GALESVILLE, Wis. (AP) — A western Wisconsin farmer could be awarded up to $13.5 million after winning a five-year legal battle against an electric services company over stray voltage.

Paul Halderson told the La Crosse Tribune that his dairy farm herd of nearly 1,000 cows dealt with illness and decreased milk production for more than a decade because of Xcel Energy's improperly grounded power lines.

Current that leaks from neutral wires in the ground are referred to as stray voltage. Animals can receive small shocks when they come into contact with a grounded object, such as a watering trough....