Site evidence for development decisions.

Measure before committing to a full campaign.

Wind maps help identify candidate sites, but local terrain can produce substantial differences at the intended measurement location. Short-term LiDAR adds site measurements between map screening and investment in a mast-based campaign.

Hub-height wind and shear from the outset.

Measurements at a lower mast height do not, by themselves, establish the wind speed at hub height. LiDAR measures at multiple heights, including hub height and up to 200m, depending on the configuration and measurement conditions. This reduces reliance on vertical extrapolation alone.

Measure the
wind aloft.Hub-height wind
and vertical profiles

200mUpper measurement range

Hub heighte.g. 90–120m

58mMast-height example

WINDCUBE + fuel-cell power

The ranking at 58m can change at hub height.

In these power-law examples, wind speeds of 5.60–6.20m/s at 58m all become approximately 6.5m/s at 100m when different shear exponents are applied.

Actual profiles may depart from a single power law. Multiple-height measurements help identify changes in the profile, wind potential aloft and issues requiring further investigation. Larger shear is not automatically better: excessive shear and local terrain or tree effects also need evaluation.

These curves are illustrative calculations, not measured data. The small differences at 100m do not establish a site ranking or an energy yield difference.

Reconstruct a historical one-year wind dataset.

We assess the relationship between approximately three months of LiDAR measurements and concurrent reference data such as MSM or ERA5. Where suitable, MCP (Measure–Correlate–Predict) applies that relationship to the nine months preceding the measurements.

The result is a historical dataset ending with the observation period. The estimated and measured periods are identified separately. No additional nine-month observation period is implied; the reconstructed year is also distinguished from a long-term climatological estimate.

Site and season selection are part of the service.

We review monthly wind directions and directional energy distributions before choosing the observation window. Sites with clear dominance of the principal energy-bearing wind directions are the primary candidates. Winter measurements are preferred where winter winds dominate; other periods require assessment of seasonal transferability and correlation quality.

Observation timing also depends on access, land use, permissions, power and equipment availability. Poor seasonal coverage or correlation may require a longer campaign or measurements in another season.

This is an early-stage screening service. It does not replace a full-year site measurement campaign or final certification/design assessments. Complex-terrain measurement effects and unobserved seasonal shear remain part of the evaluation.

LiDAR, mast and data management.

We plan WINDCUBE campaigns around terrain, snow, power, communications and maintenance conditions, in collaboration with NERI. Measurement locations are reviewed for their relationship to the planned turbine area and local flow influences.

Monthly reports with technical interpretation.

Data management combines time-series review, measurement-quality checks and explanatory comments. Reports are tailored to installed sensors and the agreed scope.

• Monthly wind speed by height and valid data recovery
• Wind roses, directional energy distributions and vertical wind profiles
• Turbulence intensity by wind speed, frequency distributions and Weibull fits
• Temperature, humidity and pressure where measured
• Documented missing data, sensor issues, suspected icing and processing decisions

For co-located mast and LiDAR campaigns, we compare concurrent data at corresponding heights: wind-speed R² and regression slope, wind-direction distributions, overlaid wind roses and normalized shear profiles. Monthly reporting is distinguished from a complete certification-specific correlation assessment.

Nearby meteorological observations can also provide context for monthly wind variations. Original and processed data, exclusions and any gap filling are documented separately.

Wind conditions for turbine and layout discussions.

We combine measurement review with CFD to assess local flow, preliminary energy yield and wind conditions relevant to early turbine selection.

• MASCOT-based flow analysis with terrain and surface conditions
• Comparison with observations and review of model assumptions
• Preliminary energy yield comparisons across turbine types, hub heights and layouts
• Initial extreme wind speed, shear and turbulence evaluations
• Wake effects, losses, constraints and long-term wind context

MASCOT is a flow-analysis package developed jointly by the University of Tokyo and Suiki Network. It is used for wind resource and extreme wind speed assessments in Japan’s complex terrain.

We document inputs, assumptions and unresolved issues for developer and turbine-manufacturer discussions. Final certification and design-suitability assessments are coordinated with the responsible specialist consultants and manufacturers.

From measurement locations to operating assets.

Measurement planning and turbine layout

We review measurement locations for representativeness, local terrain effects and later use in assessment. Turbine layouts bring together energy yield, wakes, extreme wind conditions, shear, turbulence and civil-development constraints. We support technical discussions among developers, civil teams and turbine manufacturers, with experience on layouts that have progressed to construction.

Operational performance analysis

We support owners after commissioning by examining the relationship between wind conditions and generation, comparisons with turbine power curves, and the effects of stops and error events. Findings support discussions with the turbine manufacturer and decisions on further investigation.

Technical due diligence support

Our experience includes acquisition reviews of operating wind farms, pre-construction assessments, lender-facing technical reviews and assessments soon after commissioning. The evaluation topics, available evidence and deliverables are agreed for each assignment.

Site development with NERI

Joint work connects candidate-site information and field investigations with measurement plans, local flow assessment and preliminary turbine layouts. Equipment, access and maintenance conditions are considered alongside the analytical requirements.

Define the project and the intended decision.

For an inquiry, include the location, current project stage, technical issue and the work you are considering commissioning.