HDR’s engineering design and construction services include subcontracting, procurement and startup operations. The Heartland Biogas project was developed by AgEnergy USA. EDF Renewable Energy, the owner of the project, participated in late stage development activities.
The organic wastes or feedstock include cow manure from local dairy operations and other organic wastes or "substrate" from the Denver metropolitan area, such as restaurant grease trap waste, spoiled products from retail grocers and food processing residuals. The waste conversion process will preclude the release of pollutants to the environment and will reduce the emission of significant amounts of greenhouse gas to the atmosphere. The digester facility will produce three major outputs, including a renewable natural gas, organic compost amendment and liquid soil amendment products.
The Heartland digester facility is expected to be fully operational in 2015 and capable of exporting 1.5 billion cubic feet (BCF) of renewable natural gas annually, making it one of the largest anaerobic digester facilities in North America. Construction started in August 2013.
