Connecting, Nurturing, Creating for Sustainable Environment

Energy Efficient Retrofits Guide: Download


The Retrofit Calculator manual, FAQs and assumptions can be found in Section 3 of our Guide. Please note that the Calculator aims to provide users with approximate performances of different upgrade options for a general overview and comparative purposes, and not exact figures.

We do not and will never collect any buildings data inputted into our Retrofit Calculator. The Calculator is solely operated on the client-side and does not require internet connection to operate. 

We would be very grateful if you can provide your feedback - to help us better improve the Guide and Retrofit Calculator - in the google form 
or contact Mr Wayne Wong (E: | T: 2784 3955)


A Guide to Energy Efficient Retrofits of Office and Hotel Buildings

Full Guide

Introduction Booklet


Retrofit Calculators

Office Version

Hotel Version






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