An audit of industry compliance found less than one-third of inverters in new solar, battery and EV charging systems have been correctly installed.
The Australian Energy Market Operator, AEMO, commissioned a random audit of inverters installed over the past 12 months and found that only 28% of systems with visible settings had the correct settings,.
55% of the inverters tested displayed settings that were incorrect in some way.The remaining 17% were only partially correct or had some settings not visible.
New rules came into effect for inverters in December 2021, to gain greater control and visibility over distributed energy resources.
The new settings give behind the meter resources - ranging from rooftop solar to electric vehicles - the ability to respond to conditions on the grid that might otherwise cause blackouts, power instability or PV systems to trip and shut down
The non-compliance of inverters increases the threat that distributed energy resources will destabilise the grid.
AEMO is calling on industry and regulatory groups to work together to achieve upwards of 90% compliance on inverter standards by the end of this year.