Clean Energy Works: On Building Performance
Clean Energy Works is RENEW Wisconsin’s initiative to get into the field with our business members and learn directly from those doing the work each day. By shadowing installers, technicians, and staff across the clean energy industry, we gain a deeper understanding of what goes into the work. These experiences directly inform how RENEW supports and advocates for the people and companies driving clean energy forward.
When you step into a school, hospital, or office building, you probably notice if it feels bright, fresh, and comfortable. What you do not see are the systems behind the walls and above the ceilings that make that comfort possible. Mike Barnett, a mechanical engineer with a passion for the environment, has built his career making sure those systems not only function well but also contribute to a healthier future. At HGA, a national architecture and engineering firm with a strong presence in Wisconsin, Mike works within the Building Performance group to ensure that buildings are efficient, sustainable, and designed for people to thrive.
Meet the Crew
For Mike, the path into this work started with a question: how do you connect technical expertise with sustainability? With a degree in mechanical engineering and a minor in environmental studies, he had both the technical training and environmental awareness, but his first job out of college didn’t provide the connection he wanted.
“I moved back to Madison and found a position that combined my interests for the technical and sustainable, working with building owners to make their buildings more efficient,” Mike said.
His return home marked the beginning of a career that perfectly balances curiosity with impact. “Building systems are more than just the sum of their parts. Systems need to work together in an efficient manner,” Mike explained.
He thrives on the challenge of integrating heating, cooling, lighting, and airflow so that a building feels effortless to those inside it. And while the technology is complex, the work is rooted in relationships. Those partnerships, built one project at a time, are what make his work meaningful.
“I have really enjoyed collaborating with tradespeople over the years on solving complicated problems related to HVAC controls in commercial buildings,” he said.
About the Technology
HGA’s Building Performance group has a simple but essential mission: To make sure the systems perform the way they were intended. A central part of this work is commissioning. Commissioning is one of the last steps in the building process. It involves testing a building’s systems once construction is complete to confirm everything works the way it was designed. That can involve checking HVAC airflow, verifying that lighting and controls respond properly, or ensuring the building envelope is sealed against leaks.
Mike describes it as “not a very well-known aspect of the construction process, but I have come to appreciate how important commissioning is to realizing the original sustainability and energy goals of a project.”
On one hospital project, Mike explained that his team discovered a hidden air leak between an operating room and a main clinic space. If left unresolved, the leak could have spread contaminated air, threatening patient safety and sanitation. Because it was caught during commissioning, the issue was fixed before the hospital opened. For Mike, moments like this prove why commissioning is essential: it prevents costly problems, protects health, and ensures buildings truly deliver on their sustainability and energy goals.
Why It Matters
Mike knows that sustainable design is only successful if it is embraced by leadership. It’s his opinion that sustainability has to be a priority of the leaders of that organization. That is why he always frames the benefits in ways that resonate. In schools, it means healthier classrooms and lower operating costs. In hospitals, it is about better patient care and stronger staff retention.
One standout project for Mike is Forest Edge Elementary, the state’s first all-electric net-zero school. The school not only reflects the district’s long-standing environmental values but also delivers lasting savings.
“Oregon School District has always been a strong advocate for environmental sustainability, and Forest Edge continued to be a concrete example of the district living its values and doing so in a way that provided long-term financial savings to the district,” Mike said. “I’d love to turn back time and attend elementary school at Forest Edge!”
For Mike, these projects are about more than technical achievement. “At the end of the day, we do this so people can thrive in better spaces,” he said.
Looking Ahead
As buildings become more efficient in their daily operation, Mike sees attention shifting toward the carbon footprint of the materials themselves. HGA is already at the forefront, designing with mass timber and committing to SE 2050, a national pledge to achieve net zero embodied carbon in structural systems by 2050.
“As buildings continue to operate more efficiently and utilize clean energy as their fuel, embodied carbon will receive more attention as building owners continue to find ways to lower their carbon footprint,” Mike said.
Just as important is Mike’s desire to inspire others to step into this work. They could do this by getting involved in their local community. Mike has found that there are many great opportunities to get exposed to sustainability in buildings. His local high school’s green team, which spearheaded the installation of solar panels, is one example. For him, it is a reminder that leadership can come from anywhere.
“Even if they do not have aspirations to work directly in the field of architecture, there are opportunities to lead on sustainability,” Mike said. “We all have influence over the collective decisions we make at the organizations we work at and the communities we live.”
If you are part of this work and would be willing to share your story, I would love to join you for a day. Feel free to reach out to me at ben@renewwisconsin.org.
