BRETTON WOODS, N.H. – The premiers of the Eastern Canadian provinces and governors of the New England states say delivering clean energy to this corner of the United States is one of the most important issues facing the region.

Energy and economic collaboration were the main topics at a two-day conference between the five premiers and five governors that wrapped up Monday at New Hampshire’s Mount Washington Resort.

Maine Gov. Paul LePage was not at the conference but members of his staff were in attendance.

Eastern Canada is rich in hydropower while New England markets are eager to shore up supply and control some of the nation’s highest energy costs.

In a conference call after the gathering, the leaders stressed any energy solutions would focus on increased efficiency and protecting the interests of each state and province individually.

The proposed Northern Pass transmission lines and tar sands oil were discussed.

The Tar Sands Free Northeast Coalition planned a protest because it opposes importing or transporting Canadian oil derived from tars sands. The Appalachian Mountain Club also submitted a letter protesting the proposed Northern Pass transmission line from Quebec to southern New Hampshire.