Potential development biomass power generation in Bali

Abstract

Fulfilling Bali's electricity supply independently, it is crucial to increase the power generation capacity to reduce supply dependence from The Jamali. Until now, the electricity supply for Bali Province has been obtaining from The Jamali electricity system, delivered through a submarine cable. Bali's electricity consumption reaches 5,032 GWh, with a supply share from The Jamali of 36.9% and local power plants of 63.1%. In this study, the sharing of local power plants will increase to 72.6% in 2038. Bali's Provincial Government promotes the use of 100% renewable energy sources to meet Bali's electricity needs independently. The dominant type of fuel used is biomass. Biomass-based energy is low CO2 emissions, fulfils aspects of sustainability, and contributes to reducing carbon emissions. It is in line with the Paris Agreement targets, supported by several regulations related to the development of renewable energy sources that have been stipulated by the Governments. However, the potential capacity of biomass power plants in Bali is only limited to 147 MW. A possible approach is to obtain it from other regions through regional development plans. South Kalimantan is an area that has an enormous potential land to support biomass plantation, which is estimated to reach 1,266 MW. In this study, analytical research or a feasibility study is to identify potential sources of renewable energy, such as Anthocephalus cadamba (jabon), Gmelina Arborea (jati putih), Samanea saman (trembesi). These plants have the potential to be planted in South Kalimantan. The type of technology that may be suitable for Bali's biomass power plant is fluidized bed technology, as it has higher conversion efficiency and needs less area for biomass plantation. The identified land area that may develop for biomass plantation in South Kalimantan is around 175,600 ha. Meanwhile, the land area demand for biomass plantation for the Bali power plant is 100,000 ha to 171,000 ha with the fluidized bed technology utilizing Anthocephalus cadamba (jabon). The South Kalimantan unused lands and former mines would be sufficient to be used as a biomass plantation area for the Bali power plant with fluidized bed technology utilize Anthocephalus cadamba (jabon).