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Revision as of 05:22, 25 July 2015
Dam in Whatcom County, Washington| Koma Kulshan Hydroelectric Project | |
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  Location of Koma Kulshan Hydroelectric Project in Washington (state) | |
| Official name | Koma Kulshan Project |
| Country | United States |
| Location | Mount Baker National Forest, Whatcom County, Washington |
| Purpose | Hydroelectricity |
| Status | Operational |
| Construction began | 1989 |
| Opening date | October 1990 |
| Owner(s) | Covanta Energy and Atlantic Power |
| Operator(s) | Puget Sound Energy |
| Dam and spillways | |
| Impounds | Sulphur Creek, Rocky Creek |
| Height | Rocky Creek Dam: 32 feet (9.8 m) Sulpher Creek Dam: 37 feet (11 m) |
| Length | Rocky Creek Dam: 18 feet (5.5 m) Sulpher Creek Dam: 15 feet (4.6 m) |
| Koma Kulshan powerhouse | |
| Operator(s) | Puget Sound Energy |
| Commission date | 1990 |
| Type | Run-of-the-river |
| Hydraulic head | c. 1,600 ft (490 m) |
| Turbines | 1 x Sulzer Escher Wyss Pelton wheel |
| Installed capacity | 13.3 MW @ maximum flow 120 cu ft/s (3.4 m/s) |
| Capacity factor | 38.6% (2009-2010) |
| Annual generation | 45,000,000 kWh (10/1/2009–9/30/2010) |
| Website www | |
The Koma Kulshan Project is a 13.3 MW run-of-the-river hydroelectric generation facility on the slopes of Mount Baker, a stratovolcano in Washington state's North Cascades. The project commenced commercial operation in October 1990, and is owned by a Covanta Energy–Atlantic Power joint venture. It supplies Puget Sound Energy via a Power Supply Agreement (PSA) contract. Its single turbine is a Pelton wheel supplied by Sulzer Escher Wyss.
Located in the Mount Baker National Forest, it is one of six Federal Energy Regulatory Commission (FERC)-licensed small hydro installations on Federal Government land in Washington state.
Koma Kulshan is the name of Mount Baker in the Lummi dialect.
Dams
Intakes are located at diversion dams on the Rocky Creek and Sulphur Creek tributaries of Lake Shannon. A 42–45-inch (1,100–1,100 mm) diameter, 19,250-foot (5,870 m) long penstock carries water from a bifurcation (48°41′29″N 121°47′31″W / 48.6914°N 121.7919°W / 48.6914; -121.7919 (Penstock head), 2,750 feet (840 m) a.s.l.) to the powerhouse. Water is discharged from the powerhouse through a short run on Sandy Creek to Baker Lake. Up to 120 cubic feet per second (3.4 m/s) is diverted to the powerhouse.
Rocky Creek Dam (48°41′06″N 121°48′23″W / 48.6849°N 121.8065°W / 48.6849; -121.8065 (Rocky Creek diversion dam)) is 18 feet (5.5 m) high, 32 feet (9.8 m) long at 2,770 feet (840 m) a.s.l.
Sulphur Creek Dam (48°41′34″N 121°47′34″W / 48.6928°N 121.7928°W / 48.6928; -121.7928 (Sulphur Creek diversion dam)) is 15 feet (4.6 m) high, 37 feet (11 m) long at 2,755 feet (840 m) a.s.l.
Diversion of the creek had an impact on the appearance of Upper and Middle Sulphur Creek Falls.
Peak generation
Further information: Washington (state) § ClimatePower generation peaks in May through July coinciding with snowmelt, and has a smaller peak in November coinciding with the wet season.
See also
Other PSE hydro projects include:
- Baker River Hydroelectric Project
- Electron Hydroelectric Project
- Snoqualmie Falls Hydroelectric Plant
References
- Burkardt, Nina (April 1995). "Technical Clarity in Inter-Agency Negotiations: Lessons From Four Hydropower Projects" (PDF). Water Resources Bulletin. 31 (2). American Water Resources Association: 188–189. Retrieved 10 July 2015.
- ^ Power generation statement, Koma Kulshan Associates, October 22, 2010 – via FERC
- ^ "Koma Kulshan". Atlantic Power Corporation. Retrieved 8 July 2015.
- Renewable Resources Development Report California Energy Commission, State of California, November 2003, principal authors: Ann Peterson, Pamela Doughman, Todd Lieberg
- Northwest Regional Forecast of Power Loads and Resources August 2007 – July 2017 (PDF), Portland, Oregon: Pacific Northwest Utilities Conference Committee (PNUCC), April 2007 – via efsec.wa.gov
- Covanta Energy sustainability report 2009/2010
- Christopher Bergesen (ed.), "Kulshan site", Power Plants Around the World (Website), Bethesda, Maryland, retrieved 2015-07-08
- ^ Micro hydro at Virtual Nuclear Tourist
- ^ Koma Kulshan site, Global Energy Observatory, c. 2006
- Bright, William (2004), Native American Placenames of the United States, University of Oklahoma Press, ISBN 9780806135984
- ^ Amended license, FERC, April 25, 1990
- Water quality certification, Koma Kulshan project (PDF), Washington Department of Ecology, September 16, 1986
- Site map, Hydrokinetics, September 8, 1980 – via FERC. Note: Site map shows two unbuilt diversion dams on Dillard Creek and Sandy Creek, and does not match as-built configuration of penstock.
- Koma Kulshan Hydroelectric Project average annual flows for the period 10/1/10 to 9/30/11, Koma Kulshan Associates, December 14, 2011 – via FERC
- Initial Consultation Document: Baker River Project, FERC No.2150, Existing Conditions (PDF), Puget Sound Energy
- Bryan Swan, "Upper Sulphur Creek Falls", Northwest Waterfall Survey, retrieved 2015-07-08
- Bryan Swan, "Middle Sulphur Creek Falls", Northwest Waterfall Survey, retrieved 2015-07-08
External links
Map all coordinates using OpenStreetMapDownload coordinates as:
- FERC document library of documents related to permit 3239, Koma Kulshan
- "Dillard Point Lookout". Peakbagger.com. — area topographic map
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