Apr 4, 2022

Rooftop PV to reduce cooling demand of uninsulated buildings

Posted by in category: energy

The research project took place during the heating period spanning November 2021 to April 2021 and the cooling period from May 2021 to October 2021. The PV system was designed to cover 4.9% of the roof surface area. The total installed power of the building was 480 kW.

Through their simulation, the scientists found that the shade effect of PV panels may reduce the building’s cooling demand by 10.87%, which means a lower power consumption of 136.6 kWh for the cooling months. “Conversely, PV panels increased the heating load in the winter by 3.8%, which means that the rise in heating loads in heating months was 175.3%,” they also explained. “A rooftop PV system provides a greater understanding of the heating, ventilation, and air conditioning (HVAC) energy demand variance in buildings which is critical in modern architecture.

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