The pledge is nonbinding, but highlights the growing support for expanding nuclear power among leading industries, finance and governments.

Major technology and energy companies have pledged to support wider use of nuclear power, as surging demand from data centers and factories outpaces current availability.

Major companies such as Amazon 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.