Can a dry cooler improve photovoltaic performance?

Photovoltaic modules usually lose electrical efficiency as their temperature rises. A dry cooler helps remove excess heat from the liquid loop, which can lower the operating temperature of the panels or the heat transfer circuit connected to them. When the panels run cooler, their electrical output is usually more stable and slightly higher than it would be at higher temperatures.

The effect depends on the system design. A dry cooler does not increase solar radiation or change the panel itself, but it helps control overheating. In a liquid-cooled PVT system, that can improve overall performance by protecting the photovoltaic side from excessive temperature while also keeping the thermal loop within a workable range.

The biggest benefit is usually seen when:

• solar radiation is high,

• ambient temperature is high,

• thermal demand is low,

• or the system would otherwise accumulate too much heat.

So the dry cooler is not boosting performance directly like a better solar cell would, but it can improve photovoltaic operating conditions by keeping temperatures under better control.