Gov. Kate Brown says Oregon is the first state in the nation to require its largest utilities to generate all their power carbon-free by 2040, while it helps low-income customers share in benefits and cushions them from negative economic effects.

“It is the most aggressive clean-energy bill in the country,” the Democratic chief executive said Tuesday at a ceremony on Electric Island, a joint project that Portland General Electric and Daimler Trucks North America that opened three months ago on Portland’s Swan Island.