Riam Project

At present, the province of Central Kalimantan in Indonesia is heavily dependent on fossil fuel and energy demand is expected to treble by 2025. Electricity however in the province is still unstable, hindering Central Kalimantan’s communities and industry to maximize their economic potential. To secure a sustainable future for Central Kalimantan, the Riam project captures biogas from wastewater treatment from the production of palm oil and transform it into clean energy and water.

The biogas-to-energy project is a partnership with Bumitama Group, a sustainable palm oil company listed in SGX. Power generated from the capture of biogas is transformed to electricity and sold under a 20 years power purchase agreement to PT Perusahaan Listrik Negara (PT PLN), the national utility provider. Riam is targeted to be shovel-ready by mid-2022.


Jan 2020
Definitive agreement with host
Aug 2022
Carbon Credit registration
Aug 2022
Sign PPA
Dec 2022
Start Construction
Dec 2023



Climate Change

75,000 total tons of CO2 reduced per year

Energy for All

35,700 total people reached with 18.2 GWh clean energy

Clean Water

13,400 total tons of water pollutant removed per year



GREE has signed a definitive agreement with the host on January 2020.
Stakeholder consultation has started since November 2021 and is currently ongoing.

Your opinion matters

Contact us at sustainability@gree-energy.com if you have any feedback on the project.