When the field for Fixed import/export in demand tab is filled, this means that the value is calculated as export – import, which means that it is a positive sign if the export is higher and negative if import is higher than export. Am I right? This convention is then also applied in the distribution file?
Transmission line capacity – Does this count as maximum possible export to external markets? Because if the import is counted, how to express the result? For example, it can happen that maybe a country can export 1500 MW, but external markets can receive only 1200 MW. At the same time, the country can import for example 1000 MW. What is then the transmission line capacity?