Metering and micro embedded generators

Essential Energy

What type of meter is required?
To accurately record the energy you return to the grid your current meter must be replaced. The new meter records energy flows in both directions – from the network to your premises, and from your micro embedded generator back into the grid, ensuring compliance to National Metering standards.
 
There are two methods of metering a micro embedded generator – 'gross' and 'net'. 
 
With gross metering, both your consumption from the distribution network and generation is measured, with all the energy generated recorded in your export register and sent to the grid.
 
With net metering, both your consumption from the distribution network and generation is measured, with only excess energy recorded in your export register and sent to the grid.
 
If you have an existing gross metered system and installing a secondary net metered system, you are required to arrange for the installation of a new meter that registers both gross and net export, as well as consumption from the distribution network.
 
Your choice of metering should be discussed with your supplier/installer/ASP before you commit to purchasing your system as metering upgrades may be costly.
 
Do I have to change my meter?
Yes, your meter will need to be replaced if your current meter is not capable of bi-directional (two-way) energy measurement. National Market rules state that when bi-directional energy flows occur a meter capable of measuring this energy must be installed. This metering arrangement ensures all energy flows comply with National Market standards.
 
How do I get a gross or net meter?
Contact an Accredited Service Provider (ASP) – they will order a new gross or net meter from Essential Energy and arrange for its installation. Costs associated with the purchase and installation of the meter are your responsibility.
 
Please discuss these costs with your chosen ASP. To find an ASP click here.

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