Become a supplier

We deliver generation, transmission, distribution and retail services across the largest geographical catchment of any Australian power provider. It’s a responsibility we take very seriously. That’s why we partner with a range of trusted suppliers who can help us to meet the unique needs of our customers across WA. 

We are a Government Trading Enterprise. This means we operate within commercial principles to provide quality services, conduct our procurement activities ethically, honestly and fairly, and we actively look for opportunities to maximise long term value for the benefit of our customers. 

Our suppliers help us support regional WA

Explore the options below to find out how we can work together. 

We look for opportunities to partner with local suppliers

As part of our commercial operations, our teams explore local industry capabilities and give back to the communities we serve however we can. This includes supporting regionally-based businesses. 

We buy value-for-money goods, services and works from local suppliers in our regions wherever possible - it’s built in as part of our procurement processes and in line with the Western Australian Industry Participation Strategy (WAIPS).

All prospective suppliers are encouraged to register with Tenders WA to receive alerts on relevant tenders.

Aboriginal and Torres Strait Islander businesses is important to us

Aboriginal communities and people are a large part of our community. 

To create access to opportunity, Aboriginal businesses are strongly encouraged to register with Supply Nation and the Aboriginal Business Directory of Western Australia, as these are the two key registration databases which the State Government searches for prospective contractors.

If there are no public tenders, prospective local industry suppliers are also welcome to register an interest to work with us. 

Supplier need-to-knows

Through a range of procurement processes we buy: construction, consultancy, corporate services, fleet, logistics, maintenance services (electricity related and non-electrical), major equipment, minor equipment and consumables, property management, SCADA and retail services, technology and temporary labour. 

Our major purchases are usually subject to an open tender process. We frequently invite expressions of interest and requests for quotation for smaller pieces of work, primarily in the construction, technology and maintenance spaces. 

Horizon Power sourcing processes are streamlined according to the risk profile associated with the requirement.  

As a general guide, we purchase through the following procurement processes: 

  • Direct sourcing (restricted process) 
  • Requests for Quotation (RFQ) (open or restricted process) 
  • Requests for Tender (RFT) (open process) 
  • Expressions of Interest (EOI) (to understand how a good or service can be provided) 

We invite suppliers to respond to open tenders through Tenders WA. We also recommend that you keep your website, promotional materials and Supply Nation profile (for Aboriginal and Torres Strait Islander business) up to date at all times. This helps us to identify potential suppliers in circumstances where we can direct source, or invite a restricted number of suppliers to respond to a quote. 

Horizon Power does not require pre-qualification of suppliers, however all suppliers that have negotiated an active contract (including a purchase order) will be required to complete the process to become an accredited supplier. All suppliers must comply with our Purchase Order Terms and Conditions.

Where a contractor is providing a service to the public on Horizon Power’s behalf, the contractor must ensure that the activities are undertaken in an accessible manner consistent with our Disability Access and Inclusion Plan (DAIP) and in accordance with the specifications of the contract and scope of work. The contractor must report (using the reporting template that is prescribed in the contract) to their Contract Manager by 30 June each year. 

  • Local industry and grant funding opportunities
    Resource How can they help? Contact
    Local Content Advisors (LCA) The LCA are employed by the Department of Primary Industry and Regional Development. They have been appointed to support industry and businesses in achieving the objectives of the WAIPS and the Aboriginal Procurement Policy.  Please contact your Regional LCA
    Chambers of Commerce and Industry (CCI) Your local Chamber of Commerce and Industry may have its own strategies to support local and Aboriginal business.  Visit the Regional Chamber of Commerce and Industry of Western Australia website to search for your local regional chamber’s details.
    Local Capability Fund (LCF) Grant funding to assist small and medium enterprises (SMEs) in WA to increase their capability and competitiveness as suppliers of products, services and works to the Western Australian State Government, major projects and other important markets. Visit
    New Industries Fund Provide grants across the nine regions of Western Australia to support venture creation, accelerate small-medium enterprise growth and seed innovation initiatives. Visit the website for more information. 
    Development Commission Provide information and advice to promote business development within the region. There are nine Regional Development Commissions with 21 offices in Western Australia which can be found on their website. 
    Small Business Development Corporation WA Provide free information, advice and guidance to business intenders and those already operating a small business in WA. Visit the website for more information.


  • Aboriginal and Torres Strait Islander business support and economic development organisations
    Resource How can they help? Contact
    Supply Nation Joining Supply Nation as an Indigenous business can be the gateway to connecting with the procurement team’s of Australia’s largest organisations.  Register on Supply Nation's website or phone 1300 055 298.
    Aboriginal Business Directory WA (ABDWA) ABDWA is a free service providing Aboriginal business in WA with an opportunity to promote their products and services to potential buyers from government and private organisations. Visit their website or phone (08) 9365 7735.
    Indigenous Business Australia (IBA) IBA is a commercially focused organisation with a vision to create a nation in which Aboriginal and Torres Strait Islander people are economically independent and an intergal part of the economy.  Visit their website for more information.

Updated vaccination requirements to attend Horizon Power premises

In accordance with changes to the WA State Government’s mandatory COVID-19 vaccination policy (in line with health advice), from Friday 10 June 2022 it’s no longer mandatory for suppliers, contractors, subcontractors and personnel attending Horizon Power premises to be vaccinated or to provide proof of vaccination against COVID-19.

The WA State Government’s Restrictions on Access (Revocation) Directions revokes, as at 12:01am on Friday 10 June 2022, the Critical Infrastructure Worker (Restrictions on Access) Directions (No 2) which previously contained the mandatory vaccination requirements applicable to persons attending Horizon Power’s premises.

Removal of travel restrictions for remote Aboriginal communities

From Wednesday 15 June 2022 restrictions to remote Aboriginal communities will be removed given the wider spread of COVID-19 across the state and in line with health advice.

The COVID Transition (Consequential Revocations) Directions (No 3) revokes, as at 12:01am on Wednesday 15 June, the Remote Aboriginal Communities Directions (No 5) which previously contained the restrictions for accessing remote Aboriginal communities.

Note that some remote Aboriginal communities may choose to still apply their own restrictions. Suppliers and contractors who need to enter a remote Aboriginal community on behalf of Horizon Power should confirm the access requirements prior to arrival.

If you have any queries

Please contact your Horizon Power representative for your contract or send us a message via

Supplier Code of Conduct

Understand the minimum standards of conduct and the expectations for you and your supply chains when working with Horizon Power.

Keeping safe

Browse our safety resources and training information for contractors working with Horizon Power.   

Learn more

Horizon Power acknowledges the Traditional Custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders past, present and emerging.

Aboriginal and Torres Strait Islander people are advised that this website may contain images, names or voices of deceased people.