JAKARTA, INDONESIA / RankWire.AI / – The B50 biodiesel program in Indonesia is expected to save approximately 170 trillion rupiah, or US$10.8 billion, in foreign exchange in 2026, according to the Energy and Mineral Resources Ministry. This projection is based on decreased expenditure on imported diesel fuel following the increase of the national blend to 50% biodiesel. The regulation applies to diesel used in transportation, industrial processes, shipping, rail services, and electricity generation. The renewable component is derived from palm oil, while conventional diesel makes up the remaining half. The program replaces a portion of Indonesia’s fossil fuel consumption with domestically produced biofuel.
Indonesia initiated nationwide B50 use on July 1 and officially launched the mandate on July 9 in Karawang, West Java. It succeeded the B40, which mandated a 40% biodiesel share since 2025. B50 comprises equal parts fatty acid methyl ester, or FAME, and petroleum diesel. The increased requirement channels more palm oil into the domestic fuel market. Distributors are permitted to utilize remaining B40 stocks through September while transitioning fully to B50. Prior to the rollout, authorities updated fuel standards and distribution strategies.
The foreign exchange savings attributed to B40 was Rp133.3 trillion, according to the Energy and Mineral Resources Ministry. The B50 estimate raises that figure to Rp170 trillion for 2026. Officials also anticipate the mandate will reduce fossil diesel consumption by roughly 4 million kilolitres. Pertamina has been designated to oversee blending operations and support fuel distribution nationwide. The company also manages storage and supply logistics for regions participating in the program. The implementation involves technical standards for production, transportation, and retail distribution.
B50 Policy Boosts Domestic Biodiesel Consumption
Indonesia projects that B50 will require between 16.7 million and 18 million kilolitres of biodiesel, surpassing the 15.64 million kilolitres allocated under the B40 program for 2026. The mandate is also expected to utilize an estimated 15.2 million to 16.3 million tonnes of crude palm oil. These quantities will serve sectors including road transport, industrial machinery, maritime shipping, railways, and power plants. The volume estimates are based on projected national demand under the new blend ratio.
The government’s forecast indicates an added value of Rp23.49 trillion for Indonesia’s palm oil sector. It also estimates that around 2.1 million jobs across farming, processing, logistics, and fuel supply will be supported by the B50 policy. Additionally, officials believe that the higher blend could cut carbon dioxide emissions by as much as 44.46 million tonnes, compared to the B40 estimate of 39.66 million tonnes. These figures are part of the ministry’s comprehensive assessment of the impact of the increased biodiesel mandate across the country.
Pre-National B50 Trials Confirm Fuel Compatibility
Prior to the nationwide rollout, the government conducted extensive testing of B50 in cars, trucks, mining equipment, agricultural machinery, trains, ships, and power plants. The tests for lighter vehicles covered 50,000 kilometres, while heavier vehicles underwent testing over 40,000 kilometres. Mining machinery operated for approximately 1,000 hours without significant engine issues related to fuel quality. The ministry confirmed that the tested fuel met government standards and manufacturers’ technical specifications. These trials were completed before the official launch of B50 in July.
Indonesia has progressively increased its biodiesel requirement since the introduction of B2.5 in 2008. The country moved to B10 in 2013, B20 in 2018, B30 in 2020, B35 in 2023, and B40 in 2025. The B50 mandate is the latest step in this phased approach. Each stage involved modifications to fuel standards, production capacity, storage, and distribution infrastructure. The 2026 program now mandates an equal share of biodiesel and conventional diesel within the national fuel supply.