New data centres owned by big tech companies likes of Google, Amazon and Facebook will need their own emergency power supplies if they're to be allowed access the national grid.
The Irish Times reports they'll also have to cut consumption when required, under measures being considered by the Commission for Regulation of Utilities.
It's aimed at easing pressure on the country's electricty network, and is set to be unveiled within days.
Environmental Journalist John Gibbons says the new rules are a step in the right direction.
"We already have 70 data centres in operation in Ireland, with lots more planned.
"Each of these data centres, in terms of electricity consumption, is using the equivalent of a medium sized Irish town, so about 40,000 houses.
"Over the last four years we've added the equivalent of another 500,000 houses worth in data centres."
