies are generally the safest choice.
Frequently Asked Questions
What happens if my panels fail under warranty?
Contact the panel manufacturer or your installer. Product warranty covers replacement of defective panels. Performance warranty covers panels that degrade faster than guaranteed.
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John Rooney is the founder of Solar Info and has been covering the Irish solar energy market since 2023. He fact-checks all content against official SEAI data and maintains relationships with SEAI-registered installers across Ireland.