Super SEL

Super SEL is utilised to directly decrease the sum of the minimum MW level or Stable Export Limit (SEL) of generators synchronized to the system by lowering the minimum generating level at a generator synchronised.

There is no upfront criteria for selection but use of the service in real time will be dependent on the:

  • notice time to enact the lower SEL - preference for closer to real time
  • duration for which the lower SEL can be offered
  • impact on reactive power range, inertia and response capability at the lower SEL
  • the value of the Super SEL service against other services, including but not limited to Interconnector Actions, action on non synchronous machines, generation desynchronisation or operation mode changes