,Unit,Values,Description p_max_pu,--,"Value in [0.,1.]","Correction factor for link capacities ``p_nom``." p_nom_max,MW,"float","Global upper limit for the maximum capacity of each extendable DC link." max_extension,MW,"float","Upper limit for the extended capacity of each extendable DC link." length_factor,--,float,"Correction factor to account for the fact that buses are *not* connected by links through air-line distance." under_construction,--,"One of {'zero': set capacity to zero, 'remove': remove completely, 'keep': keep with full capacity}","Specifies how to handle lines which are currently under construction."