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# Power Generation Prediction
Wind Conditions Analyses and Power Generation Prediction for an Onshore Wind Power Project
ClientPrivate company (wind power project operator)
LocationTohoku region
Onshore wind power projects are increasingly being planned for mountainous regions (or areas of complex terrain) amid decreasing availability of suitable development sites. At the same time, project economic feasibility considerations often lead to the development of large-scale wind farms. In this undertaking, we analyzed wind conditions and made power generation predictions for a large-scale wind farm planned in a mountainous region, and we provided the power generation business with various analytical results that contributed to project planning.

PROJECTProject outline

When conducting wind analyses and power generation predictions for a large-scale wind farm, it is standard practice to make calculations of the vast size of the target area by dividing the area into a number of sub-areas. In areas of complex terrain, these activities become relatively difficult and it is not easy to provide results with high reliability (prediction precision), which means that considerable amounts of time and money must be expended. We provide services that expertly address demands of this nature.
In this case presented here, the project involved the installation of a large-scale onshore wind farm in the Tohoku region’s interior (mountains area). As project planning was still at an early stage and details were yet to be established, we conducted simulation-based wind analyses, studied wind turbine arrangements and types based on the results, and calculated extreme wind speeds. We then proposed the case that we thought had the highest project feasibility.
Due to the vastness of area envisioned for development and the fact that wind data was being obtained from multiple locations, we subdivided the calculation area and then calculated the amount of power to be generated in multiple cases for each of wind turbine arrangement, turbine type, and turbine hub height. The number of calculation cases became enormous as a result, so considering power generation by exceedance probability, we made prediction calculations for nearly 100 cases. Based on these calculations, we proposed the suitable wind turbine arrangements and turbine types from the standpoint of product feasibility and used them to develop the basic plan for the project.
Comment from the person in charge

A major factor that determines the success or failure of a wind power project is accurate understanding and analysis of the local wind conditions and the highly precise prediction of power generation based on them. We were involved in wind observation/analysis and power generation prediction even before wind power’s commercialization took off in earnest (before the year 2000). We use our extensive experience and knowledge here to provide a broad range of services to meet all needs in these areas.

Description of the project presented in the example


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