Dive Brief: Many questions remain unanswered on a proposal by Southeast utilities to form a centralized energy exchange market, stakeholders said in comments filed with federal regulators on Monday, including if it will facilitate more competition, or instead allow utilities to strengthen their position in the region. Duke Energy, Southern Company, Dominion Energy and 12 other utilities filed a proposal with the Federal Energy Regulatory Commission in February, asking the commission to approve a Southeast Energy Exchange Market (SEEM). But the clean energy industry questioned whether it will allow more zero-emissions resources to compete in the marketplace, and asked FERC to ensure proper regulatory structures are in place before any such proposal is approved.