Buying the software

The latest PHribbon software can be downloaded below. Please check your computer meets minimum requirements: it is suitable for PC’s only, using Microsoft Office 2010 or later with PHPP v9.6. PHPP previous versions from 9.1 to 9.3 are also supported, please ask if you need these versions. The Passivhaus institute provides a free upgrade from early versions of 9 to version 9.6.

The software can be downloaded using the link below and you will need a licence key to use it on your computer. To buy a licence key please open the please open FindSerialNum spreadsheet and press the button. This just looks for a unique code on your computer. Please email with the 4 digit number it gives and the options you would like:

  • Required base module: Build PHPP tools 1-5, Energy of Variants 7 and libraries 12, 13 (£45)
  • Indicative costs for retrofits, Simple, Variants and Step by Step (£30)
  • International version (no extra charge, user to provide local costs)
  • Daylight factor (£75)
  • Embodied CO2 (£20)



You may need to enable macros for that spreadsheet, a similar process for the PHribbon software. There is more info about macros in the first section of the help below. Enter the licence key in the install tab, cell C13, this key is unique to that computer. If you need to update in the future, that’s OK. The software is comprised of the following files (links to this page direct to our secure https address for security):
PHribbon v1.36
RibbonHelp v1.36
Report House Price Increase
(an additional Daylight Factor master will be sent upon purchase of that option)

Training Videos for v1.36
Build PHPP (10 mins)
Build PHPP with variants (advanced)

Daylight Factor
Mark Siddall’s training for his daylight factor spreadsheet

Embodied CO2
Embodied CO2 with variants (advanced)

Retrofit Costs (24 mins)
Retrofit Costs with variants (advanced)

Licence Agreement Terms and Conditions

By using this software you agree to these terms:

  • Users may not redistribute the PHribbon spreadsheet, or repackage it free of charge or otherwise.
  • The software has been rigorously tested and great care has been taken to ensure there are no errors, however not every situation in which PHPP can be used can be foreseen, therefore checks for costs are still recommended. Any mistakes found will be corrected free of charge and all users updated. The user is responsible for checking the figures, especially in circumstances where they are critical. In extreme circumstances the maximum compensation will be a refund of the price paid for the software. By using this software you agree that no legal claim can be made against the AECB nor Tim Martel.
  • Costs provided are indicative only and are the best information available to the author. By their very nature they are variable according to location, supplier and quantity. They serve only as a starting point and can be updated at any time either for one project (i.e. changing the figure in the costs tab in the PHPP) or by changing the master table for all future projects in the PHribbon spreadsheet.
  • The price of the software includes a short software manual. For the quickest way to learn we highly recommend training, though this is an extra cost. Minor updates may be available from time to time free of charge. Revisions of the thermal bridge library and various other libraries will be made available if funds from sales allow.