Merge pull request #35 from SINTEF/hotfix/wtw-co2-calculation #71

Job	Run time
build (3.10, feems)	1m 15s
build (3.10, machinery-system-structure)	1m 8s
build (3.10, RunFEEMSSim)	1m 9s
build (3.11, feems)	1m 17s
build (3.11, machinery-system-structure)	1m 0s
build (3.11, RunFEEMSSim)	3m 22s
build (3.12, feems)	1m 23s
build (3.12, machinery-system-structure)	1m 11s
build (3.12, RunFEEMSSim)	1m 10s
	12m 55s

Provide feedback