,Unit,Values,Description
voltages,kV,"Any subset of {220., 300., 380.}","Voltage levels to consider when"
co2limit,:math:`t_{CO_2-eq}/a`,float,"Cap on total annual system carbon dioxide emissions"
extendable_carriers,,,
-- Generator,--,"Any subset  of {'OCGT','CCGT'}","Places extendable conventional power plants (OCGT and/or CCGT) where gas power plants are located today without capacity limits."
-- StorageUnit,--,"Any subset of {'battery','H2'}","Places extendable storage units (battery and/or hydrogen) at every node/bus without capacity limits."
max_hours,,,
-- battery,h,float,"Maximum state of charge capacity of the battery in terms of hours at full output capacity ``p_nom``. Cf. `PyPSA documentation <https://pypsa.readthedocs.io/en/latest/components.html#storage-unit>`_."
-- H2,h,float,"Maximum state of charge capacity of the hydrogen storage in terms of hours at full output capacity ``p_nom``. Cf. `PyPSA documentation <https://pypsa.readthedocs.io/en/latest/components.html#storage-unit>`_."
conventional_carriers,--,"Any subset of {nuclear, oil, OCGT, CCGT, coal, lignite, geothermal, biomass}","List of conventional power plants to include in the model from ``resources/powerplants.csv``."