Phase One

Installation of two 3,500-ton chillers and two field erected 2-cell cooling towers (5,250 gpm of water each), domestic water filtration system, four 150-hp primary pumps, one 900-hp secondary pump and VFD, and three 300-hp condenser water pumps. In addition to rigging and setting the equipment, Green also provided all of the interconnecting piping ranging from 6” to 42” pipe, cooling tower support steel, and a service tunnel which connected the new plant services to the existing facility. Green was also responsible for the project controls, startup and commissioning.


Phase Two

Installation of two additional 3,500-ton chillers, cooling towers, domestic water filtration system, and associated pumps, piping, steel and controls. All mechanical and steel work was performed by Green Contracting.


Phase Three

Installation of one 3,500-ton chiller, primary chilled water pump, condenser water pump, secondary chilled water pump, electrical power systems, and the installation of new controls to expand the existing controls systems. Green performed the complete mechanical and structural package and subcontracted the electrical and controls work. This phase increased the total plant capacity to 17,500 tons.

Client: John Hopkins Hospital South Power Plant Expansion
Location: Baltimore, MD
Completed: 2004

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