Hours Of Operations Otter Tail Power Company Minnesota Twin Valley Otter Tail Power Company Hours of Operation and Locations in Twin Valley, MN 4.8 - 14 votes 1 Locations in Twin Valley www.otpco.com Otter Tail Power Company Hours Category: Home & Garden Otter Tail Power Company - Twin Valley, MN 56584 620 Main Ave E(218) 584-5661 View Store Details Explore Twin ValleyView More Apparel Deb Recommend For You Peoples Gas Pepco Runnings Farm & Fleet Tucson Electric Power United Power Urgent Care of Connecticut Aero Energy Bellagio Salon Blind Barber Dairyland Power Cooperative