Flogas customers will see the cost of gas and electricity rise again for the second time in four months.
In August, the company will increase gas prices by 24.1% while prices for electricity will go up by 9.8%.
The higher charges will see average monthly gas bills rising by €30, with electricity bills up around €16.
Flogas also raised prices for their 35,000 customers back in May with increases of 27% in electricity and 29% in natural gas prices.