Hundreds of multinational corporations on Tuesday urged Japan to triple its capacity to generate renewable power by 2035, as the heavily coal-dependent country updates its energy policy.

Dubbed RE100, the group of more than 400 large companies that have committed to working towards using all-renewable electricity includes 87 Japanese firms such as Sony and Panasonic.

"By increasing its domestic renewables capacity, Japan can significantly improve its energy security, safeguard its international competitiveness, and increase private investment in more renewables projects," the group said.