Yuno Energy has announced a price freeze for its electricity and gas customers for the winter months.
The energy supplier said it will not increase prices until the start of March, at the earliest.
The bill pay service company, which was set up two years ago, has 65,000 customer accounts.
Yuno Energy's sister company PrepayPower, which is a pay-as-you-go energy provider, last week announced a price freeze for its electricity and gas customers for the winter months.
In recent weeks, energy companies SSE Airtricity, Bord Gáis Energy, Energia and Pinergy have all announced price increases for their electricity customers. Flogas has also increased its prices.
Electric Ireland said it was not increasing prices for its electricity customers ahead of the winter, while it lowered its gas prices.
The chief executive of Yuno Energy said the "absence of universal energy credits this winter would make customers more price sensitive than ever".
Cathal Fay added that "the coming winter is going to be difficult for many customers and we believe that this announcement will reassure both existing and new customers that they can have predictability about energy costs for the coming months".
The company said following the recent price rises announced by its competitors, "a customer moving to Yuno Energy for both electricity and gas could save up to €945, made up of savings of €551 on electricity and €384 on gas, based on average usage."
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