Taiwan farm converts waste into biomass fuel, boosting energy resilience

Taitung Farm, managed by Taiwan's Veterans Affairs Council, has unveiled a new biomass energy demonstration site designed to transform agricultural and forestry waste into valuable fuel. The 15-year operating rights have been awarded to Yingdi Enterprise, a company with over a decade of experience in biomass fuel.

The facility, located in Chishang Township, will process pruned branches from fruit trees, residue from Chinese fir logging, and driftwood into wood pellet fuel. Yingdi Enterprise plans to integrate a containerized micro-biomass power generation system, offering a backup power option for disaster prevention in remote areas and bolstering national energy resilience.

According to Yingdi Enterprise's presentation, the process involves crushing agricultural and forestry waste and then compressing it under high temperature and pressure without any adhesives. The natural lignin released from the wood binds the material, increasing its volume by four times. This method also removes moisture and reduces the risk of insect infestation. The raw materials are strictly limited to natural forest pruning or untreated wood; processed materials like wood pallets or construction waste are excluded due to potential chemical contamination.

The company estimates that this biomass pellet production process has a carbon equivalent close to zero, achieving approximately a 97% reduction in carbon emissions compared to coal and natural gas. While the production cost is about 20% higher than coal, it is 20% lower than natural gas. The project also prioritizes hiring local residents and veterans' families.

In terms of application, Yingdi plans to import technology for a containerized micro-power generation system. This system integrates pellet boilers, gasification power modules, solar power, and energy storage, functioning like a "plug-and-play" large biomass battery capable of independent operation during power outages. The system can generate electricity and hot water, with a single unit producing about 11 kilowatts. A 800kg bag of pellets can sustain operation for about four months. This localized fuel source offers an advantage over diesel generators, reducing vulnerability to external tracking and supply disruptions. The system can also be networked for increased output.

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The significance of pelletizing is to standardize the energy density. Taiwan does not have a single source of raw material to supply its needs year-round, so mixing materials is inevitable. The more local the fuel, the more dispersed the risk of energy tracking and supply disruption.