For a given area and time step, isolated upward margin is the difference
between the available production capacity plus the fatal productions and the
load. More formally it is equal to:
isolatedUpwardMargin = (`AVL DTG` + generatingMaxPower + storageCapacity) +
(`H. ROR` + WIND + SOLAR + `MISC. NDG`) - LOAD
NB: in Antares v6 (and earlier versions) generatingMaxPower is replaced
by hstorPMaxAvg.
The variable storageCapacity is automatically created when pumped
storage areas are removed with function
removeVirtualAreas. If there is not any such area,
storageCapacity is assumed to be equal to 0.
Interconnected upward margin is the isolated upward margin plus the imports and
minus the exports:
interconnectedUpwardMargin = isolatedUpwardMargin - BALANCE + `ROW BAL.`