Energy and Process Systems Engineering LaboratoryOpen OpportunitiesDirect air capture (DAC) is an indispensable technology for meeting the challenges of achieving net-zero emissions [1]. Despite its promise, DAC with CO2 storage (DACCS) faces significant hurdles, primarily due to its (current) high energy intensity and capital expenditures, which are sensitive to design- and location-specific factors. Optimal carbon dioxide removal (CDR) efficiency is reached when powered by low-carbon energy sources [2–4]. This indicates the potential of so-called `off-grid' DACCS designs – i.e., DACCS systems without a connection to the power grid network – since they allow a system fully powered by renewable energy sources, thereby avoiding emissions from currently carbon-intensive power grids. However, off-grid systems rely on intermittent renewable energy sources, such as solar photovoltaic (PV) and wind turbines. The intermittency of these sources, the power requirements of DACCS, and the need for heat limit the feasibility of widespread deployment, especially in land-constrained areas. Here, the main goal is to assess the performance of off-grid DACCS with a global scope by extending an earlier geospatial model developed at ETH Zurich.
Prerequisites
Basic knowledge of energy technologies and energy systems analysis, techno-economic analysis, and life cycle assessment. Familiarity with negative emissions technologies/carbon dioxide removal is an asset. Familiarity and knowledge of Python, geospatial analysis, and linear optimization is a plus. - Engineering and Technology
- ETH Zurich (ETHZ), Master Thesis
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