26 Mar '12, 12pm

Ball State Dedicates Largest Closed-Loop Geothermal System in America

Ball State Dedicates Largest Closed-Loop Geothermal System in America

Indiana’s Ball State University last week dedicated the largest vertical closed-loop geothermal heating and cooling system in the United States. A few of the 3,600 geothermal boreholes across campus When fully complete, the project will allow the school to shut down its four aging coal-fired boilers, prevent 85,000 tons of annual carbon emissions (cutting the campus carbon footprint in half), and save $2 million in annual operating costs. Phased Approach Construction began on the system in 2009, and will ultimately connect 5.5 million square feet of space in 47 buildings across the 660-acre campus with geothermal power. Phase one was recently completed, consisting of 1,800 boreholes drilled on two geothermal fields and a new energy station connecting the fields with buildings on the northern end of campus. Work recently began on phase two of the project, and will continue ...

Full article: http://cleantechnica.com/2012/03/26/ball-state-dedicates-...

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