Dual-fuel customers will save around 370-euro a year.
Kildare residents signed up with SSE Airtricity are in line for electricity and gas price cuts from February.
It's thought a price cut by one of the country's main energy providers could trigger a price war.
SSE Airtricity is cutting its electricity rates by almost 13 per cent, and gas by 11.5 per cent, from February.
It's estimated standard dual-fuel customers will save around 450 euro a year on their bills.
It follows a 12 per cent cut announced in September.

Thousands Step Out at Dawn in Support of Mental Health
"Like A Bull In A China Shop": Kildare TD Criticises Media Minister Amid Proposed Social Media Ban For Under 16s
Darkness Into Light Events Taking Place Across Kildare
Gardaí Recover Pellet Gun After Alleged Assault In Sallins
Kfm Obituary Announcements
Man Due Before Court Following Seizure Of Firearms And Ammunition In Maynooth Yesterday
Parents And Guardians Urged To Complete Applications For School Transport, As Deadline Looms
Two Firearms, 39 Rounds of Ammunition And A Scrambler Seized In Maynooth