In markets across Nigeria you will find "fairly used" or tokunbo solar panels. They are cheaper. Are they a good deal?
What you do not know
- How old is the panel?
- How much power has it lost?
- Was it dropped or cracked?
- Does it have hot spots?
You cannot see most of this.
Side by side
| New tier-one panel | Used (tokunbo) panel | |
|---|---|---|
| Price | Higher | Lower |
| Power | Full rated (positive tolerance) | Often lower than label |
| Hidden damage | No | Possible |
| Warranty | 25-year performance | Usually none |
| Size | 450W–600W+ | Often older, smaller panels |
Hidden problems
- Micro-cracks. Tiny cracks you cannot see. They cut power over time.
- Hot spots. Burnt patches that waste power and can damage the panel.
- Browning. The clear layer turns yellow or brown. Less light gets in.
- Water inside. Bubbles or fog under the glass.
Cost per watt matters
A used 250W panel at half price can still cost more per watt than a new 600W panel. And it takes more roof space.
When used panels can work
- You can test each panel in full sun.
- The price is very low.
- It is for a small, non-critical setup.
Our view
For a home system you want to last 25 years, buy new. See how to spot fake panels and solar panel prices.
