According to the present energy situation, the domestic sector accounts for 38% of the national electricity consumption. Most of the contemporary houses utilise massive amounts of natural resources and energy throughout the life cycle. The appropriate climate responsive designs of residences conceptualising the design strategies for energy sustainability and usage of energy efficient appliances could substantially mitigate local and global environmental issues due to reduction of greenhouse gas emissions.
Thus far, the majority of the designs of residences are incapable in responding to the local climate. Design implications which are in conflict with the prevailing climate has resulted in warm interiors which crave for electricity to make interiors cool and comfortable. This trend in residences of varying magnitude has excessively high energy wastage and considerable dependency on thermally generated energy. Thus the introduction and implementation of a guideline for "Sustainable Energy Residence” is of paramount importance.
In addition, the Smart Home initiative focusing on solar PV roof top systems can avoid 139.2 GWh by 2020 and differ a 100 MW capacity in day time grid generation. The net present value of avoided generation for the five year period 2016 – 2020 will be 591 GWh. The levelised cost of energy from these generators will be LKR 21-25 per kWh, when considering a life span of twenty years.
The Residential Building Code can be downloaded here.