NEM SLD

Overview

NEM SLD is an interactive geographic schematic of the Australian electrical system (transmission and sub-transmission). This project visualizes the National Electricity Market (NEM) Single Line Diagrams in an accessible web format.

Features

• Geographically Relative: Substations are positioned at their approximate real-world locations relative to each other (though transmission lines may not follow exact geographic routes)
• Realistic Switchgear Layout: The layout of switchgear is based on the real-world arrangement of substations, with some simplifications for clarity
• Interactive Navigation: Click to pan around, scroll to zoom in/out, or use the search bar (Ctrl+F) to find substations by name
• Asset Information: Hover on generators and assets to view additional information

Current Status

⚠️ Work in Progress ⚠️

Currently, only parts of Victoria have been implemented. More regions of the National Electricity Market will be added in future updates.

Data Sources

• AEMO NEM SLDs: The Australian Energy Market Operator used to publish NEM SLDs but these haven't been updated since 2019
• Open Infrastructure Map: Open Infrastructure Map has been used for some geographic data
• Digital Atlas Australia: Transmission Substations map has also been used for some geographic data

Usage

1. Open the index.html file in a web browser
2. Navigate the map using your mouse:
   • Click and drag to pan
   • Scroll to zoom in/out
   • Use Ctrl+F to search for specific substations
3. Hover over generators and assets to view additional information

Contributing

This diagram is community-sourced and contributions are welcome! You can help by:

1. Reporting Errors: If you notice any inaccuracies or have updates, please:

   • Email updates@nemsld.com, or
   • Post an issue on GitHub

2. Providing Information: Share:

   • Details about errors or changes (references are helpful for verification)
   • Public information about substation layouts or locations
   • Information about new generating systems (once built, not just at committed stage)

3. Code Contributions: For those wanting to modify the codebase directly:

   • Fork the repository
   • Make your changes (substations are currently defined in substation_definitions.yaml)
   • Submit a pull request

License

This project is free and open source. See the license file for details.