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Centralia
Location: WA
Operator: TransAlta
Configuration: 2 X 702 MW
Operation: 1972-1973
Fuel: subbituminous coal
Boiler supplier: CE
T/G supplier: Westinghouse
EPC: Bechtel
Quick facts: Centralia was acquired by TransAlta from a consortium of
local power companies in 2000. The nearby Centralia mine produces exclusively for the power plant and provides about 85% of the
annual 5.5mn ton fuel burn. The balance is sourced form the Powder River
Basin. In 2002, TransAlta completed a $180mn plant upgrade including the
addition of Alstom FGD scrubbers.
Photograph courtesy of TransAlta
Posted 27 May 2006 |
Clear AFS
Location: AK
Operator: US Air Force
Configuration: 3 X 7.5 MW CHP
Operation: 1961
Fuel: subbituminous coal
Boiler supplier: ??
T/G supplier: General Electric
Quick facts: Clear Air Station is home to the 13th Space Warning Squadron whose primary
mission is to provide early warning of ballistic missiles launches to
North American Aerospace Defense Command (NORAD). The AFS also provides
space surveillance data on orbiting objects. The power plant was retrofit
with a baghouse and continuous opacity monitoring system in Aug 2005.
Clear AFS burns approximately 58,000 tons of coal per year delivered by
rail from Usibelli Coal Mine Inc.
Photograph courtesy of US Air Force
Posted 12 Mar 2008
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Healy Clean Coal
Location: AK
Operator: Alaska Industrial Development and Export Authority
Configuration: 1 X 62.9 MW
Operation: 2011
Fuel: subbituminous coal
Boiler supplier: FW
T/G supplier: Fuji
EPC: S&W, FW, H C Price Co, Sumitomo
Quick facts: HCCP was built as the result of a 1980s DOE solicitation for innovative
coal-combustion power generating technologies. The boiler has an advanced
slagging combustor system with LNB followed by a sorbent injection/spray
dryer/baghouse system. In 1991, Golden Valley Electric Association
entered into a 30yr PPA with AIDEA for output from HCCP. A 90-day
test run was completed in Dec 1999, at which time the
net capital cost of the facility was $281mn. By that time, GVEA was already
litigating the PPA acceptance terms and in Mar 2000 AIDEA and GVEA entered
into a Settlement Agreement, which provided for the interim shutdown of
HCCP. The plant has never operated since. Further litigation and legal
actions ensued until Dec 2009 when GVEA and AIDEA finalized negotiating
documents for an asset purchase sales agreement. When the GVEA purchase
is concluded, restart engineering and modifications will be required
before anticipated commercial operation in 2011. Fuel will be from
Usibelli Coal Mine, a partner in HCCP from the beginning.
Photograph courtesy of Alaska Energy Wiki
Posted 24 Mar 2010 |
