Patterns of façade system design for enhanced energy performance of multistory buildings

The results indicate that although deviation from the basic flat façade leads generally to an increase in heating load, this is counterbalanced by a reduction in cooling load, and a considerable increase in energy generation potential from façade integrated photovoltaic systems. The position of fold and the depth of the cavity have a significant effect on thermal load and energy generation potential. Under the studied climatic conditions (Calgary, Alberta, Canada - 52°N), The total annual electricity generation potential, by the multifold configurations can exceed that of the flat façade by up to 80%. The increase in total electricity generation potential of some designed configurations is accompanied by an increase in time spread of functional electricity over extended period of time. Multifold façade configurations that combine east and west orientations can provide a peak spread of some 4-5 hours.