Xiaolei Yuan
Created 6.5.2026
Updated 7.5.2026

What are you researching, and why is it important for the built environment and well-being?

My research focuses on building energy systems in cold climates, covering both individual buildings and energy systems at the community level. I work on building energy performance and prediction, as well as smart control strategies for improving system efficiency and flexibility. 

A key idea in my work is that buildings should no longer be seen only as energy consumers, but also as active energy providers. With technologies such as renewable energy integration, energy storage, and even electric vehicles, buildings can interact dynamically with the energy system. 

The goal is to develop low-carbon, energy-efficient, and flexible smart energy buildings and communities. This is particularly important in Nordic regions, where heating demand is high and the transition toward sustainable energy systems is accelerating. 

What do you find particularly interesting about LUT’s new research and education in civil engineering?

LUT has a strong ambition to integrate sustainability, energy systems, and digitalisation into civil engineering. I see a clear opportunity to move beyond traditional design toward system-level innovation where buildings will act as active nodes in energy networks in the future. This system-level perspective aligns very well with my research, especially in developing smart, flexible, and low-carbon energy communities. 

I also enjoy working at the interface between academia and industry, where ideas can move from theory to implementation and make a tangible difference in energy efficiency and sustainability. 

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What challenges do you see in the construction industry, and how do you solve them in your work?

One key challenge is balancing multiple objectives, including energy efficiency, economic feasibility, environmental impact, and system flexibility. This is often described as a multi-dimensional problem, sometimes referred to as 3E or 4E, where energy, economy, environment, and engineering performance must all be considered together. 

In my research, I address this by combining life cycle cost (LCC) and life cycle assessment (LCA) with advanced modelling and data-driven methods. I also explore how emerging technologies, such as building-to-EV interaction and integrated energy systems, can improve overall system performance. 

This approach helps ensure that solutions are not only technically effective but also economically viable and environmentally sustainable.

What is the best thing about your job?

The best part of my job is seeing how research can create real impact. I have the opportunity to work closely with industry partners, especially in Finland, as well as collaborate with universities across Europe, Asia, and beyond. This allows me to translate research into practical solutions, from scientific publications to patented technologies and real-world applications. 

I also value long-term collaboration and contributing to the academic community, which is why I see Finland as an important place for my future development. 

What is something that people may not know about you?

In addition to my research, I am actively involved in the international academic community. I will serve as vice chair and scientific committee chair for major conferences, including CLIMA 2028 and the Cold Climate HVAC Conference 2027. 

Outside of work, I enjoy playing basketball and running, which helps me stay energetic and maintain a good balance between research and daily life.

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