Skeptics worry the plan will give polluters an inexpensive and imprecise option to meet future emission targets.
Both nations face similar debates on emissions limits, a carbon tax, and other energy-related issues.
The utility says its interim goal of 80 percent carbon reduction by 2030 can be met with existing technology.
The economy can grow while emissions from fossil fuels fall, but policy matters, said experts at an international science conference this month.
The state’s largest utility is teaming up with a Finnish company to explore using hydrogen to make methanol.