In the heart of Romania, a groundbreaking study is making waves in the construction and energy sectors, offering a promising path toward building decarbonization. Adriana Tokar, a researcher from the Faculty of Civil Engineering at the University Politehnica Timisoara, has led an experimental study that could redefine how we approach heating and cooling systems in buildings.
The research, published in the journal *Buildings* (translated from Romanian), focuses on harnessing the thermal potential of surface waters, specifically the Bega channel, to create a sustainable hybrid system for heating and cooling. This innovative approach combines a water-to-water heat pump with photovoltaic (PV) panels, aiming to minimize dependence on conventional fuels and reduce pollutant emissions.
“One of the important stages of energy efficiency measures for buildings is the optimal choice of heating and cooling systems, as well as that of heat/cold production sources,” Tokar explains. Her study demonstrates that by integrating renewable energy sources like water-to-water heat pumps and PV systems, buildings can achieve significant energy independence and reduce their carbon footprint.
The hybrid system analyzed in the study operated over a period from November 2024 to September 2025, achieving an impressive energy independence of approximately 90.7%. Additionally, the system resulted in a reduction of CO₂ emissions by 4.17 tons per year. These findings highlight the potential of such systems to make a substantial impact on the energy sector.
The commercial implications of this research are vast. As buildings account for a significant portion of global energy consumption, the adoption of similar hybrid systems could lead to a paradigm shift in the energy sector. By reducing dependence on conventional fuels, buildings can not only lower their operational costs but also contribute to a more sustainable future.
“This study shows that it is possible to achieve high levels of energy independence and reduce emissions through innovative heating and cooling systems,” Tokar notes. “The integration of renewable energy sources is key to achieving these goals.”
The research by Tokar and her team opens up new avenues for exploration in the field of building decarbonization. As the world continues to grapple with the challenges of climate change, such studies provide hope and a roadmap for a more sustainable future. The findings published in *Buildings* serve as a testament to the power of innovation and the potential for transformative change in the energy sector.