Ann Arbor City Council Urges "No" Vote on Proposal E - Councilmember Jen Eyer (D-Ward 4); Ann Arbor Mayor Christopher Taylor; Matt Grocoff, Energy Expert / SustaintableA2.org - Ann Arbor's Proposal E is an initiative on the Nov. 3 midterm ballot to explore replacing DTE Energy’s electrical utility with a city-run power grid. In a 10-1 vote, Ann Arbor City Council voted to challenge the legality of the measure, saying the move to change to a municipally-owned electric system could cost more than a billion dollars.