Nowadays, reducing pollution, saving mother Earth had become everyone’s responsibility. However, the great improvement in technologies leads to large energy demands. Many countries have tried to find renewable energy as their alternative energy source. Biomass has become one of the options of alternative energy sources. It has become a potential alternative source for Sarawak. An investigation has been conducted to ensure the suitableness of building a biomass power plant in Sarawak. A comparison of different biomass conversion technologies and biomass raw materials were made to select the most applicable biomass power plants in Sarawak in this article.