Energy analysis and thermal load simulations can be performed for each building concept in order to optimize the energy performance. The effects of reduced artificial lighting on heating and cooling requirements are taken into account.

Different facade options on building energy use can be evaluated and the consequences of window placement and area, double glazing, blinds, coatings etc. are taken into account.

When performing energy analyses, both interior and exterior heat transfer rates are taken into account within the scope of the building orientation and local weather conditions. This also takes cognisance of solar shading, louvers overhangs and side fins.