58 lines
1.8 KiB
ReStructuredText
58 lines
1.8 KiB
ReStructuredText
..
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SPDX-FileCopyrightText: 2019-2024 The PyPSA-Eur Authors
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SPDX-License-Identifier: CC-BY-4.0
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############################
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Techno-Economic Assumptions
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############################
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The database of cost assumptions is retrieved from the repository
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`PyPSA/technology-data <https://github.com/pypsa/technology-data>`__ and then
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saved to a file ``resources/costs_{year}.csv``. The ``config/config.yaml`` provides options
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to choose a reference year and use a specific version of the repository.
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.. literalinclude:: ../config/config.default.yaml
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:language: yaml
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:start-at: costs:
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:end-at: version:
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The file includes cost assumptions for all included technologies for specific
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years compiled from various sources, namely for
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- discount rate,
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- lifetime,
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- investment (CAPEX),
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- fixed operation and maintenance (FOM),
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- variable operation and maintenance (VOM),
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- fuel costs,
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- efficiency, and
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- carbon-dioxide intensity.
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Many values are taken from a database published by the Danish Energy Agency (`DEA
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<https://ens.dk/en/our-services/projections-and-models/technology-data>`__).
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The given overnight capital costs are annualised to net present costs
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with a discount rate of :math:`r` over the economic lifetime :math:`n` using the annuity factor
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.. math::
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a = \frac{1-(1+r)^{-n}}{r}.
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Based on the parameters above the ``marginal_cost`` and ``capital_cost`` of the
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system components are automatically calculated.
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Modifying Assumptions
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=====================
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Some cost assumptions (e.g. marginal cost and capital cost) can be directly
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set in the ``config/config.yaml`` (cf. Section :ref:`costs_cf` in
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:ref:`config`). To change cost assumptions in more detail, make a copy of
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``resources/costs_{year}.csv`` and reference the new cost file in the ``Snakefile``:
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.. literalinclude:: ../Snakefile
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:start-at: COSTS
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:end-at: COSTS
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