This year the theme is 'Energy across Borders - Delivering the Economic Opportunities'.
Enda Kenny is delivering today's keynote address.
Over a hundred protestors gathered outside LYIT this afternoon, but they've been kept on the road by a large number of gardai.
Commenting on the meeting and the Taoiseach's visit, Letterkenny Chamber president John Watson said “this high level meeting brings an international focus to Letterkenny and the North West. We welcome the fact that Letterkenny and LYIT was selected as the location this time round. Ministers from across the islands will be in Letterkenny for two days and will experience what Donegal has to offer. The focus on green technology is also significant given LYIT’s expertise in this area.
We believe a focus such as this will enhance Letterkenny’s profile and we hope that any protest planned will not be allowed to detract from the real business of the meeting.”