Strategic Design

During the strategic design, energy modeling allows those involved in the design process to optimize their focus on the most promising energy-saving strategies. For example, in office buildings, the heating overall is a small portion of the energy bill, so the focus should shift to cooling and lighting.

It is advisable to look at different methods that reduce cooling loads. The two largest components of the cooling load are the solar energy gain (through the windows and skylights) and the heat gain from electrical lighting.

The strategies to examine may include: a different building orientation, daylight saving time, more energy efficient lighting, appropriate lighting levels and better lighting controls as well as glazing with a lower solar heat gain coefficient (SHGC), and an external/internal shading for glazing.