Transmission refers to network infrastructure that carries very large amounts of energy from generation sources to substations where it is then transferred to the distribution network and then delivered to residential and business properties.

A transmission line easement is a property right that enables our employees and contractors to enter land to undertake maintenance and other work on transmission lines and other associated electricity assets. To protect this property right the easement places limitations on certain land uses and activities over the land that could pose a safety risk to the community to environment or impact the safe operation of the Western Power network.

Common examples of easements include poles or wires on private land and shared driveways. You can find more information on landowner obligations here.

While we prioritise using existing infrastructure where possible, upgrades alone aren’t always feasible. During planning, we consider future electricity needs, community and industry demand, technical requirements, cost and operational needs. We undertake a rigorous assessment to balance these factors and ensure the best option for the community.

The result is a combination of new construction and targeted upgrades to existing assets.

Electric and Magnetic Fields (EMF) are carefully considered in the planning, location and operation of Western Power network assets. We are guided by Australian and international health authorities and take a precautionary approach in line with the Energy Network Australia EMF Management Handbook. This includes applying industry best practice methods to our engineering and design solutions to reduce or mitigate EMF exposure.

You can find information on Electric Fields and Magnetic Fields and their occurrence on the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) website.

More renewable energy sources are required to meet growing community and industry demand. The most abundant renewable resources such as wind are often located outside the metro area in our regions. To transport clean energy from these regions requires essential upgrades to the existing network as well as building new connecting infrastructure. This will ensure the network continues to meet growing energy needs while remaining robust and reliable.

For more information please visit Energy Policy WA

Click the diagram below to see Western Power's key considerations when planning a new energy transition project.

When Western Power identifies a potential project, we begin with desktop assessments to review environmental, heritage, and planning considerations. This early stage helps refine project options by avoiding areas with high environmental value and reducing potential impacts. Following this, specialist consultants conduct detailed Flora and fauna surveys as part of an Environmental Impact Assessment (EIA). You can also find out more about environmental assessments on the Environmental Protection Authority website. The EIA is a rigorous process that identifies biodiversity values, assesses ecosystem health, and determines species present, ensuring we understand environmental constraints before development. These findings guide measures to avoid, mitigate, or offset environmental impacts, such as preventing the spread of plant diseases like dieback, protecting key habitats, or relocating wildlife when necessary. Through these steps, we aim to safeguard Western Australia’s unique landscapes while delivering essential electricity infrastructure.

What will you see?

Similar to heritage surveys, environmental assessments or flora and fauna surveys are usually unobtrusive, so you may not even notice they are taking place. They typically involve a small increase in foot traffic and occasional vehicle access, with minimal disturbance to the area. To ensure environmental values are accurately assessed, Western Power may need to visit a property multiple times. This is due to factors such as seasonal requirements and the need for different specialists to conduct various surveys (e.g., botanical, zoological, dieback). We aim to be efficient, transparent, and considerate, keeping you informed and involved throughout the survey process.