One goal of South Waterfront is to create buildings that produce more energy than they consume. If you walk by the Aerial Tram or visit the OHSU CHH, you will see a series of exterior sunshades on the south side of the building. These shades are also solar panels that generate approximately 60,000 Wh of electricity each year. On the 15th and 16th floors there is an innovative energy-saving feature called a solar Trombe Wall that preheats the building’s hot water. The 6,000 square foot Trombe Wall and solar panels save 36 tons of CO2 emissions from entering the atmosphere each year. That’s the equivalent of 407 cars every year.