OVID, Mich. — Michigan’s Public Service Commission has approved Consumers Energy’s application to build a 36-inch natural gas pipeline. The agency says the new Mid-Michigan Pipeline is to replace an existing, 20-inch line between Ovid, north of Lansing, and Chelsea, west of Ann Arbor. Its cost is estimated at $550 million. The Jackson-based utility says the existing line is more than 70 years old and that replacing it would increase Consumers Energy overall system resilience and remove a gas-supply bottleneck in the smaller pipeline. Construction of the new 56-mile pipeline is expected from 2023 to 2024.