We are actively expanding our capabilities in energy yield assessments (EYAs) to support developers and investors with accurate, transparent forecasts of long-term energy production.
As part of our broader expertise in power systems and grid integration, we bring a practical, system-aware approach to estimating the performance of wind and renewable energy projects.
Our services range from wind resource analysis and turbine power curve modelling to full loss breakdowns and curtailment impact assessments. Using industry-standard tools and robust methodologies, we deliver clear, data-driven outputs to guide decision-making throughout the development lifecycle.
Our team combines a deep understanding of power system behaviour with growing experience in wind energy modelling. By integrating site-specific wind data, validated power curves, and network considerations, we provide developers with realistic yield projections that help optimise project design and reduce investment uncertainty.
What Is An Energy Yield Assessment?
An Energy Yield Assessment provides a forecast of the electricity a wind project is expected to produce, using site-specific wind resource data, turbine layout, and modelling tools. EYAs are essential in renewable energy project planning, influencing investment decisions, project design, and grid connection strategy.
At Blake Clough Consulting, we support developers with technically robust EYAs that account for real-world factors like curtailment, power system constraints, and environmental losses. Our approach combines strong analytical methods with practical experience to reduce uncertainty and improve project outcomes.
EYA Services
Wind Resource Characterisation – We analyse long-term wind conditions using reanalysis datasets (e.g. ERA5, MERRA2), mesoscale models, and where available, on-site data from meteorological masts or LiDAR. We assess shear, turbulence, and directional stability to produce a detailed and reliable wind resource profile for each site.
Turbine and Site Modelling – Using validated power curves and industry-standard software tools (e.g. WindPRO, OpenWind), we simulate turbine performance across a range of operating conditions. We model wake losses, topography, and layout effects to estimate gross generation potential with accuracy.
Loss and Curtailment Evaluation – We account for a full spectrum of loss factors including wake interaction, availability, electrical losses, and environmental constraints. Where relevant, we integrate grid curtailment scenarios to reflect network export limitations and Active Network Management (ANM) arrangements.
Optional Scenario Modelling – We offer scenario-based analysis including sensitivity testing on wind data sources, layout variations, hub height alternatives, and turbine technology changes. Our team also supports uncertainty assessments through probabilistic yield analysis or P-level forecasting (e.g. P50, P90).
Our approach to energy yield assessments is not just about estimating output; it’s about helping our clients make confident, evidence-based decisions at every project stage. We deliver clear, well-documented results, complete with visual tools like wind roses, power curves, and loss breakdowns, all designed to support strategic planning, financial modelling, and investor engagement.