
Our Projects
Together with our sister organization, atmosfair gGmbH, we develop climate protection projects around the world. Our focus lies on countries in the Global South, combining climate action with improvements to the living conditions of people who are most affected by climate change. Solarbelt focuses on projects for the production of sustainable fuels for the aviation and maritime sectors. We carefully assess which technology is best suited for each region. If a country already has sufficient access to renewable electricity - such as Kenya, Ethiopia, or Brazil - a Power-to-Liquid (PtL) technology pathway may be appropriate, as it does not compromise the sustainable electricity supply for the local population. In countries with sufficient amounts of sustainable residual biomass - such as Indonesia - but where electricity generation still relies heavily on fossil fuels, we instead focus on Biomass-to-Liquid (BtL) technologies.
Together with our local partners, we develop business models that are not only climate-friendly, but also create additional income opportunities for local communities and businesses.
Learn more about our ongoing projects in the following areas:
Power-to-Liquid
Power-to-Liquid (PtL) technology produces nearly climate-neutral liquid fuels such as synthetic kerosene from renewable electricity and CO₂. Despite its high costs and energy-intensive production process, PtL is considered one of the most promising pathways for replacing fossil fuels and significantly reducing emissions, particularly in the aviation sector. As a pioneer in this field, Solarbelt contributed to the development of one of the world's first commercial-scale PtL fuel production plants and is currently working intensively on projects focused on the production of e-methanol.

Biomass-to-Liquid
Biomass-to-Liquid (BtL) technology converts solid residual biomass, such as wood residues, cashew shells, or coconut shells, into sustainable liquid fuels with little to no additional electricity demand. Although production costs remain high today, we have successfully demonstrated the technical feasibility of producing synthetic kerosene from real residual biomass feedstocks. We believe BtL has great potential to create new local value chains in the Global South while supporting the sustainable decarbonization of the transport sector.

Power- and Biogas-to-Liquid
The Power- and Biogas-to-Liquid (PBtL) pathway converts biogas derived from residual and waste biomass into synthesis gas through reforming or plasmalysis, and subsequently into sustainable fuels with significantly lower electricity demand than conventional PtL processes. PBtL can also utilize wet biomass feedstocks and creates additional value by making productive use of organic waste streams. However, because biogas is already a valuable resource, implementing PBtL requires careful consideration of existing and potential local uses for biogas.
