Downloads Binary releases

Requirements:

A personal computer running either Microsoft Windows of Ubuntu Linux. If you have a choice, choose a 64 bit operating system.

Ideal hardware: dual quad-core or i7 9xx CPU; 4Gb or more; a good graphics card - I test on nVidia 8000 series and above but any modern dedicated graphics card should be fine.

Latest Test Executable

• Windows XP/Vista/Windows 7 executable (32 bit) openWind Executable  
• Windows XP/Vista/Windows 7 executable (64 bit) openWind 64bit Executable
  
• Ubuntu 8.10 executable (64 bit) openWind 64bit Executable
  

Change-log for version 00.08.00.0437 - February 11th, 2010

• rewritten Impact class to improve multi-threaded performance
• improved performance of noise model
• fixed curvature of earth
• fixed optimisation with respect to environmental sensor layers
• fixed Google Earth export for southern hemisphere
• fixed adjust to mast
• added option to adjust probabilities in adjust to mast (prefs)
  
• changed recreate display layers to take account of TAB files
• improved reporting
• added wind rose cursor for browsing wind maps (prefs)
• fixed validity behaviour for raster layers
  

Change-log for version 00.08.00.0381 - November 28th, 2009

• Fixed openWind Windmap layers not reloading from workbooks when a child of another layer
• Added support for displaying directional information
• Added support for Inflow Angles as a data type
• Added calculation of RIX from terrain layers
• Added very rough inflow angle calculation for terrain layers
• Reworked energy losses
• Added array energy as distinct from gross/net energy in report and loss calculation
• Added child logic and validity checking to Windmap Layer
  
• Other small fixes

Known issue: A-weighting incorrect in octave spreading noise model. Working on a fix.


Change-log for version 00.07.00.0333 - October 18th, 2009

• Reworked environmental sensors to obey layer hierarchy rules
• Fixed horizontal visual impact limit
• Noise reporting
• Visual impact reporting
• Added abstract base class, Impact, to act as base for Noise, ZVI and ShadowFlicker
• Reworked ZVI, Noise and ShadowFlicker to make full use of Impact class
  

Change-log for version 00.07.00.0324 - October 15th, 2009

• Fixed per-turbine capacity factor in text report.
• Removed direct communication between worker threads and interface thread.
• Started reworking environmental impact classes
  

Change-log for version 00.07.00.0322 - October 13th, 2009

• Fixed inter-version compatibility which was causing crash on load for standard version.
  

Change-log for version 00.07.00.0321 - October 12th, 2009

• Added input power curves to report
• Enabled Adjust To Masts
• Turned off proximity checking and legality checking for fixed turbines
• Fixed ASCII surfer grid loading
  
• Stickied (finally) the default turbine type for a site
• Added TI losses to saved report (was only in on-screen report)
• Added WasP MAP files to vector types. Still need to add code to interpret roughness lines.
• Made all layouts growable (not just the first one)
• Added option to choose which layouts get grown by optimiser (site properties)
• Fixed label fonts (italic, strikeout, bold, underline)
• No longer save turbine energy capture results to file resulting in smaller workbooks
• Corrupted WRG references get fixed on loading now.
• Added read function for gridded RSFs (WindPro)
• Made WRG reading more robust in face of disordered x and y
• Added reading and writing of ASCII XYZ grid files
• Added option to switch off perturbation line drawing in optimiser options
  

Change-log for version 00.07.00.0310 - September 18th, 2009

• Manual turbine renumbering
• GIF support
• Create fake met masts by right double-clicking on a WRG
• Create windmaps from WRGs (right-click menu)
  
• Disable and enable site layers from right-click menu or properties
  
• Improved multithreading in energy capture (8 threads)
• Improved precision for autsaved turbine layouts
• Windmap errors changed to warnings (now always completes)
  
• Numerous little bug-fixes
• Removed saving of detailed energy capture results in workbook
• Improved reporting
• Faster eddy-viscosity wake model using solution provided by Dr. Mike Anderson of RES
  
• Improved ASCII GRD support

Change-log for version 00.07.00.247 - May 1st, 2009

• Increased support for Surfer grid files (ASCII and binary)
  
• Improved vector polygon drawing to avoid "hourglass" effect
• Added graphing support for vector attributes
• Added double-click to identify vector objects
• Improved drag-and-drop behaviour to include folders
• Added energy capture settings to report
• Removed details from default report
• Disabled post-process scaling by total probability in energy capture
• Added "set-all" capability to child logic dialog
• Fixed default turbine type in Site Layer properties
• Lowered lower limit for hub height in turbine type dialog
• Added Enercon turbines as default turbine types (thanks to Enercon for sharing)
  
• Removed support for tonal noise in turbine type (can't find a reference to it in ISO 9613)
• Fixed multithreaded energy capture with Eddy Viscosity wake model
  

