C/S hired an independent engineering firm to model the energy and capital cost savings that an owner would achieve by using C/S Controllable Sunshades on a ten story building in Dallas and four other cities throughout the U.S. and Canada. The test building’s facade includes standard double glazed low-E glass on all elevations. The results of the computer model in the chart above show the energy usage/savings with and without C/S Controllable Sunshades. The engineering firm utilized a recognized building modeling program.
The C/S external controllable solar shading system substantially reduces both the capital cost of plant and the associated running costs for air conditioning. A 21.1% reduction in the annual cooling energy demand (MWhrs) is achieved which translates into a savings of $137,160 per annum.