The study found 29% of people are currently struggling because of soaring energy costs.
Up to 40% of Irish households could be facing fuel poverty this winter.
Hard-pressed householders could see their energy prices rise by as much as €70 per week if prices continue to surge on their current trajectory.
An ESRI study found 29% are struggling because of soaring energy costs, up from the previous high of 23% back in 1995.
Inflation between January and April means households are now paying an extra €21.27 per week on energy, that rises to €38.63 more per week if motor fuels are included
ESRI Economist Dr.Barra Roantree has said at least 10% of household incomes are now going on energy cost, or 1 in 10 people.
Co-author of the report and ESRI economist Dr Barra Roantree says government can help those most vulnerable: