AIB Grid-Connected is a market-driven descriptor for certain Guarantees of Origin that meet the following criteria: Firstly, they're EECS-GOs, which is where the "AIB" prefix is earned - adhering to the EECS Rules overseen by the Association of Issuing Bodies (AIB). Secondly, they are readily transactable between two countries with a physical interconnection in the European grid, hence "Grid-Connected". As all AIB certificates can be transferred across borders between AIB member countries, grid-connected is frequently used as a modifier (and potentially coined) by traders and corporates to immediately anchor a conversation about certificates back to a geographic reality. An example use case would be a GO issued in Norway that was later cancelled by a buyer in Germany - with neither counterparty having to deal with any other technical infrastructure besides their own national registry or a Soldera account. Contrastingly, an Icelandic-issue EECS GO, whilst AIB-Hub transferable, would not be considered grid connected due to a lack of physical connection infrastructure with any European mainland country.