Compare grid codes

The number and complexity of generation interconnections have increased during the energy transition. In an effort to ensure the adequate performance of generating systems and to ensure efficient design principles by utilising standards where possible, countries implement generator performance grid codes.

We provide and maintain a library of templates for different grid codes and this page provides a comparison of these different grid codes. The goal is to help you meet local grid codes in different regions by referencing the grid codes in a region with which you're more familiar.

Topic	Australia: NEM	Australia: WEM
Definitions	NER - Chapter 10 Glossary	WEM Rules - Appendix 12.1 Definitions
Active power capability	NER - S5.2.5.1 Reactive power capability	WEM Rules - Appendix 12.2 Active Power Capability
Reactive power capability	NER - S5.2.5.1 Reactive power capability	WEM Rules - Appendix 12.3 Reactive Power Capability
Active power control	NER - S5.2.5.14 Active power control	WEM Rules - Appendix 12.5 Active Power Control
Frequency control	NER - S5.2.5.11 Frequency control	WEM Rules - Appendix 12.6 Inertia and Frequency Control
Voltage and reactive power control	NER - S5.2.5.13 Voltage and reactive power control	WEM Rules - Appendix 12.4 Voltage and Reactive Power Control
Response to frequency disturbances	NER - S5.2.5.3 Response to frequency disturbances	WEM Rules - Appendix 12.7 Disturbance Ride Through for a Frequency Disturbance
Response to voltage disturbances	NER - S5.2.5.4 Response to voltage disturbances	WEM Rules - Appendix 12.8 Disturbance Ride Through for a Voltage Disturbance
Response to voltage phase angle disturbances	NER - S5.2.5.16 Voltage phase angle shift	---
Response to contingencies	NER - S5.2.5.5 Response to disturbances following contingency events	WEM Rules - Appendix 12.9 Disturbance Ride Through for Multiple Disturbances
Response to multiple disturbances	NER - S5.2.5.5 Response to disturbances following contingency events	WEM Rules - Appendix 12.9 Disturbance Ride Through for Multiple Disturbances
Response to partial load rejection disturbances	NER - S5.2.5.7 Partial load rejection	WEM Rules - Appendix 12.10 Disturbance Ride Through for Partial Load Rejection
Response to quality of supply	NER - S5.2.5.6 Quality of electricity generated and continuous uninterrupted operation	WEM Rules - Appendix 12.11 Disturbance Ride Through for Quality of Supply
Quality of electricity generated	NER - S5.2.5.2 Quality of electricity generated	WEM Rules - Appendix 12.12 Quality of Electricity Generated
Impact on network capability	NER - S5.2.5.12 Impact on network capability	---
Protection systems	NER - S5.2.5.8 Protection from power system disturbances NER - S5.2.5.9 Protection systems that impact on power system security NER - S5.2.5.10 Protection to trip plant for unstable operation	WEM Rules - Appendix 12.13 Generation Protection Systems
Remote monitoring and control	NER - S5.2.6 Monitoring and control requirements	WEM Rules - Appendix 12.14 Remote Monitoring Requirements WEM Rules - Appendix 12.15 Remote Control Requirements
Communications equipment	NER - S5.2.6.2 Communications equipment	WEM Rules - Appendix 12.16 Communications Equipment Requirements
Low system strength operation	NER - S5.2.5.12 Short circuit ratio	---
Model quality	AEMO - Power system model guidelines	WEM Rules - Appendix 12.17 Generation System Model Western Power - Facility Model Guidelines