TVO systematically modernizes the OL1 and OL2 plant units during annual outages and modernization projects.
Read more about annual outages
Plant units operated safely for the entire year
The combined power output of OL1 and OL2 was 13,415 GWh in 2017. The combined load factor of the plant units was 87,2%. TVO produced approximately 16% of all the electricity consumed in Finland.
The plant units operated safely. The net output of OL1 was 7,158 GWh and the load factor was 93,1%. The net output of OL2 was 6,256 GWh and the load factor was 81.3%.
OL1: Monthly production
OL2: Weekly production
OL2: Monthly production
Annual production 2017Annual production 2016Annual production 2015
Unplanned automatic reactor trips per 7,000 criticality hours
Uranium as a fuel
The OL1 and OL2 plant units require an annual total of about 40 tonnes of low-enriched uranium for fuel. TVO acquires its fuel through a decentralized supply chain with several suppliers for each stage of the chain.
TVO has long-term contracts with leading uranium suppliers which TVO monitors and assesses on a continuous basis. Uranium is only acquired from suppliers who meet the strict requirements specified by TVO.
Read more about uranium.