Recent research led by Maidi Rizki from Universitas Andalas has highlighted a promising opportunity for renewable energy generation in West Sumatra, Indonesia, through the gasification of rice husks. As the global demand for energy rises and concerns about fossil fuel depletion grow, this study presents a viable alternative that could significantly contribute to Indonesia’s renewable energy targets.
The research indicates that West Sumatra produced approximately 1.36 million tons of dry unhulled rice in 2021, resulting in about 272,354 tons of rice husks. These husks, which are typically considered agricultural waste, can be converted into synthetic gas using a gasification downdraft method. This process not only addresses waste management but also creates a new energy source. The potential electrical energy generated from this biomass could reach an impressive 118,925 MWh per year, enough to power numerous homes and businesses.
One of the standout findings of this study is the economic efficiency of using biomass gasifiers compared to traditional diesel engines. The research shows that the gasifier can operate continuously for 216 days, with a daily fuel cost of approximately $224.64, compared to $302.23 for a diesel engine. This translates to a 34.5% increase in fuel efficiency, making biomass a more cost-effective energy source.
Rizki emphasizes the significance of this approach, stating, “Energy from vegetable waste is one of the solutions to produce new biomass energy as an alternative to replace fossil fuels.” This sentiment reflects a growing recognition of the need for sustainable energy solutions that leverage local resources.
The implications of this research extend beyond environmental benefits. For local farmers and agricultural sectors, the ability to convert rice husks into energy could create new revenue streams and reduce waste disposal costs. Additionally, businesses in the energy sector may find opportunities in developing and implementing gasification technologies, potentially leading to job creation and economic growth in the region.
This research was published in the Andalasian International Journal of Applied Science, Engineering, and Technology, underscoring its relevance to ongoing discussions about renewable energy strategies in Indonesia. As the country aims for 23% of its energy to come from renewable sources by 2025, innovations like those presented by Rizki and his team will be crucial in meeting these ambitious targets.
