Thirteen years a massive earthquake and tsunami triggered one of the world's worst nuclear crises, Tokyo Electric Power Company Holdings still has far to go to reach its profits target for financing measures committed to Fukushima Prefecture.

Monday's anniversary of the Great East Japan Earthquake and tsunami that rocked the Tohoku region and triggered the triple-meltdown at Tepco's Fukushima No. 1 nuclear power plant in the prefecture comes as the utility continues to grapple with multiple challenges.

To make sure that Tepco pays compensation to people and organizations affected by the nuclear disaster while maintaining a stable supply of electricity, the government effectively nationalized the company in July 2012 — injecting ¥1 trillion for a 50.1% equity stake in terms of voting rights — instead of opting to let it go bankrupt.