Power, Trees and Vegetation

Did you know overgrown and unsuitable trees near power lines cause around a fifth of unplanned power outages in the Waikato?

You can help us deliver a safe and reliable power supply to our communities. Even when trees appear to be well clear of power lines, they still pose a threat to the power supply particularly during storms and strong winds.

Who’s responsible for what?

As a property owner, you are responsible for trees inside your property and it's important that you keep trees within your property well away from any service lines (lines within your property).

Any trees growing within your property, but reaching over onto the roadside reserve, are also your responsibility.

How much clearance is required around power lines?

A clear zone, known as the Growth Limit Zone, is required around the lines at all times (Refer to diagram).

If your trees are within one metre of the Growth Limit Zone (referred to as the Notice Zone) you'll receive a hazard notification letter giving you options to have dangerous trees either trimmed, or felled.

WEL Networks is obligated to undertake any work needed to remove that danger. However, you are responsible for preventing the hazard in the first instance.

What should I do if I receive a tree trimming notification?

If you receive a notification you need to complete a tree trimming consent form.
This outlines the options available to you as the property owner.

A tree owner commits an offence when, if given a hazard notice to trim or fell a tree and without reasonable excuse, fails to take any action to have the hazard removed. If you ignore a notification requiring you to trim or cut a dangerous tree, or you don’t advise WEL of the time and location of the cutting or trimming of the tree, you may be fined up to $10,000.