Data and Solutions

Windographer 5

Windographer 5 has been re-engineered from the ground up to provide you with better performance and more powerful tools. This long-awaited release is just the beginning of a new and more robust Windographer platform. Try out Windographer 5 today.

Download Now
Windographer just made a big leap! Try out Windographer 5 today.
Try 2 Weeks for Free

Access Data Quickly

See how Windographer 5 can simplify your life.

Analyze multiple datasets together

Instead of focusing on one dataset at a time, build a single workbook to contain all of your related datasets.

Import all kinds of data

Windographer reads virtually all data formats common to the wind power industry.

Multiple windows simultaneously

Keep your eye on multiple visualization modules while you make any modification.

Combine multiple data files

The File > Append process adds data from one or more data files to an existing data set.

Undo any modification

If you make a mistake like deleting the wrong data or executing the wrong flag rule, a multi-level undo system lets you restore your data, even days or months afterwards.

Manage larger datasets

Now a 64-bit application, Windographer 5 can handle much larger quantities of data.

Wind roses

Create many types of wind roses, including frequency by direction, mean value of any data column by direction, total wind energy by direction, and even polar scatterplots.

Import high-frequency data

Windographer 5 can read one-second data and even smaller time steps.


New subscription model

We now offer Windographer via subscription only. This new approach means you will always have access to the latest version of software. It also frees our developers to release improvements to the software as soon as they are ready instead of holding them for the next major release. This will provide your team with the ability to continuously integrate the latest technology into your workflow.


Flag data segments based on visual inspection

By simply clicking and dragging on a time series graph or a scatter plot, you can manually apply flags to data segments to identify problems such as sensor malfunctions or icing events. Once you have applied flags, you can use those flags to filter data from graphs and calculations.



The powerful new MCP module lets you compare and correlate with reference data, experiment with different time steps of comparison, solve for the optimal time offset, choose among several correlation algorithms, test which algorithm works best on your data, and compare your target data before and after the MCP process. Download long-term reference data for free.

Version 5.1.1 (Mar 31, 2022)

  • Added new workbook summary table.
  • Made the adjustments react correctly to dataset ID changes and reversals via undo.
  • Small improvements and fixes to the process of importing data from a database.

Version 5.1.0 (Mar 25, 2022)

  • Added user control over the size of the undo buffer to limit windog file size.
  • Added buttons to Dataset History window to allow user to trim revisions to shrink file size.
  • Improved performance of Configure Dataset and Long Term Adjustments windows.
  • Added Save Template and Load Template buttons to Configure Dataset window.
  • Added workbook summary graphs to the main window.
  • Added user control over which column types display by default in time series graphs.
  • Expanded WIS files to encompass data column properties and displacement height.
  • Added MCP algorithm performance test window.
  • Added Test MCP Uncertainty window that measures uncertainty using a bootstrap analysis.
  • Added a 'correct tower shading' mode to the Correct Tower Distortion window.
  • Added option to filter by maintenance periods in Scatterplot, In Situ, and Tower Distortion windows.
  • Added high wind hysteresis modeling to Wind Turbine Output window.
  • Added temperature shutdown and derating to Wind Turbine Output window.
  • Improved data import logic.
  • Fixed bugs in append process, reconstruction process, and EPE export.
  • Fixed bugs in Flag By Scatter Plot, Long Term Adjustments, and In Situ Comparison windows.

Version 5.0.12 (Dec 15, 2021)

  • Added option to export time series files in Windows number format or North American format.
  • Fixed bug causing incorrect number formatting if the Windows number format was not the North American standard.
  • Allowed the import of Excel files.
  • Allowed the import of unprocessed Ammonit Meteo-32 files.

Version 5.0.11 (Dec 2, 2021)

  • Fixed bugs in Data Coverage window leading to erroneous results in some modes.
  • Fixed bug causing In Situ window to warn of spurious calibration changes.
  • Fixed bug preventing the append process from working in some situations.

Version 5.0.10 (Nov 29, 2021)

  • Added a menu item to restore factory default toolbar and menu layout.
  • Fixed bug causing Daily Statistics table to repeat the first day's stats for every day.

Version 5.0.9 (Nov 23, 2021)

  • Fixed bug preventing the adding of new turbines and turbine groups.
  • Fixed bug causing Export Data window to disable some date/time controls.
  • Fixed bug causing use of incorrect Weibull fit algorithm in some cases.

Version 5.0.8 (Nov 15, 2021)

  • Improved speed of the Openwind export process.
  • Fixed bug in v5 Openwind export logic causing incorrect air density values in some cases.
  • Fixed bug causing invalid WPD values in time steps with missing temperature data.

Version 5.0.7 (Nov 5, 2021)

  • Fixed bug preventing the undoing of some changes made in the Configure Dataset window.
  • Improved import of ZX Lidar data files to avoid date/time ambiguity.
  • Improved import of WindCube Nacelle data files.
  • Made the Statistics by Bin table able to span multiple datasets.

Version 5.0.6 (Oct 27, 2021)

  • Added to In-Situ window a minimum bin count input
  • Fixed bug causing Export window to crash
  • Made Flag Manually window restore its display state
  • Fixed bug causing air density column not to react to changes in its properties
  • Fixed bug causing Initiate Free Trial window to fail in rare circumstances
  • Fixed bug causing blank veer-by-sector table in Wind Shear window
  • Fixed bug where LTA Synthesize Data tab failed to show the original data in the histogram.
  • Fixed bug where LTA window didn't display diurnal profile graph correctly.

