Victoria, Australia, Partners with Energy Dome to Develop First 20MW/200MWh 10-Hour CO2 Battery Storage Facility

July 12, 2026

Energy Storage News Australia

Overview

The State Electricity Commission (SEC) of Victoria, Australia, and Italian cleantech firm Energy Dome announced plans for Victoria’s first 10-hour Long-Duration Energy Storage (LDES) facility in the Latrobe Valley. This 20MW/200MWh CO2 Battery system will provide 10-12 hours of continuous power, leveraging Energy Dome’s unique CO2 compression technology to store energy without reliance on critical minerals. The project aims to enhance grid stability and integrate more renewable energy into Victoria’s power network.

In Depth

Key Findings

The State Electricity Commission (SEC) of Victoria, Australia, in partnership with Italian clean technology company Energy Dome, has announced plans to develop Victoria’s inaugural 10-hour Long-Duration Energy Storage (LDES) facility. Located in the new energy innovation district of the Latrobe Valley, this project will feature a 20MW/200MWh CO2 battery system, capable of providing continuous power for 10 to 12 hours.

Technical Details

Energy Dome’s CO2 Battery technology, selected for this project, represents a sustainable long-duration storage solution that does not rely on lithium or other critical minerals, offering an attractive alternative to conventional battery chemistries. The system operates by compressing CO2 gas into a liquid state during charging, storing energy in this dense form. When power is needed, the liquid CO2 is expanded through a turbine to generate electricity. This closed-loop process reuses the CO2 without atmospheric emissions, making it an environmentally benign technology. Compared to pumped-hydro or compressed-air energy storage (CAES), CO2 batteries offer greater geographic flexibility and competitive deployment costs.

Background & Context

Victoria is aggressively pursuing its renewable energy targets, with significant deployments of solar and wind power. However, the intermittent nature of these sources necessitates robust and reliable LDES solutions to maintain grid stability and ensure consistent power supply. This project will play a crucial role by storing excess renewable energy during periods of high generation and discharging it during peak demand or low renewable output. The SEC’s investment underscores Victoria’s commitment to building a resilient, clean energy grid and accelerating its transition away from fossil fuels.

Strategic Significance & Outlook

The Latrobe Valley CO2 battery project serves as a crucial demonstration of LDES technology for Victoria, paving the way for future large-scale energy storage deployments across the state and potentially broader Australia. Its success will validate the commercial viability and scalability of CO2 battery technology globally. With its independence from critical minerals, the technology offers enhanced supply chain security and a sustainable pathway for energy transitions. Energy Dome is poised to solidify its position in the LDES market through this high-profile deployment, encouraging further adoption of CO2 battery solutions worldwide.

Source: https://www.energy-storage.news/sec-and-energy-dome-to-deploy-20mw-240mwh-compressed-co2-energy-storage-system-in-victoria-australia/

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