Colby College Biomass Facility; Source: Colby College. |
Colby College is a private liberal arts school in
Waterville, Maine. The institution took a large step towards its goal of
becoming carbon neutral by 2015 when it went on line with its new biomass plant
in January. Using approximately 22,000 tons of local wood per year, the
facility produces steam to make heat and electricity. By replacing close to 1
million gallons of heating fuel each year, the biomass plant is expected to
save the college up to $250,000 each month in the winter.
The college chose a gasification system by Chiptec Wood
Energy Systems, out of Vermont. Chiptec has been in business for over 90 years,
focusing exclusively on biomass waste-to-energy systems since 1986. From the
company website, it looks to us like Chiptec uses a partial oxidation
technology. Colby is the fourth institution of higher learning to use Chiptec
technology for a biomass plant.
Feedstock is supplied by Cousineau Forest Products, bringing
wood chips, bark and treetops from a radius of 50 miles to the campus and
storing excess in an underground storage bin. The project was made possible by
a grant from Efficiency Maine as part of the Competitive Grants for Large
Greenhouse Gas Reduction Projects.
So why did the project at the University of Montana fail
while the Colby College plant succeeded? Both included gasification systems
that would run on woody feedstock and both were situated on college campuses in
states that are generally considered environmentally conscious. The answer lies
in part, in consideration of what the biomass plant was replacing.
Colby College’s biomass facility allowed it to reduce its
oil consumption by almost 90 percent. On the other hand, Missoula’s power was
coming from natural gas, which is cleaner and cheaper than oil. The Montana
project was ultimately canceled as a result of “deteriorating discourse,” from
members of the community who were concerned about the emissions. No one was
going to argue in favor of keeping a system that relied on oil in Waterville.
Better BTU Take: The
moral of the story is go after coal or oil, not the natural gas. Farther down
the road, we’d like to see all facilities operating from renewable energy, but
right now, let’s approach projects that already have existing infrastructures
(as these two did) and replace the most harmful (and expensive) fuels first.
For More Information on Colby College’s Biomass Plant:
Maine
College Has Biomass Plant for Heat, Energy – Associated Press, Jan. 18,
2012
Maine
College Fires Up Biomass Plant – Biomass Magazine, Jan. 27, 2012
Biomass
Expansion Information Sheet – Colby College
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