Tree Trimming

NV Energy's Program is intended to help protect the public, protect property and maintain electric reliability. Trees can cause power outages when branches rub against power lines, or branches break and fall on lines or when trees are blown over on to power lines during storms.

Submit a Tree Trimming Request

If you wish to request that a tree be trimmed or you have questions not answered on this page, please call the numbers listed below.

Please be ready with the following: Your name, the address of tree or palm location, a contact number and if applicable, whether the tree or palm is yours or your neighbor's.

Northern Nevada
Southern Nevada
(775) 834-4444
(702) 402-5555


Please remember, it is very dangerous for trees to come in contact with with power lines.

However, do not attempt to prune the trees yourself. If you feel the situation is urgent (for example, if you see or hear arcing or sparking, or observe power lines on the ground) please call:

Northern Nevada
Southern Nevada
Emergency: (775) 834–4100
Emergency: (702) 402-2900

Do not attempt to prune the trees yourself.

Tree trimming by utilities is an essential part of maintaining reliable supply of electricity and protecting our customers. When customers attempt to prune trees near power lines on their own, or climb these trees they put themselves in very serious danger.

Each year, hundreds of people throughout the United States are injured or killed when they attempt to climb or prune trees. Power lines can seriously harm children climbing in the branches.

By trimming trees and brush we can eliminate these safety hazards and reduce tree-related outages.


Because tree trimming is so important, legislation exists which requires both NV Energy and the property owner to ensure that a minimum clearance space between trees and power lines is maintained.

Frequently Asked Questions

Why does NV Energy trim trees?
Tree Trimming Program is intended to help protect the public, protect property and maintain electric reliability.
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Why does NV Energy trim trees on private property?
Sometimes trees on private property will grow into or near NV Energy high voltage lines. Under these circumstances NV Energy will trim branches to prevent danger to the public and damage to our equipment and danger the public. NV Energy will also remove trees where the trunks are too close to the power lines.
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Who does the work?
NV Energy uses skilled and specially trained staff and selected contractors who have received training to meet the requirements of OSHA and ANSI Z133.1-2000 to approach and work close to high voltage power lines. NV Energy's staff and selected contractors also use specialized equipment to protect themselves while working around with high voltage power lines.
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How often do we trim trees?
NV Energy typically allows for an average of three years growth between each trimming, depending on the type of tree and other circumstances. At the time of trimming, we will seek at least 10 feet of clearance between high voltage power lines and tree limbs.
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How do we trim trees?
At NV Energy we follow the trimming practices recommended by The International Society of Arboriculture and described by Dr. Alex L. Shigo in his book, "Pruning Trees Near Electric Utility Lines: A Field Pocket Guide For Qualified Line-Clearance Workers." The following practices are followed at NV Energy:

  • Techniques consistent with the practices of natural, lateral and drop crotch trimming will be utilized.
  • Cuts are made back to a main stem or branch of sufficient size. In no case will deciduous tree limbs be stubbed off at the edge of the clearing limits.
  • Wherever possible, all trimming cuts will be made to direct future growth and sprouting away from the conductors.
  • If possible, conifers will be trimmed in a manner that allows them to retain as much of their natural shape as possible.
  • All dead branches overhanging primary conductors at any height will be removed.
  • A minimum number of cuts are made to achieve required clearances.
  • Where practical, cuts are primarily restricted to large diameter branches made well within the crown. Shaping through the use of many small diameter branches in the outer crown will be avoided.
  • Remove living branches by making cuts as close as possible to the branch collar. Remove dead branches by making cuts as close as possible to the living tissues that surround the dead branch at the base.
  • Precautions will be taken to avoid stripping or tearing of bark when cutting.
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Who has responsibility for trees and power lines?
Inside the power corridors, tree trimming and removal is NV Energy's responsibility. NV Energy will trim or remove trees outside the power corridor when these trees could interfere with or fall into the line and create a hazard.

It is the property owner's responsibility to keep trees clear of their electric service line that runs from the pole to the owner's house. NV Energy recommends the use of a trained tree trimmer to do this work. It is NV Energy's responsibility to keep trees clear of its power lines. The clearance space required increases as the voltage increases. Trees don't need to be touching the power lines to require trimming. They will be trimmed on a cycle if they are growing into the clearance space. Achieving the required clearance may mean trimming on your property.
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What about palms?
Unfortunately most palms that grow under or very close to the high voltage power lines will have to be removed. Because of the way palm trees grow they cannot be trained to avoid our lines like other trees. In this situation NV Energy will cut the palm close to the ground at our own expense as a courtesy to our customers.
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Who can I contact about trees?

Please be ready with thefollowing: Your name, the address of tree or palm location, a contact number and if applicable, whether the tree or palm is yours or your neighbor's.

Northern Nevada
Southern Nevada
(775) 834-4444
(702) 402-5555
Emergency Only: (775) 834-4100
Emergency Only: (702) 402-2900
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Why not just shape trees?
Shaping, once a popular practice, is now considered horticulturally unsound. Shaping damages a tree's health and creates a hazard to people, property, and overhead lines. Shaped trees grow back quickly with vertical suckers sprouting up from the cut ends of branches. These suckers are weakly attached to the branches and can break off in moderate winds creating wind-borne debris. This can lead to power blackouts and the need for far more frequent tree trimming. Proper trimming may look severe at first but the trees grow back at a normal rate and are trained away from power lines. The health of the tree is maintained and even enhanced with correct cutting.
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What can I do to help?
Customers can help by ensuring that only they think ahead when landscaping their property. Research the growth habits of trees and plants especially the size they will achieve when mature. Try to avoid planting trees near electric lines in the first place. If you must have a tree near our lines plant only low-growing, compact varieties.
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Right Place Right Tree

Tree Trimming Explained

View the Southern Nevada Regional Planning Commission's list of plants and trees appropriate for various uses around southern Nevada including which ones are best for planting under power lines.