409
Fig. 15.2 Reference (no water cost) electricity generation by type (with water intensity)
Fig. 15.3 Electricity generation and water use intensity simulated for South Africa using a watersmart TIMES model (SATIM-W) by type (Rodriguez et al. 2017)
when considering the large energy demands that may be incurred as a result of
transporting (pumping) and treating water to meet a particular end use.
Water system models range from physical hydrology modeling approaches,
focused on simulating the cycling of water between the atmosphere, land surface,
and subsurface, to water systems models that incorporate anthropogenic demands
for allocation of water to satisfy a set of objectives and constraints.
A representative model in the hydrology space is SWAT (Soil and Water
Assessment Tool), which has been continuously developed to simulate streamflow, in-stream water quality/yield/supply, surface runoff, groundwater recharge,
15 Modeling
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