By Jennifer Reeves, GE Digital product manager – Geospatial Asset Management for Electric Utilities & Douglas Moore, GE digital asset management growth leader
When The Matrix came out in 1999, it told the story of two worlds—a real world, and a digital simulation. Over two decades later, while that vision might not have come true generally, it is now a reality for grid operators, and it’s helping to keep electrical grids operating safely and reliably in the ever more challenging conditions we are continuing to see in Australia. Today, digital models of entire electrical grids—often referred to as a network digital twin—have never been more accurate or more powerful. And this is important. With increasing penetration of distributed energy resources (DERs), the accelerating pace of grid modernisation, and the extreme data influx from IOT devices, the complexity of managing the digital model of the grid is a growing challenge for all utilities.
Today’s grid management relies heavily on a myriad of informational and operational technology tools and siloed systems, including SCADA, AMI, DERM, ADMS and GIS, to name a few. Network designers and mapping departments use the GIS to plan and update the normal state of the network in one silo. Control room operators monitor the real-time state of the network in another silo. And the OT support team needs to continuously maintain the disparate representations of the electric grid across all silos.
This current mode of operation leads to data issues. Network documentation tends to be incomplete, often lacks data integrity, and can be electrically invalid. For many digital utilities their electronic map data was historically created with little or no quality rules, controls or standards, and tended to be more of a visualisation of the network rather than a connected network of assets.
The historical practice of working in different silos across the enterprise has resulted in redundant and inconsistent views of the network data and variable ways to address the same problem between regions and departments. Duplicate data capture with no common foundational view is operationally inefficient and inevitably leads to data errors, omissions and most detrimentally, potential safety issues for workers in the field.
Increasing regulatory pressures and incentive programs require the foundational knowledge of a digital utility’s network model to be consistently shared and collaborated upon across the enterprise to support the business and their reliability and safety objectives. Utilities need to do more with fewer resources through efficient processes and effective data governance in order to gain more value out of their network, both operationally and digitally. Coupled with the growing complexity of DERs and renewables, as well as today’s accelerated pace of grid modernisation, all utility companies must get a handle on these challenges.
Bringing Together the GIS & ADMS
An integrated network-based GIS and ADMS solution—with a shared, consistent view of the network model—builds a strong foundation for evolving with the rapidly changing landscape of the electric industry.
With a network-based GIS managing the evolution of the network model, the digital utility can begin to break down the silos and build an ecosystem where data from disparate systems can be orchestrated into a utility data fabric to create a shared, consistent view of the network model, enabling the network digital twin. Utilities will also have the flexibility and options to leverage the knowledge about a digital utility’s assets in new and expansive ways. For example, this common utility data fabric can be used by advanced analytics to simulate weather impacts and improve storm preparedness and outage response, or understand how the network will behave under different load and future DER growth scenarios.
Related article:Hydro Tasmania hunting for new CEO
A network-based GIS that incorporates workflow and data quality management throughout the plan, design and build stages of the asset lifecycle, coupled with the ability to share a consistent, validated view of the as-built network for use by the ADMS to operate and control the network, can reduce integration costs up to 30 per cent and reduce data synchronisation errors up to 50 per cent.
Delivering a shared source of truth
Bringing together an electric utility’s GIS and ADMS can deliver a foundational network view, ensuring:
- Accurate electrical connectivity,
- A consistent and shared network model representing the as-built and as-operated statuses, and
- A solid understanding of relationships and dependencies between assets.
Integrating a utility’s ADMS and GIS systems enables network model orchestration—a single network model across a common data fabric, improved data quality governance and a path to a self-learning model for T&D. Network model orchestration across the enterprise will enable the utility to gain the benefits of an end-to-end solution that continues to evolve toward enabling network level optimisation.