Other results, such as annual costs or peak electric load, can also be graphed. In the design development phase, the user further modifies the building description to be consistent with the final building design. Fine-tuning design can be done and design adjustments can be made at this point. In the construction documents phase, the user develops specifications to ensure that each element of the building and each piece of equipment will meet the design parameters assumed in the energy evaluation. Perspective Design is a complex process, involving numerous considerations, many of which conflict.
Energy performance is only one of a host of important issues facing the designer.
A successful design integrates daylighting with passive solar heating and natural cooling to decrease heating, lighting, and cooling loads using conventional materials.