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| Benefits of high wind regimes experienced in the Country by Eng. P.L.G. Kariyawasam - Charted Electrical Engineer, CEB |
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Abbreviations –
CEB (Ceylon Electricity Board), PUCSL (Public Utilities Commission of Sri Lanka), UNDP (United Nations Development Programme), GOSL (Government of Sri Lanka), NREL (National Renewable Energy Laboratory, USA), IRNEA (International Renewable Energy Agency), n.a. (Not available), NCRE (Con-Conventional Renewable Energy)
Abstract
Wind power generation is the top player in renewable energy field in the world and it could be seen that the number of utility scale wind power plants developed is ever increasing. This report focuses to make a comparison on the predicted wind energy production based on the measured wind data and the actual performance of wind farms operational in Sri Lanka. Also it emphasize that the Feed-in-Tariff applicable for wind power generators could be further reduced due to high wind regimes experienced in Sri Lanka in par with the other countries of the region.
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| Background |
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In year 2002, CEB published the results obtained on Wind Resource Assessment and Project Preparation Project in the Puttalam and Central regions of Sri Lanka, which is a sub-project of the overall project of the Ministry of Power and Energy on “Capacity Building in Renewable Energy and Energy Efficiency” funded by the UNDP and GOSL.
Based on the wind speed measurements collected during the study period (Four (04) 40 m high measuring masts were erected in Puttalam region and Three (03) masts were erected in Central hills).
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| The foreign consultant of the project, M/S Espace-Eolien Development, France, have modeled a sample wind farms in both the regions based from the meteorological data sources from measurement stations and estimated that around 35% Capacity Factor (The capacity factor of wind power plant is the ratio of average delivered energy to theoretical maximum energy.) could be obtained with NEG – Micon750/48 machine and 30% with NEG – Micon 750/44 machine. (The hub height of the turbines has been fixed at 50 meters above ground level in both cases. NEG – Micon 750/48 machine has a 48 meters rotor diameter, while NEG – Micon 750/44 machine has a 44 meters rotor diameter). Also, it was estimated that 4% less energy in the Central Region of Ambewela with the same machines and at the same hub height. |
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