In Georgia, the Hickory Ridge landfill is going to be converted into one of the largest solar power plants in the state. The landfill will be covered with an unusually tough liner, and solar panels will be added on top of that. The panels are less than a quarter of an inch thick and flexible. The reason the panels need to be flexible is that the landfill underneath them will most likely move slightly as it settles. The liner and panels will be sort of a cap on the landfill. The solar system will generate enough electricity to power about 400 homes.
“It’s a landfill closure system that maintains the gas inside, keeps the water out and produces renewable energy. And it’s very economical for us,” said the landfill’s engineering manager Tony Walker. (Source: Atlanta Journal-Constitution)
Carlisle Energy Services in Pennsylvania designed the system. They specialize in single-ply membrane roofing systems. “These membranes have proven their performance, durability and longevity and are ideal for use in capping landfills. By combining Carlisle’s superior membrane products with flexible solar laminates, the SpectroPowerCap product is a cost-effective way to deploy renewable energy and cap a landfill with a single product,” said Geoff Slevin of Carlisle Energy Services. (Source: Republic Services)
The solar panel cap on the landfill will use dark panels so they don’t reflect light back at pilots who are using the nearby airport. Walter Brown, chairman of the Georgia Solar Energy Association said, “This enormous solar project will be visible from the air to passengers arriving at Hartsfield-Jackson International Airport and will become well known to Georgians looking for clean energy solutions for our future prosperity.” (Source: Southern Political Report)
Image Credit: Georgia Solar Energy Association