Allowing more natural light to enter Bldgs will help reduce energy costs significantly. Installing skylights durable enough to withstand local weather in key common locations such as hallways, waiting areas, conference rooms, auditoriums, etc., will save the DoD millions in energy costs while maximizing mother nature's power. We see this in homes, large corporations, airports, etc, and it works. Corporations have invested millions into saving costs and this seems to be a common solution to cutting energy costs. Additionally installing, top of the line windows designed to reflect heat will greatly reduce the cost of electricity indoors to keep the bldgs comfortable.