NETL green roof program
Here’s an interesting research program being carried out by the Dept. of Energy, Office of Fossil Energy. The program is researching the use of coal combustion residuals as alternative growing media (read: soil substitutes) for their “green roof” program.
Living roof. Eco-roof. Vegetated roof. Known by a variety of names, green roofs – which are built on top of a conventional roof and are partially or completely covered by vegetation – have been around for thousands of years and are popular in many European countries, especially Switzerland, Sweden, and Germany. Because of their many benefits, including improved energy efficiency and enhanced regional biodiversity, green roofs are becoming increasingly popular in North America. According to the annual Green Roofs for Healthy Cities survey, the green roof industry grew a remarkable 24 percent from 2011 to 2012.
Now, scientists at the Department of Energy’s National Energy Technology Laboratory (NETL) are using green roofs as laboratories to investigate alternative growth media for plants that make use of waste materials generated by the fossil fuel industry.
Click here to read the rest of this DoE update.