The output is closed while the group of gen-sets has enough capacity to fulfil
the requested power reserve. If this output is not closed it means the system
has not enough capacity to fulfil the reserve even if all the gen-sets will run.
NOTE:
Fulfiled reserve means the actual reserve is above the requested reserve for
start.
NOTE:
This output do not indicate the requested reserve has been already
fulfiled. It only indicates whether the system is able to fulfil it or not.