We'll look at how much anaerobic digestion costs in general in this article.
We also go over other basic rules of thumb to assist folks who are trying to figure out how much a biogas digester will cost in our main article here.
Capital Expense
Depending on the size of the facility and the technology employed, a commercial microbial anaerobic digester can cost anywhere from $400,000 to $5,000,000 to develop. An anaerobic digestion plant on a farm costs about $1.2 million dollars on average.
Operating Costs
In 2022, a medium-sized commercial on-farm digester with 250 cows will cost around $0.30 to run all-in. Electricity sales will bring in around half of that.
Upgrading to biomethane raises costs, but in the appropriate circumstances, it can pay for itself.
Profitability in power generating is dependent on additional revenue from sources such as:
Entrance fees
- Subsidies from the government
- Sales of digestate as a natural fertiliser (liquid and fibre), bedding material (fibre), and insulating product (fibre)
- On-farm or through delivery to a local greenhouse, business, or housing complex, combined heat and power (CHP) is used for home heating.
It is often possible to assure the profitability of a biogas plant by creative thinking and even by coming up with a unique "out-of-the-box" solution.
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