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Cost Assumptions
The database of cost assumptions is retrieved from the repository PyPSA/technology-data and then saved to resources/costs.csv. Cost assumptions of previous PyPSA-Eur versions can be restored by setting in the Snakefile: COSTS="data/costs.csv".
The config.yaml provides options to choose a reference year (costs: year:) and use a specific version of the repository costs: version:.
It includes cost assumptions for all included technologies for specific years from various sources, namely for
- discount rate,
- lifetime,
- investment (CAPEX),
- fixed operation and maintenance (FOM),
- variable operation and maintenance (VOM),
- fuel costs,
- efficiency, and
- carbon-dioxide intensity.
The given overnight capital costs are annualised to net present costs with a discount rate of r over the economic lifetime n using the annuity factor
Based on the parameters above the marginal_cost and capital_cost of the system components are calculated.
Modifying Cost Assumptions
Some cost assumptions (e.g. marginal cost and capital cost) can be directly overwritten in the config.yaml (cf. Section :ref:`costs_cf` in :ref:`config`).
System Message: ERROR/3 (<stdin>, line 43); backlink
Unknown interpreted text role "ref".System Message: ERROR/3 (<stdin>, line 43); backlink
Unknown interpreted text role "ref".To change cost assumptions in more detail, modify cost assumptions directly in resources/costs.csv as this is not yet supported through the config file.
You can also build multiple different cost databases. Make a renamed copy of resources/costs.csv (e.g. data/costs-optimistic.csv) and set the variable COSTS=data/costs-optimistic.csv in the Snakefile.