Solar Panel Warranties: What You Need to Know

Investing in solar panels is a long-term decision, one that can deliver energy savings for decades. But like any major purchase, it’s important to understand the warranties that protect your investment. In Ireland, especially in cities like Dublin and Cork, solar panel warranties can vary depending on the manufacturer, installer, and the components of your system.

Here’s what you need to know before you sign on the dotted line.

1. Types of Solar Panel Warranties

When you buy a solar PV system, you’re generally getting two main types of warranties:

a) Product (or Equipment) Warranty

  • What it covers: Manufacturing defects, faulty materials, or workmanship issues.
  • Typical length: 10–15 years, though premium brands may offer up to 25 years.
  • Why it matters: Ensures your panels are free from defects that could cause early failure.

b) Performance (or Power Output) Warranty

  • What it covers: The panel’s ability to produce electricity over time.
  • Typical guarantee: 80–85% of original output after 25 years.
  • Why it matters: Solar panels naturally degrade, but this warranty ensures they’ll still produce a strong amount of power decades later.

2. Inverter Warranties

The inverter is the heart of your solar system, converting DC power from the panels into usable AC electricity.

  • Typical length: 5–12 years for standard inverters, extendable to 20 years for some brands.
  • Tip: Ask about upgrade options for a longer warranty. It can be worth it, as inverters usually need replacing before the panels do.

3. Workmanship Warranty

Offered by your installer, this covers the quality of the installation itself.

  • Typical length in Ireland: 2–5 years.
  • Covers: Roof penetrations, wiring, and any system-related issues due to installation errors.

4. What’s Not Covered

It’s just as important to know the exclusions. Most warranties do not cover:

5. Tips for Protecting Your Warranty

  • Choose a reputable SEAI-certified installer to ensure eligibility for grants and proper warranty registration.
  • Keep records of purchase, installation, and any maintenance work.
  • Register your products with the manufacturer right after installation.
  • Follow maintenance guidelines to avoid accidental voiding of coverage.

The WattCharger Advantage

At WattCharger, all our solar PV systems come with industry-leading warranties from trusted manufacturers. We handle warranty registration for you, and our SEAI-certified installers ensure your system is set up for decades of performance. Plus, we offer ongoing support. So if you ever need to claim, we’re here to help.

Ready to invest in solar with peace of mind?

Contact WattCharger today for your free consultation and learn more about our premium solar systems with robust warranties.

 

Blog Author: Rowan Egan