Projects
EnLink has successfully completed geothermal projects throughout the U.S. in both the public and private sectors. EnLink has achieved significant cost savings and environmental benefits for its clients with superior GHP systems. The following outlines some select projects.
San Francisco City College (CA) is currently constructing a Joint Use Building that will be occupied by the City College and State University students. The building is the first phase of a multi-building construction project and will be approximately 110,000 sf and require a load of 200 tons of heating and cooling. Future buildings that will be constructed are a Performing Arts Center, Technical Laboratory, an additional Classroom Building, and a Bookstore. Enlink completed the installation of the GHP system which will service all 5 sites in May of 2009. The system consists of 400 boreholes at a depth of 400 feet, and will provide a total load of 650 tons.
American Canyon High School (CA) is newly constructed, and plans to open its doors in August of 2010. The school is CHPS certified, which is similar to LEED® certification but caters to educational buildings. Enlink installed the GHP system at this 260,000 sf campus in June of 2009. All but two of the buildings are connected to the campus's geoexchange technology. The system consists of 285 boreholes at a depth of 350 feet, and provides approximately 200 tons of heating and cooling. A cost analysis on the GHP system shows an annual savings of $130,000 when compared to the operation costs of Direct Expansion Cooling with Gas Heating.
In an effort to implement energy efficient technologies at their facilities, the Federal Government installed a geothermal heat pump system at the Mendota Federal Correction Facility (CA). The equipment was successfully installed while maintaining the buildings security rating. Enlink completed the installation of the GHP system in March of 2010. The facility consists of two medium security housing units and service buildings totaling 34,000 sf. The GHP system consists of 110 boreholes at a depth of 330 feet, and will provide 160 tons of heating and cooling.
Northwest Technical and Career Academy (NV) was constructed in 2007. The campus is 220,000 sf, and accommodates over 2000 students. Enlink finished installation of the GHP system in June of 2006. The system consists of 420 boreholes at a depth of 400 feet, and provides approximately 400 tons of heating and cooling. The system was designed to handle 80% of the academy's cooling load. As a result of the geothermal heat pump system, the academy's energy use is an estimated 40% of a typical school of the same size.
Veterans Tribute Career and Technical Academy (NV) opened its doors in August of 2009. This 131,000 sf building's main sustainable feature is its GHP system. Enlink finished installation in April of 2009. The system consists of 200 boreholes at a depth of 400 feet, and is designed to carry a load up to 500 tons. Savings on utilities and maintenance are estimated to be 25 to 35% compared to a normal school the same size. An estimated 750,000 gallons of water are conserved each year when compared with cooling by a fluid cooling tower.
West Technical and Career Academy (NV) is still under construction. The 210,000 square feet of building should be completed summer of 2010, and the new academy's doors will open August of 2010. The building was designed by the same architecture firm as Veterans Tribute, and constructed by the same company as Northwest Technical and Career Academy. Enlink completed installation of the Academy's GHP system in December of 2009. The project consisted of 220 boreholes at a depth of 350 feet, and an estimated 400 tons of heating and cooling will be provided by the GHP system.
Santa Teresa Middle School (NM) needed to replace its aging HVAC system, which consisted of evaporative heating and cooling. Enlink provided a solution that was both economically and environmentally friendly. The GHP system installation was completed in July of 2004. The project consisted of 400 vertical boreholes at a depth of 400 feet, and provides 400 tons of heating and cooling to the 100,000 sf of building. The School will save an estimated $4 million of relative utility and maintainance costs over a 20 year period, and will experience an estimated reduction of 21.5 million lbs of CO2 emmisions over the life of the system.
El Paso Chamber of Commerce (TX) had a desire to install a heating and cooling system that would reduce their utility and maintenance costs while framing the chamber as an example of sustainability in their community. Enlink’s installation was completed in March of 2002. The project consisted of 128 vertical boreholes at a depth of 350 feet, and provides 264 tons of heating and cooling to the 100,000 sf of building. After a year, the GHP system yielded an annual savings of approximately $120,000. The system will reduce the chamber’s CO2 emissions by an estimated 15 million lbs over the system’s lifetime.
Canutillo High School (TX) was newly built in 2005. The campus consists of 242,000 sf of building, and was designed to accommodate at least 2000 students. Engineers and designers recognized a geothermal system as the solution to the high school’s heating and cooling needs, and an optimal choice for energy and water conservation. The GHP system Enlink installed is comprised of 800 vertical boreholes at a depth of 200 feet, and provides over 700 tons of heating and cooling. This geothermal system is one of the largest GHP systems in Texas.
In 2003 Enlink retrofitted Lubbock Christian University’s Katie Rogers Hall (TX), Johnson Hall, Maddox Pugh Education Building, and the Music Building with a GHP system. Overall the project consisted of 300 boreholes at a depth of 300 feet, and supplies 350 tons of heating and cooling. Solely examining Katie Rogers Hall, the 50,000 sf building was retrofitted from a 2 pipe boiler/chiller system. Immediately after the GHP installation, consumption in electric energy decreased from 75 to 55 kwh, and natural gas consumption decreased from 4250 to 1500 ccf. As a result of the GHP system, energy consumption at Katie Rogers Hall decreased by a total of 40%.
Enlink completed installation of a new GHP system at Ft. Atkinson Middle School (WI) in July of 2008. The system consisted of 220 boreholes at a depth of 300 feet, and provides 420 tons of heating and cooling. The ground source heat pumps replaced the 185,000 sf building’s old HVAC system. As a result, the School saved $42,000 the first year of full operation when compared with the previous year’s energy costs. This represents a total reduction in cost of approximately 21%.
Mesa State College (CO) has been implementing a campus wide geothermal heat pump system. Initially the design was to include the College Center, the North Ave. Residence Halls, Wuben Hall, and the Science Center. The College’s plan has extended its design to include the North Campus, the Library, Houston Hall, and other buildings. The first phase of the project was for a New 50,000 sf classroom and included 72 boreholes at a depth of 500 feet, and provided 150 tons of heating and cooling. Enlink recently completed the second phase GHP installation in April of 2009. This part of the project was for 100,000 sf of residence halls. The system consisted of 144 boreholes at a depth of 500 feet, providing approximately 350 tons of heating and cooling. On completion of the project a total of 340,000 sf of building will be connected to the system, resulting in an annual utilities savings of $200,000.