Why Fake Solar Panels Are a Problem in Pakistan
Because panels look nearly identical from the outside, some sellers relabel lower-tier or recycled cells as premium brands, or under-rate panels to seem like a bargain. A fake or downgraded panel might produce 20-30% less power than advertised, throwing off your entire system's sizing and return on investment.
Checks to Do Before You Buy
- Buy only from authorized dealers or well-reviewed sellers who can provide proper invoices and warranty documentation.
- Check the panel's label for a matching brand name, model number, and manufacturing date that lines up with official datasheets.
- Verify frame quality: genuine panels have consistent anodized aluminum frames, even cell spacing, and no visible bubbling or discoloration under the glass.
- Ask for the panel's serial number and, where possible, verify it directly with the manufacturer or authorized distributor.
Testing After Installation
- Use a solar irradiance meter or basic multimeter to check open-circuit voltage (Voc) against the panel's datasheet rating.
- Compare actual output on a clear day to the panel's rated wattage; a healthy panel should perform close to its rating under good sun, accounting for temperature losses.
- Watch for unusually fast degradation in output over the first year, which can indicate low-quality cells.
