Solar Warranty Explained: Panels, Inverter, Battery and Workmanship

What each solar warranty covers in Nigeria: 25-year panel performance, inverter and battery product warranties, and the installer's workmanship warranty. How to claim.

By LumaGrid Solar, Port Harcourt·5 min read·
Installer fixing a solar panel on a roof
Photo: Bill Mead on Unsplash

"Does it have warranty?" Yes, but there is more than one. Here is what each covers.

The four warranties

WarrantyCoversTypical length
Panel productDefects in the panelOften 10–12 years
Panel performancePower output over timeOften 25 years
InverterInverter faultsVaries by brand
BatteryBattery faults and capacity5+ years for good lithium
WorkmanshipThe installationLumaGrid: 2 years

LumaGrid's trust bar says 10-year panel performance warranty on what we install. Brands often give longer performance cover, as stated on their datasheets.

Workmanship is the one people forget

If a cable comes loose, the roof leaks, or a breaker was wrong, that is workmanship. It is the installer's job to fix it.

What voids warranties

  • Floods or water damage
  • Someone else opening or rewiring the system
  • Wrong settings changed by the user
  • Physical damage

Keep these safe

  1. Invoice
  2. Serial numbers (photos of labels)
  3. Installation photos
  4. Warranty documents

How to claim with us

WhatsApp us with photos and the inverter screen. We respond within 24 hours.

Read lithium battery warranty questions.

Frequently asked questions

What is a workmanship warranty?

The installer's promise to fix faults caused by the installation itself, like loose connections, leaks or wiring errors, for a set time.

What does a 25-year panel performance warranty mean?

The maker promises the panel will still produce at least a set percentage of its rated power after 25 years, often around 80% or more.

How do I make a warranty claim?

Contact your installer with photos, the inverter's error codes and your invoice. They check the fault and handle the claim with the manufacturer if needed.

Want a system sized for your home?

Tell us your state, area, building type and what you want to power. We reply on WhatsApp with a recommendation and book a free site assessment anywhere in Rivers, Delta or Bayelsa.

Tell us your area, building type and what you want to power. We reply on WhatsApp with a recommendation and book a free site assessment.

Call +234 705 949 7792