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nowcastingwindenergy.md

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+---
+cover-image: https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/hero_composite.pngw
+domain: Energy Transition
+tags: wind power, nowcasting, renewable energy, grid operations, wind speed
+provider: GeoSphere Austria
+--- 
+
+# Wind Power Nowcasting for Austria <!--{ as="img" mode="hero" src="https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/hero_composite.png" }-->
+
+As Austria accelerates its transition to renewable energy, wind power plays an increasingly critical role in the national energy mix. However, the inherent variability of wind presents significant challenges for grid operators who must balance supply and demand in real-time. Our wind power nowcasting system provides high-resolution, short-term predictions of wind speed and power output across Austria, enabling more efficient grid management and supporting the integration of wind energy into the electricity system.
+
+## The challenge
+### Predict wind power production at fine spatial and temporal resolution
+
+Wind energy production is highly variable, driven by the chaotic nature of atmospheric dynamics. Traditional weather forecasts, while useful for general planning, often lack the spatial resolution and update frequency needed for real-time grid operations. Austria's complex terrain—from the Alpine regions to the Pannonian plains—creates localized wind patterns that are difficult to capture with coarse-resolution models.
+
+Grid operators need accurate, high-frequency predictions to:
+
+•	Balance electricity supply and demand  
+•	Schedule power plant operations and reserve capacity  
+•	Optimize energy trading decisions  
+•	Prevent grid instability caused by sudden power ramps  
+
+Current operational forecasts typically provide hourly resolution at best, but wind power can fluctuate significantly within minutes, particularly during ramp events. This mismatch between forecast granularity and actual variability creates operational challenges.
+
+## Our solution
+### High-resolution wind power nowcasting at 15-minute intervals
+
+GeoSphere Austria has developed an advanced wind power nowcasting system that combines high-resolution meteorological data with turbine-specific power curve calculations to deliver detailed predictions across Austria.
+
+![Wind Speed and Power Output Example](https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/ws_150m_202506160900_multitemporal_comp_band05.png)
+
+The system provides:
+
+•	**Wind speed at multiple heights** (50m, 100m, 150m above ground level) for optimal turbine matching  
+•	**Power output predictions** for common turbine types including Enercon E-101 and Vestas V90  
+•	**15-minute temporal resolution** capturing sub-hourly variability  
+•	**1km spatial resolution** revealing local wind patterns  
+•	**3-hour forecast horizon** with updates every 15 minutes  
+
+This nowcasting approach bridges the gap between real-time observations and longer-range forecasts, providing grid operators with actionable intelligence for operational decisions.
+
+### Workflow
+
+The system integrates multiple data streams and processing steps to generate reliable nowcasts:
+
+›	**Weather Model Data**: High-resolution (1km) analysis and nowcast fields from GeoSphere Austria's operational system (satellite products included) provide the meteorological foundation, including 10m wind speed, temperature, and surface pressure.  
+›	**Wind Speed Extrapolation**: Advanced algorithms extrapolate 10m winds to turbine hub heights (50-150m) using hybrid methods that combine logarithmic and power law approaches with terrain-aware corrections.  
+›	**Power Curve Application**: Validated power curves from windpowerlib translate wind speeds into expected power output for each turbine type.  
+›	**Quality Control**: Automated quality control flags suspicious values and ensures data integrity throughout the processing chain.  
+›	**Output Generation**: Results are published as Cloud Optimized GeoTIFFs (COG) for efficient web visualization.  
+
+Power curves define the relationship between wind speed and electrical power output for each turbine type:
+
+![Power Curves for Wind Turbines](https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/power_curves.png)
+
+### Technical features 
+
+|                       |               |
+| --------------------- | ------------- |
+| spatial gridding      | 1km (~0.01°)  |
+| temporal gridding     | 15 minutes    |
+| hub heights           | 80, 100, 150m but more available    |
+| turbine types         | currently 5 standard turbines but more available    |
+| forecast range        | +3 hours      |
+| update frequency      | every 15 min  |
+| coordinate system     | EPSG:4326     |
+
+## Use case
+
+›	**Grid Operations**  
+	o	Real-time wind power monitoring for transmission system operators  
+	o	Early warning for power ramp events (rapid increases or decreases)  
+	o	Support for reserve capacity scheduling and dispatch decisions  
+
+›	**Energy Trading**  
+	o	Improved intraday trading decisions based on updated production forecasts  
+	o	Better bidding strategies in balancing markets  
+	o	Risk management for wind power portfolio operators  
+
+›	**Wind Farm Operations**  
+	o	Turbine-specific performance monitoring and optimization  
+	o	Maintenance scheduling during low-wind periods  
+	o	Grid compliance and curtailment management  
+
+## Available services
+
+1. **Free version:** During project runtime, example nowcasts are available for selected dates covering Austria. Access via GTIF-Austria platform.
