The utility group has around 3.2 million customers locally.
Since entering the Romanian market in 2005, E.ON modernized 8,290 km of natural gas pipelines (half its network) and 6,450 km of power lines, the company said Tuesday.
The company extended its natural gas distribution network by 1,795 km and its electricity distribution network by 2,350 km.
It said it invested EUR1.1 billion in network upgrades alone between 2005 and 2019 and plans to invest EUR375 million more in 2020-2023.
E.ON has 6,400 employees in Romania and posted a consolidated turnover of EUR1.3 billion in 2019.