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Case studies* - residential and commercial

U.S. EPA verified 75% savings of
electrical energy and greenhouse gases

The U.S. Environmental Protection Agency’s Greenhouse Gas Technology Center conducted a 15-month test of the EarthLinked® Commercial Water Heating system performance. The test was conducted in an assisted living facility in Sun City Center, Florida.

The EPA report verifies 75% savings of electrical energy by the EarthLinked system in comparison with electric resistance water heating. By avoiding the generation of that amount of electricity, a typical EarthLinked unit avoids the emission of 7,000 pounds of carbon dioxide and 15 pounds of nitrous oxide per ton of capacity per year, which amounts to 42,000 pounds of CO2 and 90 pounds of NOX each year by a typical 6-ton capacity EarthLinked unit. That is equivalent to not burning 3,642 gallons of gasoline or 74 barrels of oil annually.

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Residential Installations

Martha's Vineyard, U.S.

EarthLinked dealer Nelson Mechanical Design has a long-standing reputation for being a green contractor, and it goes beyond the steps many HVAC contractors are taking now, well intentioned though they may be. That’s because NMD has been a trailblazer, pushed in part by the progressive customers on Martha’s Vineyard.

The Doug Rothmann home on the Vineyard is a net-zero energy, LEED for Homes building powered by a wind turbine. The horizontal, 6-ton, direct-exchange geothermal system serves radiant space-heating loads.
Read ACHR NEWS article

Jim Oswald - Kentucky, U.S.

In 2002, Jim installed a 4-ton EarthLinked system in his new 2,600 square foot home. The total electric cost for the home from November 2002 through November 2008 averages $74.55 monthly. The highest monthly winter heating bill is $125, and the summer cooling bill is only $75. Jim says, “I have been quite happy with the EarthLinked unit and believe very much in the value of the product.” He has even dedicated a web page to real-time monitoring results for the system.
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John Cavanagh - New Hampshire, U.S.

"We live in a 2,600 square feet house. We are running about 40% colder this winter than last and about 12% colder than the 30-year average. So, we are putting the EarthLinked system to the test and it is passing with flying colors."
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Commercial Projects

Australian Square Kilometer Array Pathfinder

The Commonwealth Science and Industry Research Organization of Australia (CSIRO) selected an EarthLinked system to cool the electronics in a radio telescope in the desert of Western Australia. The system has been subjected to testing since September 2009 and serves as the prototype for an array of radio telescopes that will eventually consist of 3,600 systems. The EarthLinked unit uses an air coil condenser to exhaust superheat and the remaining heat is dissipated in the ground through earth loops, which is possible only because of ETI’s proprietary refrigerant flow controls.

Read the paper presented at the
Australian Geothermal Conference 2009
progress photos to be posted at later date

B'rush Ski Lodge - Mt. Hotham, Australia

The 28-year old B’rush Ski Lodge at Mt. Hotham in the Victorian Alps, 2.5 hours Northeast of Melbourne, was spending too much money for too little comfort each winter. “With the new system in place, the building has been spectacularly comfortable―unquestionably the best in its 28-year history, and it was achieved with substantially less energy,” according to Murray Neilson, a ski club member who monitored the system performance. “It has been very comfortable and universally acclaimed by all guests.”
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Lapoint Chapel - Utah, U.S.

The Lapoint Chapel of The Church of Jesus Christ of Latter-day Saints in Lapoint, Utah replaced a coal-fired boiler with nine EarthLinked systems. Not only does a comparison of the annual heating costs show an average savings of $8,330 per year, the members of the chapel continue to appreciate greater comfort with the EarthLinked heating system.
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ETI Headquarters - Florida, U.S.

EarthLinked Technologies' new manufacturing and office facility has been approved as a LEED Certified Project, sponsored by the Leadership in Energy and Environmental Design program of the U.S. Green Building Council.
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SERRES BENOÎT Greenhouse - Quebec, Canada

Technical summary of a commercial greenhouse. The total area of the greenhouses is 11,570 square feet. A 7,000 square foot production workshop is connected to the greenhouses.
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Senior Care Group - Florida, U.S.

"The Sun Towers Retirement Community recently completed the installation and extensive evaluation of an EarthLinked Commercial Water Heating system," says David Vaughan, President of Senior Care Group. "Based upon our customer satisfaction I am happy to act as a reference on their behalf. The EarthLinked system delivered a significant operating cost reduction, short term ROI and a positive environmental impact."
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DLC Investments - New Hampshire, U.S.

DLC Investments, the owner of 142 condominium units in Claremont, NH, reduced the cost of water heating by 67-70% with EarthLinked Commerial Water Heating Systems. Performance and savings were monitored and reported by Public Service Company of New Hampshire.
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Fire Station - New Hampshire, U.S.

Volunteer firefighters staff this 8,000 square foot fire station that has three apparatus bays, a training room, equipment room, offices and fire equipment storage with an emergency communication and management center.
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Ace Hardware - New Hampshire, U.S.

A 21,000 square foot Ace Hardware store in the northeastern U.S. is saving an average of more than $1,000 per month in heating and cooling costs by using six 6-ton EarthLinked systems.
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