PHINZ is currently updating our software purchase process.   Please bear with us – there may be a short delay in communications regarding your purchase.

The PHPP & DesignPH are easy to use planning (design) tools for energy efficiency for the use of architects and design professionals. Some training is required to use the software including an understanding of the assumptions and methodologies that underpin the modelling method.

PHPP is spreadsheet-based (Microsoft Excel or Open LibreOffice), designPH is a plugin for Sketchup.

Note: please apply your membership coupon code to the shopping cart to access discount pricing.
For any membership discount code issues,  please contact us at


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