In the analysis business, we will use programming languages and GIS (geographic information systems) to evaluate power generation capacity and site wind conditions based on the results of observations and simulations in the development area.
1. Power generation evaluation
Overview
In order to evaluate the business viability of a wind power generation business, it is necessary to calculate the amount of power generated based on wind condition data at the hub altitude of the wind turbine location obtained from observations and simulations and the power curve of the wind turbine.We propose an evaluation of power generation amount suitable for the development area based on observations and simulations.
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- We conduct desk-top studies, rough estimates, and optimize wind turbine placement based on existing wind condition maps and simulation results.
- Based on uncertainties in observations, simulations, correction methods, etc., predicted power generation values are calculated according to the probability of exceedance.
- We will conduct an evaluation based on conditions regarding the amount of power generated in various cases (wind turbine hub altitude, wind turbine layout, wind turbine model, sector management, output suppression at grid-connection points, etc.).

2. Site wind condition evaluation
Overview
In the site wind condition assessment for domestic wind farm certification, it is necessary to calculate normal and extreme wind conditions (average wind speed, extreme wind speed, turbulence intensity, wind speed vertical shear, etc.) at the hub height of the wind turbine location in order to select a wind turbine model that is suitable for the environment of the development area. We compare and verify wind condition data obtained from observations and simulations, and conduct site wind condition assessment based on methods that comply with domestic and international standards (e.g. IEC, JIS).
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- We provide analysis and reporting for wind farm certification.
- We will compare the average wind speed and vertical shear of wind speed obtained from observations and simulations to verify the validity of the simulations.
- We will carry out evaluations based on various conditions (turbine hub height, turbine layout, turbine model, etc.).

3. Other
Overview
We perform analysis, statistical processing, and visualization related to wind condition surveys in general.
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- For wind condition data obtained from observations and simulations, we calculate time series data, detect and remove outliers, interpolate missing values, and correct for long-term fluctuations.
- To conduct an initial study of the business feasibility, we calculate a year's worth of wind data using observational data that is less than a year's worth and various meteorological data (e.g., Japan Meteorological Agency GPV, ECMWF-ERA5).
- Wind information is calculated and visualized from various data.