+2. **Commercial version:** Operational real-time nowcasting service available upon request. Please contact [Irene Schicker](mailto:irene.schicker@geosphere.at), [Stefan Schneider](mailto:stefan.schneider@geosphere.at)
+
+## Example maps <!--{ as="eox-map" mode="tour" }-->
+
+### <!--{ layers='[{"type":"Group","properties":{"id":"BaseLayersGroup","title":"Base Layers"},"layers":[{"type":"Tile","properties":{"id":"terrain-light;:;EPSG:3857","title":"Terrain light"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/terrain-light_3857/default/g/{z}/{y}/{x}.jpeg","projection":"EPSG:3857","attributions":"{ Terrain light: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"http://eox.at\" target=\"_blank\">EOX</a> }"}}]},{"type":"Group","properties":{"id":"AnalysisGroup","title":"Data Layers"},"layers":[{"type":"WebGLTile","source":{"type":"GeoTIFF","normalize":false,"interpolate":false,"sources":[{"url":"https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/Run_1/ws_100m_20250616T0900.tif"}]},"properties":{"id":"wind_speed_100m;:;2025-06-16T09:00:00Z;:;0","title":"Wind Speed 100m"},"style":{"variables":{"vmin":0,"vmax":20},"color":["case",["<=",["band",1],-9998],[0,0,0,0],["interpolate",["linear"],["/",["-",["band",1],["var","vmin"]],["-",["var","vmax"],["var","vmin"]]],0,[255,255,255,1],0.125,[180,230,255,1],0.25,[100,180,250,1],0.375,[50,130,200,1],0.5,[50,200,100,1],0.625,[200,230,50,1],0.75,[255,200,50,1],0.875,[255,100,50,1],1,[200,50,50,1]]]}}]},{"type":"Group","properties":{"id":"OverlayGroup","title":"Overlay Layers"},"layers":[{"type":"Tile","properties":{"id":"overlay_bright;:;EPSG:3857","title":"Overlay labels"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/overlay_base_bright_3857/default/g/{z}/{y}/{x}.png","projection":"EPSG:3857","attributions":"{ Overlay: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"//eox.at\" target=\"_blank\">EOX</a> }"}}]}]' zoom="7" center=[13.5,47.5] animationOptions={duration:500}}-->
+
+#### Wind Speed at 100m Hub Height
+Wind speed nowcast at 100m above ground level, suitable for modern large-scale wind turbines. Values are shown in m/s for 16th June 2025 at 09:00 UTC. Higher wind speeds (orange/red) indicate regions with strong wind resource potential.
+
+### <!--{ layers='[{"type":"Group","properties":{"id":"BaseLayersGroup","title":"Base Layers"},"layers":[{"type":"Tile","properties":{"id":"terrain-light;:;EPSG:3857","title":"Terrain light"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/terrain-light_3857/default/g/{z}/{y}/{x}.jpeg","projection":"EPSG:3857","attributions":"{ Terrain light: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"http://eox.at\" target=\"_blank\">EOX</a> }"}}]},{"type":"Group","properties":{"id":"AnalysisGroup","title":"Data Layers"},"layers":[{"type":"WebGLTile","source":{"type":"GeoTIFF","normalize":false,"interpolate":false,"sources":[{"url":"https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/Run_1/ws_150m_20250616T0900.tif"}]},"properties":{"id":"wind_speed_150m;:;2025-06-16T09:00:00Z;:;0","title":"Wind Speed 150m"},"style":{"variables":{"vmin":0,"vmax":20},"color":["case",["<=",["band",1],-9998],[0,0,0,0],["interpolate",["linear"],["/",["-",["band",1],["var","vmin"]],["-",["var","vmax"],["var","vmin"]]],0,[255,255,255,1],0.125,[180,230,255,1],0.25,[100,180,250,1],0.375,[50,130,200,1],0.5,[50,200,100,1],0.625,[200,230,50,1],0.75,[255,200,50,1],0.875,[255,100,50,1],1,[200,50,50,1]]]}}]},{"type":"Group","properties":{"id":"OverlayGroup","title":"Overlay Layers"},"layers":[{"type":"Tile","properties":{"id":"overlay_bright;:;EPSG:3857","title":"Overlay labels"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/overlay_base_bright_3857/default/g/{z}/{y}/{x}.png","projection":"EPSG:3857","attributions":"{ Overlay: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"//eox.at\" target=\"_blank\">EOX</a> }"}}]}]' zoom="7" center=[13.5,47.5] animationOptions={duration:500}}-->
+#### Wind Speed at 150m Hub Height
+Wind speed nowcast at 150m above ground level for next-generation turbines with taller towers. Typically shows higher and more consistent wind speeds compared to lower heights, particularly in areas with complex terrain.
