The CalBio — 4Creeks team is an ideal partner for California dairies interested in digester projects. We bring together digester development and dairy expertise to create successful digester projects that integrate with milking operations. 4Creeks Dairy knowledge comes from serving local dairy facilities in the San Joaquin Valley. CalBio’s background in business and years of work on state policies help us utilize important programs needed to support project economics. Our ongoing professional operation creates a reliable source of value for the dairy while letting the dairy stay focused on milking operations, not energy generation.
In all projects we create a new revenue stream, and we also focus on decreasing farmer costs. For example, at the Carlos Echeverria & Sons Dairy (recipient of 2015 CEC and CDFA grants) CalBio is utilizing electricity-engine waste heat to cool milk – with the goal to save over $100,000 a year. We are also focused on bedding management to decrease this ongoing dairy cost.
Manure, Water and Nutrient Management
CalBio and 4-Creeks design projects looking at the near-term and long-term nutrient and water issues of each dairy. Digester designs reflect whether a dairy is currently land-constrained or may need to reduce double cropping over time. Digestion improves manure water streams compared to standard dairy practice. It increases the conversion of nitrogen to a plant absorbable form. Digestion also is an improvement over lagoon manure water for drip irrigation.
In certain situations, co-digestion, using additional feedstocks to supplement manure, can increase gas productions and revenues.