L4 Medium/ Large Business tariff

The L4 tariff is applied to customers where the electricity is used for business purposes, with consumption of 50 megawatt hours or more per annum (greater than 137 units per day on average), and for customers who use electricity partly for residential and partly for business purposes, who consume more than 160 megawatt hours per annum.

Compatible with

Renewable energy

Including solar, battery, wind, EVs and more.

Paperless billing

We'll email a copy of your bill to the inbox linked to your energy account.

My Account

Our handy online tool to track your usage, update your details and access your bills in one central spot.

Supply charge	$1.8796 per day
0-1,650 kWh/day	38.1783 cents/kWh
>1,650 kWh/day	32.3956 cents/kWh

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Billing

Description	Fee
Account establishment	$26.55
Copy of customer invoice request	No fee
Card transaction fee	0.34%
Dishonour fee (via Australia Post)	$30.42
Dishonour fee (via direct debit)	$2.76
Overdue account notices	$6.42*
Over the counter payment (Australia Post)	$2.81
Paper bill fee	$1.32
*GST not applicable

Metering

Description	Fee
Adding or removing meters from an embedded network account	Quote required
Embedded network management	$345.00
Interval data request	$31.57
Manual meter read - manual	$168.00
Manual meter read - special	$25.28
Meter test - standard meter testing	$274.00
Meter test - concession rate	$171.00
Meter damage	$942.00
Rebilling of an embedded network master meter account	Quote required
Reconciliation of embedded network master account	Quote required
Remote meter configuration	$29.10
Remote reconnection or disconnection	$6.87
Subsidiary electricity meter rental (daily charge)	$0.1790

Electricity fees and charges

We provide a range of retail and network services for customers and contractors. Visit our pricing page to view all fees and charges, effective 1 July 2025.

View current prices

The future of energy is evolving fast

We're working with the State Government, Synergy and Western Power to transition how we produce, manage and consume energy in WA.

Read the DER roadmap

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.