Rocky Mountain Power’s
WYOMING wind projects
Company-owned and contracted
wind generation
Foote Creek I
• In service since April 1999
• Located in Carbon County near the town of Arlington
• 69, 600-kilowatt turbines
• Co-owned with Eugene Water & Electric Board
• 32.6-megawatt generating capability – Rocky Mountain Power’s
portion (total generating capability is 41.4 megawatts)
Seven Mile Hill and Seven Mile Hill II
• In service since December 2008
Mountain Wind Power, LLC and Mountain Wind Power II, LLC
• In service since July 2008 (Mountain Wind Power) and
September 2008 (Mountain Wind Power II)
• Located in Uinta County near the town of Piedmont
• 2.1-megawatt turbines (29 – Mountain Wind Power and
38 – Mountain Wind Power II)
• Generating capability: 60.9 megawatts – Mountain Wind Power
and 79.8 megawatts – Mountain Wind Power II
• Rocky Mountain Power is purchasing 100 percent of
the facility’s energy output under a long-term power
purchase agreement
• Located in Carbon County between Hanna and Medicine Bow
• 1.5-megawatt turbines (66 – Seven Mile Hill and 13 – Seven Mile
Hill II)
• Generating capability: 99 megawatts – Seven Mile Hill and 19.5
megawatts – Seven Mile Hill II
Glenrock, Rolling Hills and Glenrock III (sited at the reclaimed
Dave Johnston coal mine)
• In service since December 2008 (Glenrock) and January 2009
(Rolling Hills and Glenrock III)
• Located in Converse County near the communities of Glenrock
and Rolling Hills
Three Buttes Windpower, LLC
• In service since December 2009
• Located in Converse County near Glenrock
• 66, 1.5-megawatt turbines
• Generating capability: 99 megawatts
• Rocky Mountain Power will be purchasing 100 percent
of the facility’s energy output under a long-term power
purchase agreement
Top of the World, LLC
• 1.5-megawatt turbines (66 – Glenrock; 66 – Rolling Hills and 26 –
Glenrock III)
• In service since October 2010
• Generating capability: 99 megawatts – Glenrock; 99 megawatts –
Rolling Hills; 39 megawatts – Glenrock III
• 66, 1.5-megawatt turbines and 44, 2.3-megawatt turbines
High Plains and McFadden Ridge 1
• Located in Albany County and Carbon County near the town
of McFadden
• High Plains: 66, 1.5-megawatt turbines
Generating capability – 99 megawatts – In service
September 2009
• McFadden Ridge I: 19, 1.5-megawatt turbines
Generating capability – 28.5 megawatts – In service
September 2009
Dunlap I
• In service since October 2010
• Located in Carbon County, near Medicine Bow
• 74, 1.5-megawatt turbines
• Generating capability: 111 megawatts
• Located in Converse County near Glenrock
• Generating capability: 200.2 megawatts
• Rocky Mountain Power will be purchasing 100 percent
of the facility’s energy output under a long-term power
purchase agreement
Casper Wind Farm
• In service since December 2009
• Located outside of Casper in Natrona County
• 11, 1.5-megawatt turbines
• Generating capability: 16.5 megawatts
• Rocky Mountain Power will be purchasing 100 percent
of the facility’s energy output under a short-term power
purchase agreement
Wind project facts:
• Cost-effective renewable energy resources are beneficial to
both business and the environment. Electricity from wind,
geothermal, biomass and solar energy facilities is integrated
into the company’s system, which also includes power generated
from coal- and natural gas-fueled plants and hydro facilities.
With a diverse resource mix, the region enjoys a more reliable
supply of electricity.
• PacifiCorp, which serves customers in Wyoming as
Rocky Mountain Power, has 920.7 megawatts of owned wind
generation capability in its resource mix, with an additional 500plus megawatts of purchased wind generation capability from
projects owned by others.
• According to an American Wind Energy Association study
released in April 2009, PacifiCorp is one of the largest utility
owners of wind energy resources in the nation, second only to its
sister utility MidAmerican Energy Company.
• To manage costs and risks for all customers, the company’s
generation resources (coal, natural gas, hydro, renewable, etc.)
are pooled for the six states we serve and each state pays only its
allocated portion of the costs.
• In addition to the electricity generated by our Wyoming wind
projects, the state and its residents also benefit from the job
opportunities and property tax revenues created by these projects.
• In 2009, PacifiCorp paid approximately $3.2 million in Wyoming
property taxes associated with its investment in wind generation
projects, roughly 25 percent of the total property taxes paid by
the company in Wyoming. From 2008 to 2009, PacifiCorp’s property
tax payments in Wyoming increased by nearly 45 percent.
• Seven of our nine company-owned wind projects located in
Wyoming were brought in service in 2008 and 2009. These
seven projects involved a total peak construction workforce of
approximately 775 contract employees (peak construction times
varied by project).
• Our Wyoming wind-powered generation projects currently
employ approximately 50 workers to operate and maintain the
facilities (company employees and contract employees).
• The wind turbines utilized for the Seven Mile Hill, Seven Mile Hill II,
Glenrock, Rolling Hills, Glenrock III, High Plains, McFadden Ridge I,
and Dunlap I wind projects stand 262 feet high with a 252-foot
diameter blade sweep.
• Most land under company-owned Wyoming wind projects remains
under the control of the landowner for ranching purposes.
• Rocky Mountain Power works closely with landowners,
communities and public officials to gather input and follow all
rules and regulations when finding suitable locations for wind
farm development.
Visit rockymountainpower.net/renewable for more
information about the company’s renewable energy resources.
© 2010 Rocky Mountain Power 10/10