The Swiss government said on Wednesday it plans to overturn a ban on building new power plants to strengthen local energy supply at a time of increased geopolitical tension.

Energy Minister Albert Roesti said the government would submit a proposal to amend nuclear legislation by the end of 2024 so it can be debated in parliament next year.

"Over the long term, new nuclear power plants are one possible way of making our supply more secure in a geopolitically uncertain time," Roesti told a press conference.

Failure to retain the option could be seen as a betrayal by future generations, Roesti argued.