RES Americas

Kansas Wind and Renewable Energy Conference 2008

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RES Americas Inc

Organization

RES Americas is primarily a leading Wind Energy Company but is moving into other renewable fields

Established Broomfield, CO office as Corporate Headquarters

Development

Technical, Resource Assessment

Construction

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History of RES Americas

RES Americas’ U.S. construction surpasses 1,000 MW

RES Americas began developing projects for ownership

RES Americas’ U.S. construction surpasses 3,000 MW

Commercial operations of RES Americas’ first owned project, Whirlwind, in the U.S.

RES constructs its first project

Renewable Energy Systems Limited founded by Sir Robert McAlpine

RES Americas constructs its first U.S. project

1981 1992 1999 2006 2008

The RES Group has a long history in wind technology development

RES Americas takes projects from conception - leasing land, acquiring transmission rights and setting up Power Contracts with Utilities

RES Americas is currently constructing approximately 1,400 MW, representing more than 30% of the wind capacity currently under construction in the U.S. and will have constructed approximately 3,500MW by the end of 2008.

2001

RES Americas co-developed and constructed the 278 MW King Mountain Wind Ranch, the largest wind project in the world at the time it was constructed

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Wind Power Industry Overview

Between 2007 and 2030, electricity demand in the U.S. and Canada is expected to increase approximately 30%

Significant portion will be met with renewables

PTCs Accelerated tax depreciation State / provincial policies and wind energy incentives

− Renewable Portfolio Standards (“RPS”)

Renewable energy is expected to capture a significant portion of the electricity sector

Wind energy incentives

Wind expected to represent 7% of U.S. capacity by 2015

Cumulative capacity of 57,000 MW by 2015

RES currently has over 600 MW in various stages of development in Kansas

Wind energy is the future of renewable power generation

Through 2012, natural gas prices are forecast to remain in the $8-$12/mmbtu range, keeping wind cost-competitive with gas-fired electricity generation in many state electricity markets

Increasing cost of traditional fuels

Focus on greenhouse gas emissions in both the U.S. and Canada has further prompted the growth in renewable generation

Greenhouse gas considerations

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-

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

U.S. Canada

North American Wind Opportunity

North American Installed Wind Capacity Growth

Source: EER, Nov 2007.

(in MW)

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Emerging Renewables

RES is using wind power expertise to develop and construct projects that generate power using solar thermal, solar PV, and biomass

Also interested in energy storage, though this is still a developing field.

Focused on utility-scale, grid-connected projects.

RES is leveraging existing land positions, interconnection agreements, and relationships with utilities

Solar PV can generate power almost anywhere – but it’s still expensive

Solar thermal is less expensive – but requires the direct sunlight found in the Southwest US

Ausra C

LFR

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RES Americas Inc

Construction

U.S. Business

Constructed - 20 Projects in US = 2,060 MW; 1999 – 2007

Under Construction - 12 Projects = 1,480 MW

Construction Activities

Wind Farm Design

Civil and Electrical Design

Procurement

Civil, Electrical, Mechanical Construction

Construction Management

Turbine Procurement

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Central Plains Wind Farm

Size: 99 MW

Location: Wichita County, Kansas

Developer: RES Americas

Ownership: Westar

Contract Type: EPC

Construction Start: April 2008

Substantial Completion: December 2008

Turbine Technology: 33 Vestas V90 3.0 MW

Interconnection Voltage: 115 kV

Total Length of New Road: 7 miles

Total Length of Collector System:

19 miles

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Central Plains Wind Farm – The Beginning

•The project was originally scheduled to be constructed in 2003 and then 2004

•Resurrected as Central Plains Wind Farm.

•Construction began in April, 2008

•Wichita Economic Development, Inc.

•Wheatland Electric Coop

•Sunflower Electric Power Corp.

•Local source for road base material

•Kansas civil contractor for roads construction

•Kansas contractor to construct O&M Building

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Central Plains Wind Farm - Roads

•Oakley, KS roads contractor

•6.7 miles of roads, 20 foot wide with 8 foot shoulders

•Roads built from crushed base material over a Geotextile fabric

•Roads completed in July

•Extensive testing on sub-grade and road base.

•Shoulders are tested for bearing capacity

•Crane pads designed and tested for the specific loads encountered during lifts.

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Central Plains Wind Farm - Foundations

•55 foot octagonal spread foot

•11 foot total height

•Approximately 410 cubic yards of concrete per foundation

•Approximately 80,000 pounds of rebar per foundation

•Total foundation weight is over 1,600,000 pounds

•Foundations are designed internally

•Design is specific to turbine and site conditions

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Central Plains Wind Farm - Electrical

•Power is transmitted from the turbines to the substation at 34,500 volts

•Over 19 miles of underground cable

•All turbines, substation and O&M building connected by fiber optics

•Collection system nearing completion

•Substation transformer steps up the 34,500 volts to 115,000 volts for connection to the transmission line

•Metering and system protection take place in the project substation

•Substation scheduled for to be energized on October 20th

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Central Plains Wind Farm - Turbines

•Vestas V90, 3 Megawatt turbines

•Tower is 80 meters, 262 feet, tall and weighs over 370, 000 pounds

•Each blade is 44 meters, 144 feet, long and weighs over 14,000 pounds

•The nacelle and hub weigh over 175,000 pounds

•Total weight of turbine is approximately 600,000 pounds

•Wind farm will produce enough power for approximately 35,000 homes

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Central Plains Wind Farm - Turbines

•The crane used will have a track length of 38 feet, width of 34 feet and a boom height of 320 feet

•The assembled crane will weigh about 1.2 million pounds

•The crane will be transported to the site on over 20 tractor trailers.

•The major components will be shipped from the port to Kansas by rail

•First tower section will be erected by the second week in October.

•The blades will be installed one at a time, single blade erection

•First turbine will be completely erected by the end of October

•Project will reach Substantial Completion before the end of December

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RES Americas