Hours Of Operations NorthWestern Energy Ohio Zanesville 43701 NorthWestern Energy Hours of Operation and Location in Zanesville, OH 43701 4.2 - 58 votes (888) 467-2669 Get Directions NorthWestern Energy Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore ZanesvilleView More Apparel Sam's ClubTJ MaxxKmartBig LotsCato Sports VansColemanHat WorldFinish LineBlades Jewelry Sam's ClubHobby LobbyCatoDeb ShopsZales Recommend For You Dayton Power & Light Duke Energy Toys R Us A Nails A-1 Appliance A+ Roofing Artistic Designs Computer Plus S & S Connections Solutions Incorporated