March 12 (Reuters) - Major companies such as Amazon ( AMZN )

and Google on Wednesday signed a pledge to

support the goal of at least tripling the world's nuclear energy

capacity by 2050, on the sidelines of the CERAWeek conference in

Houston.

Shale company Occidental and Japanese heavy

machinery maker IHI Corp ( IHICF ) also added their names to the pledge.

The pledge is expected to gain more support over the coming

months from industries including maritime, aviation and oil and

gas, said the World Nuclear Association (WNA), the nuclear

industry group that facilitated the pledge, in a press release.

The pledge adds on to the vow from over 30 countries, which

also aimed to triple capacity by 2050 in 2023.

Nuclear energy, a source of clean power, generates 9% of the

world's electricity from 439 power reactors, according to WNA.

As of early 2025, the world has only around 411 nuclear

power reactors operating, with a combined capacity of 371

gigawatts.