3.3. Case study scenarios: Environmental LCC
The economic part of the Environmental LCC is identical to the
Conventional LCC for the entire system (i.e. Fig. 3A, Total⁄) since
there were no anticipated transfers in any of the activities involved
in both scenarios, i.e. we did not expect any externalities to be
internalised into monetary costs in the near future. In order to
evaluate the Environmental LCC (Fig. 3B), the results from the parallel
LCA thereby supplement the above discussions. Overall, both
scenarios performed similarly in all impact categories with net
environmental benefits for all energy-related impact categories
(global warming, photochemical oxidant formation, terrestrial
acidification, resource depletion (fossil) and freshwater eutrophication)
and net environmental loads for resource depletion (metal),
carcinogenic human toxicity and freshwater ecotoxicity. The environmental
savings in the energy-related impact categories stem
from the displacement of fossil-fuel based energy by the energy
recovered in the incineration and co-digestion plants.