Tree requirements

The Electricity (Hazards from Trees) Regulations have been in effect since July 1st 2005. The regulations provide for the control of trees adjacent to electricity lines. The purpose of these regulations is to protect the security of the electricity supply and the safety of the public.

 

Method of managing trees

To achieve this Alpine Energy have a successful tree management program, operating for over 30 years. Alpine wish to continue with this common sense program to help you manage your trees. For any enquiries relating to Alpine energy’s Tree management please call Tony Henderson, (Alpine Tree Supervisor) on (027) 440-8233, or consult the information available in the link below:
The Alpine Energy method of managing trees

Planting guide

To help you make wise choices when planting trees we have a Tree Planting Guide. This will give you ideas on what sorts of trees can be planted near power lines. It also gives appropriate distances that larger species should be planted away from power lines to avoid costly trimming:
Tree planting guide

Summary of hazards

If you want to know more about the regulations we suggest you read the Summary of the Regulations. It should tell you what you need to know in three pages:
Summary of the hazards from trees regulations 2003

Full version of hazards

If you prefer to read the actual regulations in legal terms then read the complete 32 page version:
Electricity (hazards from trees) regulations 2003

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Growth limit zone

Distances for spans less than and equal to 150 metres in length.

Note: Distances for spans more than 150 metres in length and varying kV conductors will be obtainable from Alpine Energy ..

 

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Distances for spans more than 150 metres in length.

 

301 to 500 metre span: larger view

 

501 to 700 metre span: larger view

701 metre or greater span: larger view

 

Note in the examples shown, the trees are within a metre of the Growth Limit Zone. The trees therefore are in the Notice Zone.