Choose the Right Tree
When it comes to trimming or prevention, prevention is preferred. Utilities are required to do what is necessary to provide safe, reliable, and least-cost electric service. Trimming trees is sometimes the only solution in dangerous situations. The closer a tree grows to high-voltage lines the more pruning is necessary. Only those branches that are likely to be a threat to reliability or safety are pruned.
The ideal way to prevent power lines and trees from ultimately getting in each other's way is to plant shorter varieties. The Morton Arboretum recommends trees and shrubs that grow to 25 feet in height or less, such as Hawthorn, Amur Maple, Ivory Silk Japanese Tree Lilac, Eastern Rosebud, Serviceberry and Flowering Crabapples.
Trees that should NOT be planted near power lines include: Silver Maple, Norway Maple, Sugar Maple, Oak, Bradford Pear, Pine, Sycamore, Ash, Honeylocust, Willow, Linden and Spruce. View Right Tree, Right Place brochure for more information.
The International Society of Arboriculture has more information on Avoiding Tree & Utility Conflicts. You may also want to visit the National Arbor Day Foundation website.
When Prevention Isn't Enough: