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management of their output. plants, and successfully directs the marketing and in-house expertise to design, operate and maintain these past two decades, Management has developed the co-ops, public utilities and municipal utilities. Over the energy, including third-party developers, local energy developed with a variety of entities promoting renewable renewable energy plants. The remaining plants have been is the managing partner for 29 of the typical on-line availability of more than 95 percent. plants range in size from two to 11 megawatts, and achieve currently operating throughout the United States. The plants with a total capacity of almost 200 megawatts technologies, has more than 40 gas-to-energy Today, Waste Management, the leader in environmental company built its first medium Btu gas plant in Ohio. facilities in Wisconsin in 1985. Two years later, the Waste Management built its first two-landfill gas-to-energy dependable and readily available. with a renewable energy resource that is natural, expertise, Waste Management has provided communities innovation with its environmental and operations landfill gas-to-energy technology. Combining technological Since the mid-1980s, Waste Management has been a leader in THE INDUSTRY LEADER surrounding produce safe, renewable power while protecting the Management gas-to-energy projects continously that Waste Monitoring gas and levels within ensures Gas-To-Energy environment. representative. your Waste Management Landfill & Industrial Services sales Management in renewable energy projects, please contact For more information about participating with Waste Many. For example, in 1999, Waste Management was A. Have Waste Management gas-to-energy projects Q. Currently, gas from Waste Management landfills is being A. What kind of companies use electricity from Q. Landfill gas cannot be stored. Therefore, gas that is not A. What happens to landfill gas that isn’t immediately Q. Landfills produce landfill gas throughout their life. The A. Q. How long does a landfill produce landfill gas? FREQUENTLY ASKED QUESTIONS: Think Green. From everyday collection to environmental protection, its landfill gas-to-energy efforts. the “Project of the Year” award from the EPA’s LMOP for Pa., received Landfill in Plainfield Township, Northampton County, 2000, Waste Management’s Grand Central Sanitary efforts to promote landfill gas-to-energy technology. In to-energy projects honored by the EPA for outstanding of just seven allies, partners and individual landfill gas- (LMOP) Industry Ally of the Year. The company was one named the EPA’s Landfill Outreach Program received any special recognition or awards? in 21 states. chemical companies, utilities and power cooperatives used by many industries, including major automotive, landfill gas? at the site using flares. used immediately to produce power must be burned off converted to electricity? closed. flow begins to decrease shortly after the landfill is SM Think Waste Management. © WMI.127.27 0805 Waste Management Inc. INDUSTRIAL LANDFILL & SERVICES INDUSTRIAL LANDFILL &

SERVICES GAS-TO-ENERGY For Innovations in Renewable Energy L and promote environmental sustainability. North America’s drive to develop alternative energy sources Landfill gas-to-energy is a vital and important part of resources such as coal, oil, and nuclear energy. using a renewable form of energy to offset non-renewable medium BTU or high BTU — benefit the environment by These projects — whether traditional gas-to-energy, • Energy availability exceeds 95%, compared to 90% for • Fuel price is stable • Provides a predictable, renewable energy resource • Energy output is constant and not dependant on sun, • Reduces dependency on foreign energy sources include: advantages and other alternative energy sources. These benefits and and advantages compared to both traditional fossil fuels In addition, landfill gas-to-energy provides many benefits as being environmentally friendly. Agency (EPA) has endorsed landfill-gas-to-energy systems energy source. The Federal Environmental Protection Landfill gas has proven itself to be a reliable and economical RENEWABLE ENERGY SOURCE AN ENVIRONMENTALLY FRIENDLY heat to tens of thousands of nearby homes and businesses. electricity, a renewable energy source that brings light and naturally occurring gases are captured and converted into waste. In fact, at numerous Waste Management landfills, United States and Canada. But not all that waste goes to of waste are sent to hundreds of landfills throughout the energy industry as a whole during “peak hours” wind or other environmental variables America’s solid . Every day, thousands of tons andfills are the principal depositories for North www.wmdisposal.com operations modifications on the part of their end-users. high Btu pipeline-quality gas. Use of this gas requires no processed to re High Btu Projects: both landfill gas and fossil fuels. landfill gas modify their operations to allow the burning of furnaces. Typically, the end-users of the medium Btu to off-site industrial customers for use in fuel boilers and Medium Btu Projects: power to continuously serve approximately 3,000 homes. typical traditional gas-to-energy facility will generate enough to an on-site electricity generating engine or turbine. A de-watered, filtered, compressed, and then piped directly Traditional Gas-to-Energy: facilities: Today, there are three basic types of landfill gas-to-energy GAS-TO-ENERGY PROJECTS solution. provide a dependable, renewable and pollution free populations, Waste Management gas-to-energy projects responsible ways to provide energy for their growing With cities nationwide looking for new, environmentally move the the move A project where landfill gas is A facility that pipes landfill gas Think Green. and then sold as A facility where landfill gas is ® Gas-To-Energy

The cycle begins with the collection of household 1 waste from residential neighborhoods. The waste Much of this waste, including , paper and is then transported to Waste Management 2 cardboard, is organic in nature. Anaerobic bacteria landfills for permanent disposal. digest this organic waste and produce methane gas and carbon dioxide as natural byproducts.

To complete the cycle, the electricity is delivered 6 via utility transmission lines to residential and commercial customers.

The methane gas is recovered via a series of wells 3 drilled into the landfill. These wells are connected by a common pipe system that collects the gas and transports it to a nearby compression facility.

5 The gas is piped to an electricity generating plant where it is used as fuel to turn engines or turbines to generate electricity. Landfill gas may also be piped offsite to industrial customers for use as an source.

4 At the compression facility, the landfill gas is de-watered, filtered and pressurized.