Here's what's shocking: A single square meter of solar panel can generate anywhere from 150 to 250 watts under ideal conditions. But "ideal" rarely exists in real life.
Spring and autumn offer a balanced solar output — not as high as summer, but often more efficient in terms of panel performance. Cooler temperatures mean less heat loss in the system, and sunny days can still be frequent.
Monocrystalline cells are more efficient and generate more electricity, while polycrystalline cells tend to be more affordable—they are no longer typically used in home solar panels. Researchers are constantly working to improve solar cell technology.
When the sun is lower in the sky, solar panels need a greater tilt angle to receive direct sunlight. The goal is to catch as much direct sunlight as possible throughout the day and across seasons.
For that reason, it's most likely that a problem is caused by a defect in system components other than the panels, such as the solar inverter, charge controller, wiring or batteries.