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@ARTICLE{Gutsch:1024996,
author = {Gutsch, Moritz and Leker, Jens},
title = {{C}o-assessment of costs and environmental impacts for
off-grid direct air carbon capture and storage systems},
journal = {Communications engineering},
volume = {3},
number = {1},
issn = {2731-3395},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {FZJ-2024-02590},
pages = {14},
year = {2024},
abstract = {Large-scale deployment of direct air carbon capture and
storage (DACS) is required to offset CO2 emissions. To guide
decision-making, a combined assessment of costs and
environmental impacts for DACS systems is necessary. Here we
present a cost model and life cycle assessment for several
combinations of off-grid DACSs, powered by photovoltaic (PV)
energy and heat pumps combined with battery storages to
mitigate intermittency of the PV energy source. Utilization
factors of DACSs are estimated for different locations,
power of PV systems and battery capacities. We find that the
cost optimal layout for a DACS in Nevada (USA) with a
nominal CO2 removal capacity of 100,000tCO2 per year
consists of 100 MW PV and 300MWh battery. Costs are $755
and $877 for gross and net removal of 1tCO2. The cost
difference is explained by a carbon removal efficiency (CRE)
of 88\%. Of 16 evaluated environmental impact categories
mineral resource use is most problematic. We conceive a
dashboard which allows to track how changes to technical
parameters, such as energy consumption or adsorbent
degradation, impact costs, CRE and combined environmental
impacts. In an optimized scenario and including tax credits,
costs for net-removal of 1tCO2 will be $216 at a CRE of
93\%.},
cin = {IEK-12},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001478238300001},
doi = {10.1038/s44172-023-00152-6},
url = {https://juser.fz-juelich.de/record/1024996},
}