Word: wood
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...Northwest lumber mills but now enjoys being perceived as "one of the good guys" for running such a green operation. Idaho's system was a pioneer, coming on-line in 1986, and has been evolving since 2002 under Lyngholm, whose innovations include erecting a large building for stockpiling wood chips for times of supply shortages. The plant also burns campus landscape trimmings and discarded wooden cargo pallets. (See new ways to boost energy efficiency...
Idaho's central boiler is heated by burning wood to temperatures approaching 2,000°F, performing on par with what is called Advanced Wood Combustion (AWC) technology developed in Europe. "AWC is so clean and safe that AWC systems are commonly deployed in the midst of picture-perfect European towns and villages," says Daniel Richter, professor of soils and forest ecology at Duke University. They are different from ordinary plants that generate electricity by burning wood. In a piece in the journal Science last March, Richter wrote that 90% of the solar energy stored in wood is transformed into...
...third of U.S. energy supplies goes toward heating, making use of electricity, natural gas, oil, coal, propane and some wood. Advocates of technology like AWC say that one-third of that could be provided by modern wood combustion, which would eliminate significant outlays for imported oil and cut net contributions of carbon emissions...
...backing, they have been popping up from New England to the Pacific Northwest. The new technology does have support - for now. Fuels for Schools is a six-state program funded by federal and state money that helps to retrofit school boilers, switching them from burning oil and gas to wood. Starting in Vermont, it spread westward, giving budget-strapped local districts huge savings and a way to cut into buildups of forest deadfall that might otherwise fuel wildfires. However, it is now almost out of federal money. Even after the program helped retrofit heating systems in 10 Montana schools...
...grade school in Deer Lodge, Mont., recently converted to burning sawmill wastes, allowing its heating-gas bill to immediately drop from $6,600 a month to $1,100. Townsend, Mont., schools converted their boilers from propane and oil to wood pellets. The new system is expected to pay for itself in fuel savings, plus selling CO2 emission offsets through the Climate Trust. Meanwhile, Vermont's Middlebury College is completing a central thermal biomass system that will provide heating and cooling, saving $2 million a year on fuel-oil bills, plus generating one-fifth of campus electrical-power needs. Middlebury...