Australia High Voltage Direct Current Hvdc Transmission Systems Market Industry: Market Size & Forecast 2026

HVDC technology is a critical component of Australia's electricity infrastructure, enabling efficient transmission over long distances and interconnecting asynchronous grid systems across the continent. The Australian market sits within the broader Asia-Pacific HVDC landscape, which is one of the fastest-growing regions for this technology globally, driven by expanding power demand and aggressive renewable energy deployment. The market encompasses system components including AC and DC harmonic filters, converters, DC lines, circuit breakers, and associated control and protection systems.

• •Market valued at approximately $1.82 billion in 2025 with a 7.3% annual growth trajectory
• •Covers Line-Commutated Converter (LCC) and Voltage-Source Converter (VSC) HVDC technologies across overhead, underground, and subsea development types
• •Existing major projects include the Basslink interconnector linking Tasmania to mainland Victoria and Murraylink connecting the Snowy Mountains to South Australia

Australia's commitment to renewable energy targets is a primary catalyst for HVDC market expansion, as wind and solar generation increasingly originates from remote regions far from major load centers in the southeast. The need to reinforce the National Electricity Market grid and integrate large-scale battery storage projects requires high-capacity, controllable transmission corridors that HVDC technology uniquely provides. Government policies supporting energy transition and grid investment have unlocked significant capital for new transmission infrastructure across multiple Australian states.

• •National Renewable Energy Target and state-level renewable goals driving investment in long-distance renewable energy transmission corridors
• •Major grid expansion projects such as Project EnergyConnect and other interconnectors requiring HVDC technology for efficient cross-border power transfer
• •Aging infrastructure replacement and the need for higher-capacity links between renewable-rich regions and urban demand centers

Within the Australian market, HVDC systems are segmented by technology type, with Line-Commutated Converter (LCC) systems historically dominating due to their cost-effectiveness for very high-power, long-distance applications. Voltage-Source Converter (VSC) technology is gaining share as it offers advantages for multi-terminal grids, asynchronous interconnections, and offshore renewable integration. Overhead transmission lines constitute the dominant development type, though underground and subsea installations are growing, particularly in Tasmania and along coastal routes.

• •LCC technology holds a significant share for bulk long-distance power transfer, while VSC is expanding in niche applications requiring grid-forming and black-start capability
• •Converters represent the largest component segment, followed by DC lines and harmonic filter systems
• •Victoria, New South Wales, South Australia, and Tasmania represent the highest concentration of existing and planned HVDC assets

What are the recent trends and outlook?

The HVDC market in Australia is expected to sustain its 7.3% annual growth rate through the forecast period, supported by an accelerating pipeline of renewable energy zone connections and interstate grid upgrades. The emerging role of HVDC in forming multi-terminal grids and enabling hybrid AC/DC network architectures is expected to drive innovation and investment over the coming decade. As offshore wind development advances in southern Australian waters, subsea HVDC technology is anticipated to see increased adoption for connecting offshore generation to mainland networks.

• •Projected sustained 7.3% CAGR through 2030-2034 driven by renewable energy zone developments and grid expansion programs
• •Growing adoption of VSC-HVDC for its grid-forming capabilities and suitability for connecting renewable energy zones and battery storage facilities
• •Emerging multi-terminal HVDC grid concepts and hybrid AC/DC transmission architectures expected to shape the next decade of infrastructure planning