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Green School Bio Bus

place Indonesia

Green School Bio Bus, the Indonesia first 100% biofueled program and is an integration of transportation, education, and social activism.

Bio Bus addresses transportation and waste problems in Bali through education and community mobilization. It's mission is to provide sustainable transport services to Green School and the local communities by offering sustainable transportation, solutions to health and waste problems around used cooking oil by converting it into biodiesel, and deliver real world, integrated learning to the youth.

HundrED 2020


HundrED has selected this innovation to

HundrED 2020

Web presence






May 2019
Bio Bus aims to transform transportation in Bali and inspire the world to live sustainably and educate dynamically.

About the innovation

Greening Bali: On The Move to Zero Waste

Green School Bio Bus (BB), the first 100% biofueled program in Indonesia and is an innovative integration of transportation, education, and community that strives to provide sustainable solutions.

In January 2015, the graduating class of Green School (GS) conceived the idea of a “Bio Bus” as their legacy service project. In less than a year, BB evolved from a student-brainstorming project into a social enterprise taking action to solve environmental problems.

Why we do it

Our mission is to provide sustainable transport services to GS and the local communities by offering sustainable transportation, solutions to health and waste problems around used cooking oil by converting it into biodiesel, and deliver real-world, integrated learning to the youth.

Transportation - Indonesia is one of the world’s most populated countries with 266 million citizens, and rapidly continues to grow and develop. Particularly in Bali, it has become common practice for families to own a vehicle. According to the Jakarta Post in 2012, “The annual growth of private vehicle ownership is 12 percent, while the island’s road network is expanding by 2.28 per year”.  On this small island, without a sufficient public transportation system with over 4 million residents and 7 million annual tourists, traffic and air pollution are significant concerns. Even at GS, since 2008, the community has been challenged to achieve sustainable transportation. While impacts are significantly improved with the introduction of the BB System, a recent GS student study revealed an average of only 1.7 students/vehicle.

Waste - Used Cooking Oil (UCO) practices are unregulated in Indonesia.  Consequently, black market economics and poor waste removal erode health and environment. UCO is often used well beyond expiry and bleached or pumped with chemicals before reselling to eateries. This food contains carcinogens and has been linked to pulmonary disease. Furthermore, due to limited waste management, river ways are often the final destination for UCO.  Dumping UCO causes acidification and affects Bali’s watersheds.  Polluted water threatens irrigation for growing staple foods and stresses coral reef ecosystems.  

Education - There is a scarcity of educational programs that truly challenge the learning paradigm to offer real-world, solution-based learning with measurable outcomes.  Furthermore, it is rare that international and local students get to learn and work with local organizations in a reciprocal and empowered manner. BB authentically fulfills the 21st Century skills and seeks to create a ripple effect. 

How we do it

Transportation - BB works closely with nonprofit, Lengis Hijau to convert donated UCO into biodiesel for sustainable transport and spread awareness on the health and environmental hazards. Each month the BB uses the 9 buses to save 8 tons of CO2 from being released into the atmosphere, offers 4,000+ rides and reduces the number of vehicles on the road by 1,750.

Waste - BB integrates with industry and community through a social and environmental donorship program.  GS and local students, the “Grease Police” engage various stakeholders to collect UCO and break the black market. To incentivize participation, BB provides a certificate and offers hand-made Bio Soap made from filtered UCO.  More than 40 entities including hotels, restaurants, schools, and households around Bali donate their UCO to BB. BB collects 2,000 liters/mo of UCO.  

Education - BB uses GS mission and REAL Learning Principles to have developed a holistic model that incorporates math, chemistry, biology, enterprise, programming, and activism. BB has written the curriculum for five, 6-week modules where students receive academic credit with a focus on renewable energy.  Additionally, a year-long service program is available for students to work on special projects with community members and collect UCO. These programs have given birth to numerous notable developments, including: (1) Indonesia’s first biodiesel public pump station (2) Bio Bike, a 100% upcycled biodiesel motorcycle, and (3) Bio Bensin, organic fuel made up from food waste. Lastly, BB provides weekly workshops for the community and GS visitors and consistently reaches out to local schools, universities, NGOs and a broader circle to promote renewable energy.

Impact & scalability

Academy review results
High Impact
Low Scalability
High Impact
High Scalability
Low Impact
Low Scalability
Low Impact
High Scalability
Read more about our selection process


I Failed My Quest | Nova | Quest Presentation 2019 | Green School Bali
Dirty into Beauty | Yuka | Quest Presentation 2018 | Green School Bali
Green School Bio Bus
Jelantah tak sekadar limbah
The Bio Bus
Begini Semangat Pelajar Mengubah Jelantah Jadi Biodiesel
Smells like fried chicken on wheels
Green School Bali report on TF1
Greening Bali with Biodiesel
How used cooking oil powers a school bus in Bali | Kyla Langostky and Maxwell Hidajat | TEDxUbud
Green School Bio Bus on Instagram: “Education is central to a shift in current polluting practices and unsustainable habits. Green School has used rich real-world learning…”
Green School Bio Bus on Instagram: “#BioBus try to cut off the black market of used cooking oil by converting it to biodiesel. But behind that, there are some unsung heroes…”
Indonesia First Biodiesel Pump Station
In 2016, Bio Bus set up the first biodiesel public pump station in Indonesia and inaugurated by the regent of Badung district, I Nyoman Giri Prasta. That was the day of our big frog leap to extend the impact of Bio Bus opened for public, grab the attention of the government, and improving our service. Powered by the solar panel, this pump station is delivered by the student project supported by some experts. Come over to our biodiesel pump station at Green School, and purchase the 100% pure biodiesel for only 10.000 IDR ($ 0,8) per liter!
Grease Police
Bio Bus is a student-initiated project and from every part of the run of this enterprise, students always play an important role. The Grease Police are one of hands-on learning that designed to give exposure to the student on how to shift the awareness of used cooking oil pollution and engage local restaurants and hotels to cut off the used cooking oil black market that is so huge issue in Indonesia. This not-so-scary police will patrol to local food trucks, restaurants, and hotels to gather the gross oil. And within a month, Bio Bus could collect around 2000 liter of used cooking oil.
Education Shift
Bio Bus believes that the change started by transforming the grassroots problem, and the way to prompt that is on education shift. Not only provide classes for Green SchoolBali students only, BioBus also try to nurture the local community by giving the workshop for utilizing the used cooking oil and the peril of gross oil pollution. On every Friday, our space in Green School Innovation Hub is open for everyone who seeks for a sustainable lifestyle learning and how to create our own cosmetic product from natural components. Come and join our workshop!
Used Cooking Oil: Black Market and Collaboration
Bio Bus continues to tackle down the black market of cooking oil by approaching and collaborate with hotels and restaurants. Currently, we have a partnership with 40+ stakeholders to collect the used cooking oil and turn it into biodiesel. Interested to join our mission to make a greener Bali? Feel free to contact us on bio.bus@greenschool.org

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