Windographer 4 is a desktop application for wind resource assessment and data analysis used by wind energy developers, consultants, and researchers. The following concise write-up highlights what Windographer 4 offers, how to download it safely, installation tips, and licensing considerations.
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Licensing and trial
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Windographer 4 is a legacy version of the industry-leading wind resource data analysis software. While version 4 introduced key features like MERRA data integration and typical-year data creation, it has since been succeeded by Windographer 5 and the latest Windographer v6. Download and Access windographer 4 download top
Trial Version: You can typically download a free 2-week trial of the current version directly from UL Solutions.
Legacy Downloads: Specific legacy installers like version 4 are usually available to existing license holders through the UL Renewables Support Portal.
Pricing: Licensing is now primarily subscription-based rather than one-time perpetual purchases. Key Features of Version 4 (Legacy)
If you are specifically looking for version 4, it was notable for:
Data Integration: Faster downloads of MERRA reanalysis data.
Calibration: A calibration window for easy slope/offset adjustments.
Analysis Modules: Representative Year module for "typical year" data and Forecast Error Analysis.
Industry Export: Ability to export multiple measurement height data to Openwind. Why Upgrade?
Upgrading to newer versions (v5 or v6) provides significant performance benefits:
64-bit Architecture: Handles much larger datasets than the older 32-bit version 4. Windographer 4 is a desktop application for wind
Intelligent Workflows: Version 6 includes automatic data ingestion and smarter data validation/flagging.
Multi-Dataset Management: Allows you to work on multiple datasets within a single workbook. Windographer version 6 is here - UL Renewables
Windographer 4, developed by UL Solutions (formerly AWS Truepower), is a legacy version of the industry-standard software for importing, analyzing, and visualizing wind resource data.
As of April 2026, the software has advanced to Windographer version 6. While Windographer 4 is still recognized for its reliability, users are encouraged to use the most current version for improved data ingestion and validation. Download and Official Access
The most secure way to access Windographer is through the UL Solutions Official Site.
Trial Version: A free trial is typically available on the developer's portal, allowing you to test features before purchasing.
Purchasing: The full edition requires a paid license. UL Solutions transitioned version 4 to both permanent license and annual subscription models.
Legacy Support: For existing license holders of version 4, downloads and documentation are often managed via the UL Solutions Client Portal. Key Features of Windographer 4
If you are specifically using version 4 for its legacy compatibility, it introduced several "top" features that defined the software's current capabilities:
Rapid Data Import: Automatically detects data structures for wind speed, direction, and temperature from met towers, SoDAR, and LiDAR. Where to download
MERRA Data Downloads: Version 4 significantly optimized the download speed for free long-term MERRA data from NASA, reducing wait times from hours to minutes.
Calibration Tools: A dedicated calibration window for easier slope and offset adjustments.
Team Collaboration: Improved sharing of data "flags" and quality control rules within teams.
File Compatibility: Version 4.0.12 and later improved support for SymphoniePRO data loggers (*.RLD files). Version Progression
Windographer 5: Introduced the ability to analyze multiple wind datasets together with greater speed and flexibility than version 4.
Windographer 6: The current standard, which automates data cleaning and validation that previously required manual effort in version 4.
Caution: Avoid third-party "free download" sites (e.g., GetWinPCSoft or Software Informer) as they may host outdated versions or pose security risks. Always verify your download through official UL Solutions channels.
Based on your request, it seems you are looking for the download information for Windographer 4, specifically the top or standard professional version.
Here is the text compiled for a download page or informational request:
If you are a professional, you need the paid license. The "TOP" in your search query might refer to the "Windographer 4 Premium" tier (which includes LiDAR QC and SCADA analytics).
Version 4 has native support for ZephIR, WindCube, and Galion LiDAR units. It automatically reconstructs wind speed at multiple hub heights from remote sensing data.
Before you initiate the download, ensure your workstation meets the minimum requirements. While Windographer is not graphically intensive, it is processor-heavy when handling large datasets.