Prices on the wholesale electricity market fell again in May, according to the latest figures from the Single Electricity Market Operator (SEMO) which runs the all-island market for electricity.
The daily average traded price of electricity per megawatt hour in May was €105.21, down 27% on May last year.
In the year so far to the end of May, the daily average is down 32% to €139.49 compared to the same five month period last year.
The daily average fell by 16% in May compared to April.
Domestic electricity bills have largely remained unchanged since a series of price increases last year. Energy companies have said price hedging decisions have shielded customers from the full extent of increases in wholesale markets over the past two years.