Outstanding Issues:
Possible memory leak when loading Geotiffs


Change-log for version 00.07.00.229 - March 13th, 2009

•  Added support for new WRB file format - please contact us if you want to support this format.
•  Added support for masked WRGs (from WAsP)
•  Added import for GeoTIFFs
•  Added new folder layer for organising layers
•  Added Environmentally Sensitive point layer
•  Added mass-conservation windflow model - please use with care!
•  Added visual impact as fraction of horizon in degrees
•  Fixed optimiser so that large layout perturbation time is no longer proportional N! (much faster)
•  Removed 10% wake loss limit when growing layouts (now set at 50%)
•  Numerous other small fixes
•  Added optimisation with respect to visual impact
•  Added ISO9613 noise model
•  Added optimisation with respect to noise limits
•  Changed TurbineType dialog to load turbines from file as new turbines rather than overwriting the current turbine
•  Added abstract base class for layers containing WRGs
•  Added Grid4d structure
•  Added KML camera output for viewpoints
•  Added autosave feature to safeguard long optimisations.
•  Added "Open Entire Directory" menu item for windNavigator deliverables.
•  Added unvalidated displacement height option to windflow model - please use with care!
•  Added drag and drop for files

Outstanding Issues:
Possible memory leak when loading Geotiffs



Changes in version 00.06.00.0184 - December 19th, 2008

• Fixed compatibility problems with MINGW and other flavours of *nix
• Added Eddy Viscosity model based on Ainslie 1988.
• Improved turbulence intensity calculations.
• Numerous minor fixes
  

Changes in version 00.06.00.0151 - November 9th, 2008

• Fixed elipse packing in optimiser
• Fixed crash on new TurbineType
• Linux and Windows workbooks are now interchangeable
• Smaller workbook size
  

Changes in version 00.06.00.0138 - October 17th, 2008

• Fixed export to ESRI Shape
• Fixed crash on layer properties
• Fixed attribute editing
• Removed Linux lock-up due to DrawPerturbations function
  
• Numerous other small fixes
• Fixed compatibility between 32 and 64 bit version workbooks
  

Current Issues in version 00.06.00.0138 - October 17th, 2008

• Need to press New between loading workbooks
• Linux and Windows workbook versions not compatible
  

Changes in version 00.01.00.0125

• Addition of raster arithmetic operations
  
• Added Google Earth model selection to Turbine Type interface
• Added model repository at models.awsopenwind.org/models
• Added ability to browse for model repositories
• Added ability to use raster layers as energy loss percentages (environmental losses such as icing)
• Various GUI improvements
  
• Improved reporting
• Added ESRI binary grid import (fine for floating point grids - not quite working for integer coverages)
• Added BIL import (both the official version supported by the US government and the strange ESRI version)
• Improved image drawing
• Future-proofing for document file format.

Current issues include turbulence intensity: we are still working to get this right so don't take openWind's numbers seriously just yet.


Changes in version 00.01.00.0111

• Added left button double-click to activate layer properties
• Improved memory management
• Added Energy Losses
• Added energy losses due Turbulence Intensity per direction
• Added TI@15m/s to reports
  
• Added  Escape key for potentially lengthy calculations
• Added grid shape to raster conversion
• Fixed Image layer to Raster layer conversion multi-threading (see below)
• Fixed raster export to Google Earth and added auto-generated legends
• Added auto-generated legends to raster output as image
• Various cosmetic improvements to interface
• Added support for *.TFW and *.JGW world files

This the the latest test executable for Windows XP.

This executable is not backwards compatible with old workbooks. If you need to run optimisations with significantly more than 1000 turbines, please contact me for advice on how to avoid crashing through the 2GB memory limit for 32bit Windows.

Changes in version 00.01.00.0096 include:

• Added auto-generated legend when you export a raster.
• Improved rainbow colour scheme to have more yellow and cyan and less green and navy blue.
  
• Fixed occasional over-zealous check when comparing energy capture to sum of turbines energy capture.
• Disabled multi-threading when creating a raster from an image as this was causing a bizarre crash due to the image object becoming corrupted. Hopefully we will be able to re-enable this at some point in the near future.
• Improved the contour to raster algorithm to be able to deal with large expanses of water. All anomalies now appear to be less than the contour interval.
• Added imperial foot to units in vector properties options for defining exclusion zones.
• Improved reporting of energy capture results.
  
• Added support for Linux although an issue with multi-threading is delaying the release of a Linux executable.

Changes in version 00.01.00.0091 include:

• Fixed edit mode on newly created layer
  
• Reworked memory management for Rasters and Turbines to be more efficient and allow 1000 turbine optimisations and energy captures
  
• Added new logo
  
• Added stopping conditions to the optimiser (see Settings->Optimiser Options)
  
• Added dynamic layout growth to optimiser (see Settings->Optimiser Options)
  
• Added Save button
• Added limited multithreading to energy capture routine for large (>300 turbine) layouts
  

Version 00.01.00.0081
Its a very early stage alpha release  which would normally be kept in-house. However, as we're intending to launch this as an open source project, why keep all the pain to ourselves. Please let us know how (and if) it works for you by posting your experiences and questions in the forums on this site.

At present, known issues are:

• Turbulence Intensity - this has been based on equations described in Ervin Bossanyi's "Wind Energy Handbook" but so far is completely unvalidated by us.

Please check back regularly for updated executables or keep an eye on the forums where new versions will be announced.