About Horizon Power
Unlike most of Australia, Horizon Power is both the network and the retailer. It owns the poles and wires, buys or generates the power, and sends the bill, all as one state-owned business.
Its customers are spread from Esperance in the south to Kununurra in the north. Rather than one connected grid, it runs a set of separate systems: the North West Interconnected System in the Pilbara and many smaller town grids and microgrids.
Under the state's uniform tariff policy, households pay the same main residential price as Synergy customers in Perth, even though supplying remote towns costs far more.
Owner: Owned by the Western Australian Government. It runs the networks and sells the electricity, so it is both network and retailer.
Horizon Power power outages and faults
Check Horizon Power's current outages first. If your outage is not listed, report it by phone or online. If only your home is affected, check your switchboard: see power out in your house.
Fallen powerlines
Treat any fallen line as live. Stay well back, call 000 if anyone is in danger, then call Horizon Power. See fallen powerline safety.
More on outages in Western Australia: power outages in Western Australia and compensation for long outages.
What Horizon Power means for your bill
Network charges are built into your retailer's usage rate and daily supply charge. The AER found network charges were up to 46% of a residential bill in 2024. On the Government-set tariff (Synergy Home Plan A1) for the Horizon Power area in 2026-27, the price is 33.26c per kWh and $1.19 a day, about $1,766 a year at 4,000 kWh.
Households here cannot shop around for a cheaper network, and retail prices are set by the government. See Western Australia electricity rates for every tariff.
How network prices are decided: AER determinations and network charges explained.
Places on the Horizon Power network
City guides with local bills, solar output and installation numbers: Broome, Karratha, Port Hedland, Esperance, Carnarvon.
Connecting solar on the Horizon Power network
Horizon Power approves every new solar connection and sets the export limit for your address. Your installer applies on your behalf. Read about export limits, export charges and the emergency backstop before you buy.
Questions about Horizon Power
13 23 51 (faults and outages). Call 000 first if anyone is in danger.
Yes. Horizon Power is unusual because it is both the network and the retailer for most of regional WA.
Owned by the Western Australian Government. It runs the networks and sells the electricity, so it is both network and retailer.
Sources
Every rate on this page comes from the regulator or the regulated retailer. Last checked October 2026. Prices include GST unless we say otherwise.