Ameresco has completed a solar array and battery storage project at Southwest Wisconsin Technical College, the winner of the 2025 Aspen Prize for Community College Excellence.
The $1.6 million design-build project includes a 300-kW solar array and a 125-kW battery storage system, installed in an area behind the Knox Learning Center. The electricity produced by the solar array will be used exclusively for Building 400, one of the most populated buildings on campus during the summer. The system is expected to produce approximately 60% of the building’s electricity, saving the college approximately $30,000 per year in utility costs. In the event of an outage, the combination of the solar and battery energy storage system was designed to provide a resilient supply of energy to the student services building on campus.
In recent years, the college has upgraded from fluorescent to LED lighting in parking lots, labs and most classrooms, installed rooftop air handling units, energy-efficient boilers in two buildings, energy-efficient water heaters in four buildings, and occupancy light sensors in most buildings.
Southwest Tech contracted with Ameresco to develop a 10-year Comprehensive Energy Plan. The plan, which was fully completed by January 2024, outlines a path to achieve a 62% reduction in building energy use and a 100% reduction in greenhouse gas emissions over the next decade through four primary strategies: electrification of gas-fired equipment, lighting upgrades and controls, HVAC control strategies and solar installations.
“At Ameresco, we are committed to driving innovation and sustainability in every project we undertake,” said Lou Maltezos, President – Central & Western USA, Canada Regions at Ameresco. “This collaboration with Southwest Wisconsin Technical College is a shining example of how renewable energy solutions can be seamlessly integrated into educational institutions. By harnessing the power of solar energy and advanced battery storage, we are not only reducing the college’s carbon footprint but also setting a precedent for other institutions to follow. We are proud to support Southwest Wisconsin Technical College in their journey towards a greener and more energy-efficient future.”
“The new solar and battery project represents a significant step forward for our sustainability initiatives,” said Josh Bedward, Director of Facilities Manager and Master Electrician at Southwest Tech. “The project cuts our electric expenses by about 10%, while ensuring continuous backup power supply to our administrative building. The environmentally friendly project enhances our campus infrastructure while building our capacity to meet upcoming challenges.”
As part of its commitment to sustainability and innovation, the college has plans to use the new solar array and battery energy storage system as educational tools to teach students and train apprentices. By integrating these renewable energy technologies into their curriculum, the college aims to provide hands-on learning experiences that will prepare students for careers in the growing field of sustainable energy. This initiative not only supports the college’s sustainability goals but also equips students with the practical skills and knowledge needed to thrive in the renewable energy sector.
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