Tertiary control power is also referred to as "minutes reserve". Details relating to the minutes reserve called are also promptly published (indicative values) on the page Control Area Imbalance.
In accordance with EIWOG 2010, tertiary control reserve in the APG control area is since 1.1.2012 no longer be procured by the balance group coordinator APCS Power Clearing and Settlement, but rather by APG. See Tenders for Tertiary Control Power in the APG Control Area.
The recall of tertiary control takes place on a webbased recall (named AutoMOT). It was implemented in autumn 2014. Further documents are available in German only.