With 22,700 km² of area, 60 million solar panels, and 3,000 wind turbines, this renewable energy plant could surpass the electricity production of entire countries! With an investment of AUD 100 billion, its energy will be transformed into green hydrogen for export, making Australia a global powerhouse in the energy transition!
The public consultation period for the environmental approval of the Western Green Energy Hub has ended. Now, Australia is facing a historic decision: to approve or not the largest renewable energy plant project in the world. If authorized, this center will not only drive the global transition to sustainable sources but will also position the country as a leader in clean energy generation.
However, the magnitude of the initiative raises questions. What will the environmental impact be? Is green hydrogen the solution of the future? Does Australia really need that much energy? In this article, we explore all the details of this megaproject.
What Makes This Renewable Energy Plant So Grand?

The Western Green Energy Hub is not just an ambitious project: its scale challenges geography. The plant would occupy an area of 22,700 km², surpassing entire territories, such as Slovenia and El Salvador. For comparison, this is equivalent to about 47 countries worldwide.
-
Brazilian scientists are simultaneously advancing two research projects on clean hydrogen and driving solutions that could transform the energy matrix, enhance industrial competitiveness, and accelerate large-scale emission reduction targets.
-
Advancement in renewable energy: A R$ 150 million project launched by Petrobras and Finep aims to create state-of-the-art electrolyzers for green hydrogen, strengthening national research and preparing Brazil to compete in a billion-dollar energy market.
-
Illiterate or semi-literate grandmothers were trained to repair solar systems, open rural workshops, and light up homes that still depended on kerosene.
-
The world has bet on green hydrogen as the fuel of the future, but now faces the side effect: producing 1 kilogram requires about 9 liters of ultrapure water, and the largest projects on the planet are precisely in the driest regions of the Earth, where water is already scarce for people.
In addition to its size, the energy generation capacity is impressive. The hub would feature 60 million solar panels and 3,000 wind turbines distributed between the sea and the mainland, producing an impressive 70 GW of clean electricity.
The Magnitude of the Western Green Energy Hub
The central idea of the project is to combine solar and wind energy on an unprecedented scale. With an investment of AUD 100 billion (USD 60 billion), the plant promises to generate more than 200 terawatt-hours of energy annually, surpassing the production of many countries.
Australia does not need all that electricity. Therefore, much of the energy will be converted into green hydrogen through the electrolysis of desalinated water. The result will be 3.5 million tons of ammonia per year, a highly valued product in the industry and the agricultural sector.
This solution could transform Australia into an exporter of clean energy, selling hydrogen to countries seeking sustainable alternatives to reduce their carbon emissions.
The Importance of Involving Indigenous Peoples
One of the most interesting aspects of the project is its construction on Indigenous lands. The consortium responsible for the plant has reached an agreement with the Mirning Traditional Lands Aboriginal Corporation, representing the native peoples of the region.
The plant will be installed in seven phases, with completion expected by 2050. Throughout this period, the project will not only transform Australia’s energy matrix but could also provide economic and social benefits to local communities.
