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Another U.S. digester makes the switch to CNG
May 26, 2014
By Dairy Herd Management
By Dairy Herd Management
May 26, 2014
By Dairy Herd Management
By Dairy Herd Management
Topics
May 26, 2014, Yakima, WA – Making electricity is not working for George DeRuyter & Sons dairy of Yakima County, Washington.
The 3,150-cow farm will begin work this summer to convert its anaerobic digester to supply a pipeline with compressed natural gas (CNG). To make the change, the farm will need $12 million to install a scrubber to clean the gas to pipeline standards, and will install a new nutrient recovery system.
Dan DeRuyter, who manages the dairy, says the farm built their digester in 2006 at a cost of $3.8 million, hoping to profit from electricity sales and minimize odor – a big concern of area residents. However, power rates soon fell to 3.5 cents per kWh (kilowatt-hour), which is half of what they expected. READ MORE
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