Capstone Turbine Corporation (NASDAQ:CPST) announced Monday that the US Patent and Trademark Office has awarded the maker of microturbine-energy systems two new patents.

Green Energy’s initial biogas projects will be developed in six US locations in Idaho, Missouri and North Carolina. Green Energy plans to build out more than 20 projects over three years. And if those projects are successful, Capstone said Green Energy would purchase a total of $53 million of Capstone’s product.

Green Energy, based in Raleigh, makes bio-gas from pig manure, cow manure, and agricultural green waste. The bio-gas is compressed and cleaned before being injected into natural gas pipelines to create renewable natural gas. More >>