MRMC Campus

Milwaukee Regional Medical Center

Investing in Reliability at Milwaukee Medical Campus

Milwaukee Regional Medical Center Thermal (MRMC Thermal) provides steam and chilled water for heating, cooling, and critical process load for the hospitals and other buildings on the Milwaukee Regional Medical Center (MRMC) campus. MRMC acquired the thermal system in 2017, and Ever-Green played a critical role in completing an overhaul of the thermal system infrastructure, improving service reliability and reducing costs.

Infrastructure Investments

With leadership from Ever-Green Energy, MRMC Thermal made additional infrastructure investments that improved the reliability of steam and chilled water service, which are critical to the operation of the hospitals and research facilities on campus.

A new plant was constructed to implement more energy-efficient natural gas operations, which will help moderate or reduce future energy costs and reduce greenhouse gas emissions, benefiting the medical center organizations and their patients.

Ever-Green’s Role

Ever-Green provides system operations, maintenance, and management including business development, construction oversight, plant commissioning, system start-up, and water management services.

About MRMC

The medical center is a consortium of six health care institutions. The campus is home to a Level 1 Adult Trauma Center at a nationally ranked academic medical center and a Level 1 Pediatric Trauma Center at Children’s Wisconsin. The medical center member organizations provide continuum of care rehabilitation services and offer new discoveries and cures to patients throughout the world. Milwaukee Regional Medical Center members share a common mission of excellence in patient care, medical education, life-science research, and community service.


  • 2015 – Ever-Green Energy was hired to form a new utility. Ever-Green will operate, maintain, and manage MRMC Thermal.
  • 2016 – Change of ownership, MRMC Thermal Services, Inc. purchased the Milwaukee County Power Plant from Wisconsin Energy Corporation.
  • 2016 – System recapitalization and conversion from coal to natural gas with construction of a new plant for the heating system, reducing greenhouse gas emissions by an estimated 50 percent.
  • 2016 – Legacy coal fired system demolition and distribution network upgrade commencement.
  • 2017 – Major demolition completion, new equipment installation commencement.
  • 2018 – New equipment startups including electrical switchgear, boilers, chillers, diesel generators, cooling towers, control system, building systems, and distribution piping.
  • 2019 – Ever-Green took responsibility for operation and maintenance of the potable water systems on the campus.
  • 2019 – Ever-Green began the development of a campus utility master plan.
  • 2021 – Recognized by the International District Energy Association as System of the Year.

Milwaukee Regional Medical Center Steam Service Data

Number of Buildings21
Building Area Served7.5 million sq ft
Current Billed DemandApproximately 200,000 pph
Heat Source Total5 boilers
Plant TypeSteam
Pipe Length2 miles
Supply Conditions135/15 psi
Fuel TypesGas/fuel oil
Reliability Rate99.994% (High Pressure Steam) 100% (Low Pressure Steam)

Milwaukee Regional Medical Center Chilled Water Service Data

Startup Year1975
Buildings served with district cooling21
Total Building Area Served7.5 million square feet
Chilled Water SourcesCentrifugal
Plant TypeChilled Water
Pipe Length2 miles
Supply Temperature38 degrees F
Return Temperature54 degrees F
Fuel TypesElectric/steam
Reliability Rate100%