+
+### <!--{ layers='[{"type":"Group","properties":{"id":"BaseLayersGroup","title":"Base Layers"},"layers":[{"type":"Tile","properties":{"id":"terrain-light;:;EPSG:3857","title":"Terrain light"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/terrain-light_3857/default/g/{z}/{y}/{x}.jpeg","projection":"EPSG:3857","attributions":"{ Terrain light: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"http://eox.at\" target=\"_blank\">EOX</a> }"}}]},{"type":"Group","properties":{"id":"AnalysisGroup","title":"Data Layers"},"layers":[{"type":"WebGLTile","source":{"type":"GeoTIFF","normalize":false,"interpolate":false,"sources":[{"url":"https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/Run_1/power_enercon_e101_3.0MW_20250616T0900.tif"}]},"properties":{"id":"enercon_e101_power;:;2025-06-16T09:00:00Z;:;0","title":"Enercon E-101 Power Output"},"style":{"variables":{"vmin":0,"vmax":3},"color":["case",["<=",["band",1],-9998],[0,0,0,0],["interpolate",["linear"],["/",["-",["band",1],["var","vmin"]],["-",["var","vmax"],["var","vmin"]]],0,[240,240,240,1],0.2,[200,230,200,1],0.4,[150,210,150,1],0.6,[80,180,80,1],0.8,[50,150,50,1],1,[0,100,0,1]]]}}]},{"type":"Group","properties":{"id":"OverlayGroup","title":"Overlay Layers"},"layers":[{"type":"Tile","properties":{"id":"overlay_bright;:;EPSG:3857","title":"Overlay labels"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/overlay_base_bright_3857/default/g/{z}/{y}/{x}.png","projection":"EPSG:3857","attributions":"{ Overlay: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"//eox.at\" target=\"_blank\">EOX</a> }"}}]}]' zoom="7" center=[13.5,47.5] animationOptions={duration:500}}-->
+#### Enercon E-101 Power Output
+Estimated power output for an Enercon E-101 turbine (3.0 MW rated capacity, 99m hub height). Darker green indicates higher power production. This turbine type is common in Austrian wind farms.
+
+### <!--{ layers='[{"type":"Group","properties":{"id":"BaseLayersGroup","title":"Base Layers"},"layers":[{"type":"Tile","properties":{"id":"terrain-light;:;EPSG:3857","title":"Terrain light"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/terrain-light_3857/default/g/{z}/{y}/{x}.jpeg","projection":"EPSG:3857","attributions":"{ Terrain light: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"http://eox.at\" target=\"_blank\">EOX</a> }"}}]},{"type":"Group","properties":{"id":"AnalysisGroup","title":"Data Layers"},"layers":[{"type":"WebGLTile","source":{"type":"GeoTIFF","normalize":false,"interpolate":false,"sources":[{"url":"https://workspace-ui-public.gtif-austria.hub-otc.eox.at/api/public/share/public/WR-03-Energy-Nowcasting-Solar-Wind/wind/Run_1/power_vestas_v90_2.0MW_20250616T0900.tif"}]},"properties":{"id":"vestas_v90_power;:;2025-06-16T09:00:00Z;:;0","title":"Vestas V90 Power Output"},"style":{"variables":{"vmin":0,"vmax":2},"color":["case",["<=",["band",1],-9998],[0,0,0,0],["interpolate",["linear"],["/",["-",["band",1],["var","vmin"]],["-",["var","vmax"],["var","vmin"]]],0,[240,240,240,1],0.2,[200,230,200,1],0.4,[150,210,150,1],0.6,[80,180,80,1],0.8,[50,150,50,1],1,[0,100,0,1]]]}}]},{"type":"Group","properties":{"id":"OverlayGroup","title":"Overlay Layers"},"layers":[{"type":"Tile","properties":{"id":"overlay_bright;:;EPSG:3857","title":"Overlay labels"},"source":{"type":"XYZ","url":"//s2maps-tiles.eu/wmts/1.0.0/overlay_base_bright_3857/default/g/{z}/{y}/{x}.png","projection":"EPSG:3857","attributions":"{ Overlay: Data &copy; <a href=\"http://www.openstreetmap.org/copyright\" target=\"_blank\">OpenStreetMap</a> contributors, Rendering &copy; <a href=\"//eox.at\" target=\"_blank\">EOX</a> }"}}]}]' zoom="7" center=[13.5,47.5] animationOptions={duration:500}}-->
+#### Vestas V90 Power Output
+Estimated power output for a Vestas V90 turbine (2.0 MW rated capacity, 80m hub height). This turbine model is widely deployed across Austria and provides insights into existing wind fleet performance.
+
+## Organizational details and legal information
+
+![GSA_Basislogo_Positiv_RGB_XXS](https://github.com/user-attachments/assets/e4a90124-22af-4c13-b659-f91991b36d0d)
+
+Contact points: [Irene Schicker](mailto:irene.schicker@geosphere.at), [Stefan Schneider](mailto:stefan.schneider@geosphere.at)
+