Posts Tagged ‘selection’

Wind Resource Assessment

Wind resource map of site

WINData conducts wind resource assessments to determine the meteorological and climactic characteristics of a site and from this analysis can estimate the potential power production and the impact to the project’s bottom line.

WINData provides  met program design, data collection, data summaries, wind power output summaries, wind site analysis and professional meteorological certified reporting as per client requirements. Preliminarily, WINData can often determine a site’s seasonality and wind quality through a combination of a site visit, maps, and any existing site or regional data.

WINData site analysis is conducted using wind speed, wind direction, temperature, pressure and regional air density data gathered at or near the site’s location. Typically, wind flows vary over the complex terrain in a project area and it is crucial to have an experienced analyst conduct a topographically appropriate site study.

WINData wind site assessments provide project owners and designers with:

  • The average wind speed over all the turbine locations for the project
  • The maximum mean wind speed at the turbine location
  • Mean Wind Speed
  • Weibull Parameters and
  • Turbulence Intensity

Other factors examined to determine the environmental conditions at the site include:

  • Annual average ambient temperature
  • Extreme minimum ambient temperature
  • Extreme maximum ambient temperature
  • Days of temperature below –17° C
  • Days of temperature above 30° C
  • Average relative humidity
  • Height above sea level

The Weibull scale parameter and mean wind speed are used to determine the IEC Classification of the site and the subsequent classes of turbines that are suitable. The lower Weibull shape parameter indicates a large mean wind speed. The air density at the site is lower than at sea level, which will reduce the fatigue caused by the large mean wind speed.

If the temperatures on-site are very low, Low Temperature Option package are required from the turbine manufacturer and will be necessary for the best performance of the wind turbines at the project site. WINData uses the met data analysis to determine the size, number and manufacturer of wind turbines that will be used.

For each turbine, the following information is considered:

  • Power Curve
  • Technical specifications
  • Tower type and proposed hub height
  • Design life
  • Level of certification achieved
  • IEC design wind class (I, II or III)
  • Summary of performance guarantees and warranty provided

WINData can lead the process for final wind turbine selection and generate turbine recommendations for the project site. As the turbine selection process proceeds, WINData can go out to the list the potential turbine vendors to determine the availability and delivery schedule and other aspect of the turbine supply process, and further, obtain firm pricing bids and negotiate TSA’s and MRO’s for equipment and for warranty, service, and maintenance agreements with the manufacturer.

Wind Plant Design

WINData uses wind resource assessment, site topographical conditions, site and county permitting requirements, military clearance and FAA permits to layout wind turbine arrays to optimize output of a wind plant design. WINData has designed many wind plants has extensive experienced modeling wind plant output.

WINData also has extensive experience in the following areas:

  1. Utility and energy business technical understanding
  2.  Identify and spearhead development opportunities
  3. Project scoping, development strategy and bid formulation
  4. Technical team leader and project manager
  5. Wind resource assessment and meteorological science
  6. Project design and modeling
  7. Conduct meetings with land owners, communities, Utilities, stakeholders, governmental agencies and tribes
  8. Contract and agreement formulation, negotiation and execution
  9. Technical writing

Services

WINData offers a full range of wind energy consulting services for resource selection, siting and analysis of site potential.Our wind energy consultants have been in the siting business since 1991 and have been involved in every aspect of the business from initial land owner relations to negotiations with power off-takers.

WINData stresses project suitability, comprehensive site analysis, investment quality proposals, community acceptance and an environmentally benign design approach. Our clients include landowners, investors, large-scale wind developers, real estate developers, law firms, utilities, federal, tribal and state governmental agencies and other clients across the nation and worldwide.

From project conceptualization, feasibility assessments and initial development work to investment finance due diligence and construction project management, WINData provides deep domain experience and crucial expertise in the development of superior wind projects, wind portfolios and project pipelines.

Permitting and Mitigation

WINData provides services to facilitate site permitting and avian and wildlife impact mitigation in compliance with United States Fish and Wildlife Service (“USFWS“) guidelines with regard to impact issues. Reduction of risk begins with the initial site selection screening.  Existing information is used to select sites that appear, based on a variety of available information,to be environmentally benign and have lower levels of avian and wildlife use. Our specialists determine species known to occur in the area, that may be specifically listed by the USFWS as threatened or as a “species of special concern”.

Once a site is chosen, additional site-specific studies can be conducted to determine whether portions of the site have relatively higher or lower avian use levels. That information is used in the siting of individual turbine locations. The reduction of avian risk is an extremely site-specific issue that is frequently referred to during the site design process.

In addition to reducing avian risk through siting decisions, the selection of technology and careful planning to minimize avian perching opportunities on wind farm equipment are essential. The use of tubular, rather than less-expensive lattice, turbine towers; the use of perch-free smooth nacelles; the undergrounding of power collection and communication cables; the use of tall towers and slowly rotating turbine blades all contribute to reducing avian risk on the site.

Turbines are set back from rim edges approximately 50 meters to avoid a zone of raptor use as well as of the rim edge. Similarly, based on its development experience, WINData uses tubular (rather than less expensive lattice) towers and underground power collection cables, in its plant layouts, to avoid creating avian perching opportunities.

Finally, WINData plant designs use large capacity wind turbines to reduce the number of turbines and increase the spacing between turbines and rows of turbines. The slower rotational speed for blades of the large turbines and the tall towers that raised the blades high above the ground may be particularly important factors in reducing avian risk.

Wind Project Development

WINData, LLC is a veteran engineering company that provides professional wind project development services to the wind industry. WINData wind project work comprises over 15 GW of wind farms and conceptual developments across the United States.

WINData’s pioneering work in the 1990’s and early 2000’s contributed significantly to the wind energy projects on the Blackfeet Reservation, Cut Bank, Ethridge and Judith Gap in Montana; the Columbia River Gorge in Washington and Oregon and near Casper, Wyoming

WINData provides a full range of wind energy project services from initial met program design, resource  analysis, land work, plant design and permitting to negotiation of Interconnection and Power Purchase Agreements and plant construction and commissioning. Our Principals have been integral in wind project origination since 1991 and have significant experience in every aspect of the business from initial land owner relations to negotiations with power off-takers.

Comprehensive professional services

WINData offers the following comprehensive professional services to clients:

  • Utility and energy business technical team leadership
  • Identification and origination of wind development opportunities
  • Project scoping, development strategy and bid formulation
  • Technical team assembly, leadership and management
  • Wind resource assessment and meteorological science
  • Wind project micro-siting, project design and output modeling
  • Conducting meetings with land owners, communities, Utilities, stakeholders, governmental agencies and tribes
  • Contract and agreement formulation, negotiation and execution
  • Technical writing and presentations
windata_logoWINData LLC, Great Falls, MT Phone: 406-209-8111, http://windatallc.wordpress.com/
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