The Northern Pass, a proposed transmission line carrying renewable hydroelectric power to New Hampshire and New England, cleared a regulatory milestone by securing 'I.3.9 approval' by ISO New England, the operators of the region's power grid. The I.3.9 process determines whether Northern Pass can reliably interconnect with the New England grid. By approving the project's I.3.9 application, ISO New England determined Northern Pass will have no significant, adverse effect on the reliability or operating characteristics of the regional energy grid and its participants. All energy projects must secure this approval in order to be connected to the regional power grid.
