Shih An Farm converts livestock manure into biogas and organic liquid fertilizer to generate green electricity and high-efficiency fertilizers, reducing pollution and the use of chemical fertilizers.
Conventional compost methods in traditional livestock farms are prone to odors and mosquito breeding, creating a source of environmental pollution and greenhouse effect. In order to turn the livestock industry from being regarded as a “not in my back yard” (NIMBY) industry, Shih An Farm constructed a renewable energy plant in 2014. This facility, along with eight modern chicken coops, structures a circular development model.
Converting livestock manure and sewage water into biogas and organic liquid fertilizer
Through cooperation with various stakeholders, the daily livestock manure, sewage water, and other wastes from the farm are processed through an anaerobic fermentation process (input → output → biogas collection → green electricity and organic liquid fertilizer generation → reuse).
The farm utilizes the renewable energy produced daily for its own needs. The organic liquid generated is rich in nitrogen, phosphorus, potassium, and various micronutrients, serving as both primary and supplementary fertilizer for crops. This fertilizer promotes prolonged soil fertility and enhances crop quality while reducing chemical fertilizer dependency. In 2024, in partnership with agricultural associations, Shih An Farm extended its efforts by introducing an organic liquid fertilizer irrigation demonstration area. They offered free liquid fertilizer to assist local farmers in efficiently irrigating.
Benefits
- It generates 16,800 kWh of electricity daily, totaling 27,179,970 kWh of green energy from 2015 to 2023.
- In 2022, it secured its first Biomass Renewable Energy Certificate from the National Renewable Energy Certification Center, and by March 2024, over 2,000 green energy certificates have been sold.
- Annually, it yields about 30,000 tons of liquid organic fertilizer and became the first in the industry to receive certification for liquid organic fertilizer in the country.