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UNH becomes first university in nation to use landfill gas as primary energy source
Date:9/13/2007

DURHAM, N.H. The University of New Hampshire, in cooperation with Waste Management of New Hampshire, Inc., has launched EcoLine, a landfill gas project that will pipe enriched and purified gas from Waste Managements landfill in Rochester to the Durham campus, UNH President Mark Huddleston announced. UNH is the first university in the nation to undertake a landfill gas initiative of this magnitude.

The renewable, carbon-neutral landfill gas, from Waste Managements Turnkey Recycling and Environmental Enterprise (TREE) facility in Rochester, N.H., will replace commercial natural gas as the primary fuel in UNHs cogeneration plant, enabling UNH to receive 80 to 85 percent of its energy from a renewable source.

By reducing the universitys dependence on fossil fuels and reducing our greenhouse gas emissions, EcoLine is an environmentally and fiscally responsible initiative, said Huddleston. UNH is proud to lead the nation and our peer institutions in this landmark step toward sustainability.

Construction began in August on a landfill gas processing plant in Rochester which will purify the gas, and on a 12.7-mile underground pipeline which will transport the gas from the plant to the universitys Durham campus. UNH is expected to fuel its cogeneration plant with landfill gas by the fall of 2008. Estimated cost of the project, including the construction of a second generator at UNH, is $45 million.

Waste Management is very pleased to work with UNH on this significant and innovative landfill gas-to-energy initiative, said Alan L. Davis, district manager of TREE for Waste Management. This project will add to the growing roster of landfill gas-to-energy projects operated by Waste Management across the country, and it will help us responsibly allocate the companys resources while providing renewable power to the communities we serve.

As the nations largest owner and operator of landfills, Waste Management recently announced a major landfill gas-to-energy initiative that will result in the creation of an additional 60 renewable energy facilities. In total, Waste Management will generate more than 700 megawatts of clean renewable energy enough to power 700,000 homes or replace over eight million barrels of oil. A pioneer in landfill gas-to-energy projects, Waste Management designed and operated its first such facility in the U.S. more than 20 years ago. With 281 landfills in North America and more than 100 already having landfill gas-to-energy projects underway, Waste Management is in a unique position to expand waste-based renewable power generation across the country. Waste Management currently has two landfill gas-to-electric plants at TREE producing green power for over 9,000 homes which will continue to operate, while excess gas will be sent to UNHs new renewable energy project.

Once construction on EcoLine is completed, the pipeline will not be visible, running four feet underground along Rochester roads, the Spaulding Turnpike, and the Pan Am Railways right-of-way onto UNH property. At UNH, landfill gas will replace commercial natural gas in UNHs cogeneration (co-gen) plant, the primary source of heat and electricity for the five million square-foot Durham campus. The co-gen plant, which began operations in 2006, captures waste heat normally lost during the production of electricity and uses this energy to heat campus buildings, making more efficient use of energy resources.

More importantly, the landfill gas will stabilize the universitys fluctuating energy costs, which have doubled in the last five years and grown at an annual rate of 18.9 percent.

EcoLine will also have a major impact on UNHs carbon dioxide emissions. It will reduce the universitys greenhouse gas emissions an estimated 67 percent below 2005 levels and 57 percent below 1990 levels.

Landfill gas is a naturally occurring by-product of landfill decomposition. Waste Management has a state-of-the-art gas collection system at TREE consisting of over 300 extraction wells, miles of collection pipes, and compressors to capture the landfill gas.


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Contact: Beth Potier
beth.potier@unh.edu
603-862-1566
University of New Hampshire
Source:Eurekalert

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