Read about the engineering being Hennepin County’s net zero-capable Public Safety Services Headquarters
Read about the engineering being Hennepin County’s net zero-capable Public Safety Services Headquarters
Recent Perspectives
The new Hennepin County Sheriff's Office Public Safety Services Headquarters in Plymouth, MN, was designed with a clear ambition: create a facility that operates around the clock, serves the community reliably, and is positioned to achieve net zero energy.
The 100,044 SF building pairs groundwater geothermal wells with six-pipe heat recovery chillers with chilled beams, energy recovery ventilation, rainwater reuse, a green roof, and an approximately 860 kW bi-facial solar array. Together, these strategies are projected to produce more energy than required for the building’s annual use.
The facility opened in April 2025 and earned a Minnesota ASHRAE Technology Award, demonstrating that even complex, 24/7 public safety buildings can be truly ready for net zero.
LEO A DALY Mechanical Engineering Lead Mark Bradby wrote about the mechanical elements that came together to make this building net zero ready. Read about it in the most recent issue of HPAC Engineering: Constant Operation, Still Net Zero Ready.
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