Risk & Resilience
Quantify and mitigate operational, environmental, and systemic exposure dynamically.
Industry Challenge
Blade and nacelle icing causes simultaneous multi-turbine curtailments, asymmetric blade loading, and ice-throw safety hazards that together represent one of the most operationally disruptive risks in cold-climate wind markets. Icing events reduce annual energy production by 0.5–17% depending on site latitude and elevation, and trigger forced shutdowns that interact poorly with grid balancing obligations. Current operator responses rely on fixed meteorological temperature thresholds that generate both false positives (unnecessary curtailment during non-icing cold conditions) and dangerous false negatives (missed icing during wet snowfall above 0°C). The financial penalty from mis-timed curtailment in cold-climate markets with tight production obligations can reach millions of dollars per winter season.
Virentis Initiative
Virentis integrates NWP temperature and humidity forecasts, nacelle anemometer temperature telemetry, and power curve deviation monitoring into a multi-signal icing risk score at turbine level. The model distinguishes wet icing conditions from dry cold events using the Magnus formula for supercooled liquid water probability. Risk scores above configurable thresholds trigger de-icing protocol recommendations or automated curtailment advisories before ice accretion becomes structurally or safety significant. Post-event ice detection from power curve recovery patterns updates the model for improved future predictions.
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