---
title: "How Long Do Solar Panels Last? | 25-30 Year Lifespan Guide"
description: "Solar panels last 25-25 years with minimal maintenance. Learn about degradation rates, inverter lifespan, and what maintenance is needed."
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# How Long Do Solar Panels Last?

Solar panels typically last 25-25 years with minimal maintenance. Here's what to expect over their lifetime.

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## Panel Lifespan

Most solar panels carry a 30-year warranty guaranteeing at least 80% of original output. In practice, panels continue producing electricity well beyond 25 years — the degradation rate is just 0.3-0.5% per year.

## Inverter and Battery Lifespan

String inverters typically last 10-15 years and may need replacing once during your panels' lifetime (£800-£1,200). Hybrid inverters with battery integration last 10-12 years. Batteries carry 10-year warranties with 5,000-6,000 cycle ratings.

## Maintenance Requirements

Solar panels need very little maintenance. An annual visual check, occasional rain-wash (or manual clean every 2-3 years), and monitoring system output is usually sufficient. No moving parts means very little can go wrong.

## Related Guides & Resources

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