Version 5.0.5 (Oct 12, 2021)

  • Improved import of AQ500 and AQ510 data files

Version 5.0.4 (Oct 7, 2021)

  • Improved identification of time zone during import.
  • Improved efficiency of Append Settings window.
  • Fixed bug causing unhelpful error message when license is expired.

Version 5.0.3 (Oct 5, 2021)

  • Fixed bug causing crash when reading some flag rule XML files.
  • Fixed bug causing Tower Distortion window to ignore changes to colocation threshold.
  • Added option to remove seasonal bias from histograms.
  • Added option in time series graphs to show or hide all columns in a dataset.
  • Fixed bug that prevented floating licenses from working.
  • Fixed bug causing Flag by Scatter Plot window to respond incorrectly to changes in axes variables.
  • Added option to EPE export tab to choose between old and new formats.

Version 5.0.2 (Sep 16, 2021)

  • Fixed bug preventing the saving of large windog files.
  • Implemented two-step save process if requested in Options window.
  • Improved Dataset History descriptions of configuration and calibration changes.
  • Improved import logic to accept very short Kintech data files.

Version 5.0.1 (Sep 3, 2021)

  • Fixed bugs in Vertical Extrapolation and LTA windows.
  • Fixed bug preventing identification of measurement height in Vortex LES files.
  • Added XML import and export buttons to the Flag Rule Properties window.
  • Fixed bug causing incomplete reading of flag rule XML files.
  • Made main window remember its window placement.

Version 5.0.0 (Aug 17, 2021)

  • Added ability for a workbook to contain multiple datasets.
  • Allowed display of multiple analysis windows at a time.
  • Added option to undo changes to datasets.
  • Changed to 64-bit programming to handle more data.
  • Added module for in situ comparison of anemometers.

Version 4.2.21 (Mar 22, 2021)

  • Updated EPE export tab to reflect latest guidance from the Brazilian EPE.
  • Added new module to calculate gap fill uncertainty with k-fold cross validation.
  • Improved scatter plot legend to show regression line equation.

Version 4.2.20 (Dec 21, 2020)

  • Added measurement heights and DRR to WindographerMCP Onsite Data summary table.
  • Added 'frequency & energy by sector' display to WindographerMCP Onsite Data tab.
  • Added option to include flag status in time series export files.
  • Added measurement heights and DRR to WindographerMCP Onsite Data summary table.
  • Added 'frequency & energy by sector' display to WindographerMCP Onsite Data tab.

Version 4.2.19 (Sep 9, 2020)

  • Improved logic for identifying date/time data when importing raw data.
  • Fixed bug causing occasional failure to import text files.
  • Added to Export Data window the option to force North American number format.

Version 4.2.18 (Jul 1, 2020)

  • Fixed bug where Representative Year window could not accept date range filter.
  • Allowed import of Openwind MM3.2 files.
  • Added 70th percentile of TI to turbulence-by-speed table to help support IEC 4th ed.

Version 4.2.17 (Jun 3, 2020)

  • Improved Extended Summary report to show 18 sensors in Wind Speed Sensor Summary table.
  • Made MCP algorithm performance test respect the date-range limitation of concurrent data.
  • Fixed bug causing colorless color legends.
  • Fixed bug in Hottel clear sky radiation model that introduced a half-hour time shift.
  • Fixed bug where solar calculations failed to account for the difference between the longitude and the time zone standard meridian.

Version 4.2.16 (Apr 27, 2020)

  • Improved appearance of tables in PDF reports.
  • Added legend placement options to graph properties window.
  • Fixed error causing crash in some circumstances when internet communication fails.

Version 4.2.15 (Feb 28, 2020)

  • Improved Kintech data file import logic.
  • Improved Configure Data Set window to rename child columns automatically with parent column.

Version 4.2.14 (Jan 27, 2020)

  • Added mean of monthly means table to Tables tab.
  • Fixed a bug stopping the process of generating a representative year.

Compare Editions

Can't decide which Editions to pick? We'll help you find the best pick.


Powerful analysis and quality control features

Book A Demo

Data Management

Reads and interprets a huge variety of data files: text, Excel, RLD, RWD, NDF, NSD, STA, WND

Allows appending of new data into an existing data set

Lets you define calculated data columns like ratios, shear exponent, or rotor-equivalent wind speed

Allows you to adjust calibration, combine colocated anemometers, and fill gaps

Extrapolates speed, turbulence, direction, and temperature data to any height

Tracks all modifications you make to the data set

Exports text files, TAB files, and formats required by Openwind, WindSim, Meteodyn WT

Produces standardized formatted reports, which you can save in PDF format

Analysis Features

Allows analysis of turbulence, wind shear, and tower distortion

Lets you define quality control flags and flag data manually based on visual inspection

Allows you to choose from a large library of wind turbines and to compare energy output


Advanced analysis and automated quality control

Book A Demo

Everything in Standard, plus:

Advanced Analysis & Automation

Features an MCP module for correlating with reference data

Allows you to compare multiple data sets graphically

Allows you to automate data flagging using flag rules

Automatically detects and flags the effects of tower shading

Allows analysis of extreme winds , inflow angle, and long term trends

Allows free download of ERA5 and MERRA-2 data

Creates a representative year of hourly data with no gaps


Advanced data management

Book A Demo

Everything in Professional, plus:

DataBase Features

Imports from and exports to any SQL database

Get in Touch

Let us know how we can help.


How can we help?

UL and the UL logo are trademarks of UL LLC © 2022. All rights reserved.