Critics, including the U.S. EPA, say alternatives such as burying all or part of the line have not been fully explored.
A task force will spend 18 months studying how to factor state carbon policies into the wholesale electricity market.
Among the barriers: privacy protections that make it hard to site projects that qualify for low-income incentives.
Some builders question whether the standard is the best one for reducing emissions from the state’s buildings.
“We’re just trying to catch up”: Under the proposal, the state would cease to be a regional laggard.