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SU-YAPI Engineering & Consulting Inc.

Wind Energy Pilot Project

Client Turkish Branch of European Wind Association
Partner Decon GmbH, Wind-Consult Gmbh (Germany)
Financing European Investment Bank (EIB)
Duration of Services 1998 – 2000
Brief Description of the Project :

Initially, total 8 areas, namely Kocadağ (Çeşme), Gökçeada (Çanakkale), Akhisar (Manisa), Karabiga (Çanakkale), Karaburun (İzmir), Yalıkavak (Bodrum), Datça (Muğla) and Göktepe (Muğla) were selected, advantages and disadvantages offered by these areas were compared, and Gökçeada, Datça and Akhisar areas were selected as the project areas. A further detailed study, taking into consideration the wind velocities, adequate space for the plant, possibility of connection to interconnection system as well as the topographical conditions, resulted in selection of Gökçeada (Çanakkale) as the project area. For the pre-selected three areas, these criteria were studied in more detail to include investigations to define the land ownership pattern and find out if the site is tourism or an archaeological asset, if the plant would cause any drawback for any radio-links, airports and environment.

On Gökçeada, the Aydıncık peninsula which has suitable topography, is open to the north to receive adequate wind and close to the existing EIEI ganging station, was selected as the project site, and a 30 m-high gauging pole was erected on the peninsula in October 1998. Apart from a wind rose outfitted on the top of the pole, anemometers, each at 10 m, 20 m and 30 m, were mounted on the pole. Data from a logger, having been installed in a building far away from EIEI gauging station, could not be used for short-term correlation with the data from anemometers on the gauging pole, but they were used only for long-term correlation. During gauging, means of access to the site for transportation of the equipment to be incorporated in the future wind energy plant, including the geological conditions of the area, capacities of ferries and other vessels carrying cargo to Gökçeada, as well as the capacities of existing berthing piers, access roads and bridges.

For city network connection, capacities of existing deep-sea cable and power transmission lines as well as the capacities of transformers in Tuzla and Kumlimanı, including the short-circuit capacity of the existing network, any flicker and other effects that may be caused when the plant is on and off the circuit, were studied. On the basis of the results of these studies, three models each of 6 MW, 13 MW and 15 MW were considered. Turbine capacities were defined, and for a plant of such size, 600 kW and 1 000 kW turbines were found to be adequate. Thus, 6 scenarios for three plant models and two turbine types were assessed. Market research resulted in selection of the types of Turbines, of which annual energy output was computed on WasP and Wind-Pro programmes, using the collected data. Layout of turbines was defined for each unit, and efficiency of total wind field was calculated, taking into consideration the shading effect, which a turbine may produce, on another.

Energy generation cost for each scenario was calculated on the basis of investment cost, rate of interest, investment period and costs of energy generation and plant operation.

Potential environmental impacts, in particular, such nuisances as noise and unsightly appearance, and detrimental impacts on flora and fauna were assessed, and the results were compiled in a report. It was assessed that in the post-project period, CO2 emission in some 18 226 tons could be prevented.

Scope of Services:
  • Preparation of Feasibility Report,
  • Environmental Studies.