This dairy farm produces dairy products, particularly milk, for American markets. The farm uses strictly cow manure to produce energy using a digester. The herd size is roughly 3,550 cows. The farm’s digester system has been operating since 2012, capturing biogas to power a 1 MW genset. The electricity produced was utilized by the farm with excess being sold to the local utility.  

MCR was contracted to refurbish the biogas system and install Renewable Natural Gas (RNG) upgrading equipment.  This high quality RNG may be used for heating or transportation purposes.

The digester captures, extracts and cleans the methane from dairy manure and converts it into RNG, which is injected into a nearby gas pipeline for distribution.

This project is part of a three-farm RNG system cluster and collectively the three farms generate about 189,000 million British thermal units (MMBtu) of RNG each year. 

RNG production: 243 MMBtus/day

MCR Work Order Approval: October 2020

MCR Start Up and Commissioning: September 2021

Original anaerobic digester: 2012

Digester system type: 

Mixed Plug Flow


Dairy manure

Engine-generator set: 1000 kW Guascor CHP unit