Onshore Wind Resource Analysis - Wind Energy Institute of Tokyo, Inc.

Overview

Using analysis software such as "MASCOT" and "WAsP," we calculate normal (operational) and extreme (storm) wind conditions required for conformity assessment. We also estimate Annual Energy Production (AEP) for business feasibility evaluation.
We also conduct various analyses utilizing on-site measurement data and SCADA data.

Track Record (As of End of September 2025)

　・Third-party certification compliance for onshore Wind Farms (Extreme wind conditions): 21 cases (Projects certified since 2022).
　・Annual Energy Production (AEP) calculation: more than 39 cases.(Sep 2020 – Sep 2025)

Third-Party Certification Support

We calculate operational (normal) and extreme (storm) wind conditions required for Wind Farm certification by registered bodies (such as ClassNK or Bureau Veritas), strictly following their respective guidelines.
For extreme wind conditions, we can perform calculations for regions requiring typhoon simulations.
We also conduct wind resource assessments and prepare comprehensive measurement reports.
Please consult us for specialized analysis, including representative radius calculation based on terrain complexity, wake effect removal, and CFD correction of LiDAR data in complex terrain.

Annual Energy Production (AEP) Estimation

We provide Annual Energy Production (AEP) estimations tailored to every stage of development, from preliminary assessments to bankable reports for financial institutions. In addition to standard parameters such as wake loss and P50 values, our estimations also cover the following items.

・Annual Energy Production by exceedance probability (e.g., P90).
・Creation of power output time series.
・Power curtailment analysis considering grid connection capacity.
・Consideration of sector management conditions.
・Wind turbine layout study and optimization.
・Forecast-versus-actual evaluation using SCADA data.

Please contact us(03) 6811-2515