Electric Ireland's the latest energy provider to announce a hike in its gas and electricity prices.
From May 1st electricity bills will rise by 23.4 per cent, while gas prices will increase by 24.8 per cent.
The company says sustained changes in the wholesale cost of energy continues to drive price adjustments.
The rise in costs will add almost 25 euro a month onto the average electricity bill and just over 18 euro on to the average gas bill.
A 2 million euro hardship fund will remain open to customers experiencing difficulties paying bills, according to the firm.