They said this equates to 328,000 households who have fallen behind on their electricity bills, with 189,000 behind on gas bills. A record number of households are now in arrears on their energy bills, according to new figures from the energy regulator. Since then, Electric Ireland, Yuno Energy and PrepayPower have all hiked their electricity prices and other suppliers could follow suit over the coming weeks as wholesale electricity costs, as well as costs for managing the electricity grid, have both gone up.