An ISO-NE market efficiency transmission project intended to release bottled wind resources in Maine may not be cost-effective, according to a draft report.

The latest ISO-NE briefing on its ongoing economic study focused on the shortfall of energy market revenues, prospects for storage and meeting RPS goals.

ISO-NE planners last week outlined an analysis that will determine approval of transmission upgrades to accommodate wind development in the Keene Road area in Maine.

ISO-NE presented five resource scenarios it will evaluate in its 2016 Economic Study at the Planning Advisory Committee last week.

ISO-NE CELT report study predicts that load growth will remain low in New England while solar is expected to grow faster than anticipated.

Transmission projects expected to be in service by 2020 are adequate to leave the boundaries of the four zones intact, ISO-NE said.

The ISO-NE Planning Advisory Committee discussed economic studies for the year and the installed capacity requirement.

Carbon dioxide emissions rose about 7% in New England last year as the loss of the Vermont Yankee nuclear plant increased fossil fuel generation.