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How we price our services

The amount of revenue we earn from our customers each year is set by the Australian Energy Regulator. This regulation exists to protect customers by ensuring performance standards and by capping revenues based on expected costs forecast over a 5-year period.

For 2019-24, the Australian Energy Regulator has allowed us to recover $2,012.5 million from our customers to operate the distribution and transmission networks over 5 years from 1 July 2019.

We're committed to keeping any increase at around CPI levels for both transmission and distribution customers and we have been able to do that while not compromising the delivery of a safe and reliable electricity supply. 

Distribution Regulatory Proposal 2019-2024

On 30 April 2019 the regulator released its final decision for the period 1 July 2019 to 30 June 2024. 

To view our proposal and supporting documentation visit the AER's website.

Transmission Revenue Proposal 2019-2024

The prices and methodology for our prescribed transmission services for 2019-24 is available below.

Frequently asked questions

  • How do you calculate prices?

    We’re a regulated business. This means we’re not allowed to earn more from network charges in any given year than the amount set for that year by the Australian Energy Regulator.  We calculate a range of network prices (called network tariffs) for different categories of customers, in order to recover our allowable revenue. We obtain our income to operate through these network tariffs. Even if our network charges don't appear on the bills received by customers from their electricity retailer, retailers consider our network prices when setting their retail electricity prices and calculating your electricity bill. Find out more about our current prices

    The network tariffs we apply to each customer (and bill to their retailer) may include one or more of the following types of charges:

    • Fixed charges: Every customer on the same network tariff is charged the same amount, regardless of how much electricity they use, when they use it or their level of demand. This sort of charge is often used to charge customers for their connection to the network, usually on a daily basis.
    • Consumption charges: Customers are charged for their use of the network through a change applied to each unit of electricity they use - typically per kilowatt hour.
    • Demand charges: Customers are charged for their use of the network depending on the rate at which they draw electricity from the network (known as demand). Demand is typically measured across 15 minute intervals, with demand charges usually applied to a customer's maximum level of demand recorded over the course of a billing cycle.

    The diagram below illustrates this the difference between demand and consumption. Under the two examples shown, the two customers might consume the same amount of electricity, but the customer with the flat load profile has a lower level of demand overall, and a lower peak demand.  

  • How do you decide how much to charge?

    You pay to use the electricity network through the network tariffs we charge to your electricity retailer. Each year we submit an annual pricing proposal to the Australian Energy Regulator (AER) for its approval, which sets out the prices for each of our network tariffs. Those prices are calculated using a methodology approved by the AER which is designed to recover the exact amount of revenue which the AER has approved for TasNetworks to recover in that year.

    The recovery of that annual revenue amount is divided between each network tariff (of which there are around 20) based on things like the number of customers on each tariff, the amount of electricity they’re expected to consume and the demands they typically place on the network. This is done to ensure that different categories of customers, and customers on different network tariffs, make a fair contribution towards the cost of the network

  • How does TasNetworks allocate costs? 

    Our Cost Allocation Method (CAM) outlines the methodologies we use to allocate shared transmission and distribution costs.

    There are a number of costs within our business operations that can’t be easily allocated to either the transmission network or the distribution network. Such costs include the purchase and operation of computer systems (like payroll and financial systems) and the costs associated with the management and administration of the whole business.

    These costs are considered shared as they’re required for the operation of both our transmission and distribution activities. The regulator approved our CAM in 2015 and we’ve used this method for the allocation of shared costs since then.

  • What drives the cost of running the electricity network?

    We own Tasmania’s entire electricity network, which comprises 3,500 circuit kilometres of transmission lines and underground cables, 49 transmission substations, 22,300km of distribution powerlines and underground cables, 230,000 power poles, 18 large distribution substations and 33,000 small distribution substations.

    It's the value of these assets that primarily drives the cost of providing the electricity network. 

    Every household, business and organisation connected to the electricity network makes a contribution towards the cost of building, running and maintaining this infrastructure and the day-to-day cost of servicing our customers and running our business. We also provide other services, such as providing education, advice and information about electrical safety. Find out more about what we do.