How Vibhawa Consultants Power the Snowy 2.0 Project with Cutting Edge Advanced Power System Modelling & Simulation

Today, we are going to discuss about Electrical Consultancy for Snowy 2.0 by Vibhawa Consultants. Today, the global energy sector is undergoing a massive transformation, with renewable energy projects taking the lead in providing sustainable, reliable, and efficient power. Among these initiatives, Australia’s Snowy 2.0 Project stands out as one of the largest and most ambitious pumped hydroelectric projects in the world. As a company specializing in electrical consultancy, we, at Vibhawa Consultants, played a critical role in modelling and optimising the electrical infrastructure of this landmark project.

In this blog, we’ll take a closer look at Vibhawa’s contribution to the Snowy 2.0 Project through advanced ETAP modelling and why our expertise in electrical engineering is trusted worldwide.

The Snowy 2.0 Project

The Snowy 2.0 Project is an extension of the original Snowy Mountains Hydro-electric Scheme and represents a transformative step in Australia’s energy future. The project involves connecting the existing Tantangara and Talbingo dams through an underground network of tunnels and a power station.

Snowy 2.0 is designed with a total generation capacity of 2,200 megawatts to store and release energy on demand, providing critical grid stability and supporting renewable energy integration. The project also holds 350,000 MegaWatt hours of energy storage. This is enough to power around 3 million households for an entire week!

The infrastructure includes over 100 substations, extensive underground tunnels, and advanced electrical systems. Ensuring that this network is safe, efficient, and reliable needs advanced engineering expertise. That’s where Vibhawa Consultants stepped in.

Vibhawa’s Role in Snowy 2.0

The Snowy 2.0 electrical modelling contract was presented to us by Future Generation Joint Venture, the main contractor handling the project’s civil and electro-mechanical works.

Our ETAP modelling team was responsible for simulating and analysing the electrical network of over 100 substations, covering multiple voltage levels (voltage classification as per Australian standards), including:

• • • High Voltage: 33 kV, 22 kV
    • Medium Voltage: 11 kV, 1,000 V
    • Low Voltage: 415 V

Here, the objective was to ensure the network could handle high loads, operate safely, and remain resilient in various operational scenarios.

Key Areas of Focus

Load Flow Analysis

Our team conducted comprehensive load flow simulations to determine the optimal distribution of electricity across the substations. This ensured that power could be delivered efficiently during peak and off-peak periods including seasonal variations.

Short Circuit Analysis

Short circuit study is a critical study which can impact the upstream grid as well as the project infrastructure during a fault. Vibhawa’s engineers modelled fault scenarios to identify potential risks (including worse case scenarios) and recommended solutions for mitigation. This included identifying the optimal making and breaking capacities of circuit breakers both in low voltage and high voltage level. 

Protection Coordination Study

Proper coordination of protective devices, such as circuit breakers and protection relays, is critical to prevent cascading failures. We ensured that all protection systems were coordinated accurately to improve safety and reliability.

Arc Flash Studies

Arc flashes pose serious risks to people and equipment. Our ETAP modelling included arc flash analysis to assess hazard levels and implement safety measures.

By combining these elements, our Vibhawa team ensured that Snowy 2.0’s electrical network is robust, efficient, and safe, supporting one of the world’s largest renewable energy storage systems.

Why is ETAP Modelling Critical for Mega Energy Projects?

ETAP (Electrical Transient Analyzer Program) is a leading software tool for power system modelling, simulation, and analysis. For a complex project like Snowy 2.0, ETAP provides:

• Accurate simulation of electrical networks under normal and fault conditions.
• Predictive analysis to optimize load flow, short circuits, and protection schemes.
• Safety evaluation through arc flash and protective device coordination studies.

We were able to simulate real-world operating scenarios via ETAP to identify potential issues before they arise, and recommend engineering solutions to improve performance. This proactive approach saves time, reduces costs, and ensures long-term system reliability.

Challenges and Solutions in Snowy 2.0 Modelling

Working on Snowy 2.0 was both challenging and rewarding. Below are some of the key challenges we faced:

1. Managing Multiple Voltage Levels

The project involved a diverse range of voltage levels (33kV down to 415V), which required meticulous modelling and analysis to ensure proper integration and coordination.

2. Large-Scale Network Simulation

The project included over 100 substations. So, simulating the entire network in ETAP required detailed planning and advanced technical expertise.

3. Ensuring Safety and Compliance

Arc flash and short circuit risks had to be carefully modelled to comply with international standards in electrical safety.

Vibhawa Consultants addressed these challenges through a highly skilled ETAP team, systematic testing, and a rigorous validation process. Through this, we were able to deliver reliable results for the Future Generation Joint Venture and Snowy Hydro.

The Impact of Vibhawa’s Work on Snowy 2.0

By modelling the Snowy 2.0 electrical infrastructure, Vibhawa Consultants has helped ensure:

• Reliable power distribution across high, medium, and low voltage networks.
• Improved safety for personnel and equipment through arc flash and short circuit analysis.
• Efficient grid performance, supporting renewable energy integration and peak demand management.
• Long-term sustainability of one of Australia’s most significant energy projects.

This work highlights the value of professional electrical consultancy in large-scale renewable energy projects and positions Vibhawa Consultants as a trusted partner for complex electrical system testing and commissioning.

Ready to Level Up Your Projects with Expert Electrical Consultancy?

Vibhawa Consultants is proud to provide world-class electrical engineering services not just in Sri Lanka, but across the globe. From renewable energy projects in Australia to industrial infrastructure in the Maldives, Qatar, and Austria, our projects showcase international experience, advanced ETAP modelling, and proven engineering expertise to deliver safe, efficient, and reliable electrical solutions for large-scale projects.

Whether it’s renewable energy, industrial infrastructure, or complex electrical networks, our team ensures your systems operate optimally from day one. Contact us today to discuss your project and discover how we can elevate your electrical infrastructure.

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