Office of the Renewable Energy Regulator

Increasing Australia's renewable electricity generation

Solar Water Heater (SWH) Owners Guide

MRET process for owners of SWH and air-sourced pump water heaters

Options for gaining financial benefits from your RECs

The Mandatory Renewable Energy Target (MRET) scheme does not provide a rebate. The purchase of a solar water heater (SWH) or air-sourced heat pump water heaters may entitle you to renewable energy certificates (RECs) if your SWH is eligible. These certificates are then sold and transferred to liable parties on a market based online system called the REC registry.

For more information about MRET visit - MRET - the basics

There are two options for reimbursement of your RECs under the MRET scheme:

Option 1 - Agent Assisted
Find an agent and assign your RECs to the agent in exchange for a financial benefit which could be in the form of a delayed cash payment or upfront discount on your SWH. A majority of owners take this option.

Option 2 - Individual Trading
Create the RECs yourself, Sell and transfer them in the REC Registry.

RECs defined

The commodity in the REC market is the Renewable Energy Certificate (REC) - each REC represents the equivalent of 1 MWh of electricity generation from an eligible renewable energy source.

The number of RECs a solar water heater is entitled to is calculated by determining the amount of electricity the SWH displaces over a determined period (called a deeming period) given that the installation and ongoing use of the system will reduce demand on the electricity grid.

SWH Process - Options for gaining financial benefits from your RECs

Diagram illustrating the SWH process - options for gaining financial benefits from your recs

Option 1 - Agent Assisted

A majority of owners of solar hot water heaters find it convenient to assign their rights to create RECs at the point of purchase to a registered agent. A registered agent will:

It is important to note that agents list different prices and payment processes for RECs. After buying the RECs from you the agent will register your RECs and usually bundle them with other SWH and small generation unit (SGU) RECs for sale and transfer in the REC Registry

Before entering into any contractual arrangement to assign your right to create RECs:

If you experience a delay in receiving payment for your RECs or your right to create RECs please contact the agent you have agreed to sell them to.

Option 2 - Individual Trading

Step 1: Determine if your new SWH is eligible

  1. Find your model on the Register of solar water heaters
    Visit - Register of solar water heaters
  2. Check if your model has been installed within the eligibility period for the particular model on the Register of solar water heaters. RECs may only be created within 12 months of the installation date.
    SWHs installed on or after 6 October 2007 have a 60-day installation period, ie. The SWH must be completely installed within 60 days from date the first component of the SWH was installed. The installation date is taken to be the day the heater is first able to produce and deliver hot water heated by solar energy.
  3. If your SWH installation meets the above eligibility requirements you are entitled to create RECs. This is regardless of whether the SWH:
    • is installed in a new building or an existing building
    • replaces, or is additional to, any type of existing water heater.

    If you own more than one eligible SWH installation, you are entitled to create RECs for each of those eligible installations.

Step 2: Determine how many RECs your SWH model is entitled to

The number of RECs an eligible installation is entitled to create depends on the following:

The steps to take to determine your RECs once you have this information are:

  1. Determine your postcode zone by viewing the postcode zones for SWHs document

    Visit - Postcode zones for solar water heaters
  2. Download the appropriate Register of solar water heaters spreadsheet

    Visit - Register of solar water heaters
  3. Locate the entry/entries for your SWH model.
  4. Check that the installation date is in an eligible installation period. RECs can only be created within 12 months of the installation date.
  5. Match the postcode zone to your model. The number of RECs you are entitled to will be listed in the column underneath your postcode zone.

Step 3: Become a registered person in the online REC Registry

Once you know the number of RECs you are entitled to you will need to become a registered person in the REC Registry, an internet based registry system that:

A registered person can create, sell and transfer RECs in the REC Registry. To become a registered person in the REC Registry you will need to:

  1. Create an account on the REC Registry. See the Apply for an Account link on bottom right of the REC Registry home page.
    Visit - REC Registry
  2. Complete an Application for Registration and send it to the ORER.
    Visit - Application for Registration
  3. The ORER will notify you via phone when your Application for Registration has been approved and explain the REC Registry process.
  4. Pay a $20 registration fee to complete the registration process. Please DO NOT send any payment to the ORER with this application form - payment of the $20 registration fee is made via your account in the REC Registry. The application fee is GST exempt.

Step 4: Create RECs through the REC Registry

Once your application has been approved you are ready to complete the registration process online and create RECs for your SWH installation.

Visit - REC Registry

The main details required to create RECs include the following:

The REC registry contains online help screens and a REC Registry Support Desk to assist in the use of the Registry.

Step 5: Wait while your RECs are validated

Once you have created your RECs, they will be audited by an ORER officer to ensure they have been created correctly. This may take up to 4 weeks. When your RECs have passed the ORER audit, they will become 'Registered'. Registered RECs are able to be sold and transferred in the REC Registry, and surrendered either voluntarily or meet a liability under the Renewable Energy Electricity (Act) 2000.

Visit - REC Registry

Step 6: Find a buyer for your RECs. Sell your RECs and transfer them in the REC Registry

If you wish to sell your RECs, it is your responsibility to find a buyer and negotiate the price and other terms of sale. Potential buyers may include:

Price and payment date should be key considerations when negotiating the sale of your RECs. You should ensure that:

Once you have found a buyer and negotiated the terms of sale, you will need to transfer the RECs to the buyer through the REC Registry and arrange payment outside the REC Registry. The ORER does not set the price of RECs nor does it get involved in disputes between buyers and sellers. Payment for RECs or the rights to create RECs is a contractual matter between the buyer and seller.

Other Government schemes involving SWHs

Some installations of SWH may be eligible for rebates through other Government schemes. For federal rebates refer to the rebates page of the Department of the Environment, Water, Heritage and the Arts website for details.

Visit - Department of Environment, Water, Heritage and the Arts Rebates 

State Governments may offer rebates/incentives for SWH installation. Contact your State Government for more information

picture of swh owners guide