Cargill Adds Second Dairy Farm Methane-to-Power Digester
An anaerobic digester on an Idaho dairy farm is helping convert manure from 6,000 cattle into about a million kilowatt hours of electricity every month, according to Environmental Protection.
This is Cargill’s second such plant. The first has been operating since 2008 at another area dairy plant. Both of the dairies are operated in Idaho by Bettencourt Dairy.
The digester works by putting the manure into a massive, sealed, in-ground vessel that is free from oxygen. Bacteria in the mix anaerobically break down the manure into methane gas, which is captured and burned in generators.
Cargill sells the electricity to the grid, according to FinChannel.
Last year, Cargill registered and sold 400,000 tons of emission offsets from an Alberta beef operation through the Canadian Standards Association.
Those offsets come from a wastewater treatment system at Cargill’s plant in High River, Alberta, which capture methane from the plant’s wastewater lagoons for fuel. As a result, the system uses 25 percent less natural gas.
Similarly, Cargill plans to generate and sell emissions offsets from its Idaho dairy methane plants.
The first Idaho dairy plant is expected to produce about 1.3 million kWh of electricity a month, and Cargill is trying to sell 28,000 tons of emission offsets related to that project.
Stay Up-to-Date On Environmental Management, Energy & Sustainability News with EL's Free Daily Newsletter
Energy Manager News
- Energy Storage in the Fast Lane
- Alberta Firm Aims for Energy Neutral Egg Laying Barn
- The Department of Energy Seeks to Improve the Better Buildings Challenge
- Behind the Meter: The Many Advantages of Energy Benchmarking
- Telecommunications Companies Upgrade Their Approaches to Energy
- Cutting Energy Use in Fire Stations
- Revolution Lighting Signs School Districts in NY, NJ
- Green Building Boom Is Pumping Billions into US Economy, Retrofits Are Fueling the Trend