The White Cliffs Solar Power Station, located in New South Wales (NSW), was the first commercially operated solar thermal power plant in Australia and one of the earliest of its kind in the world.
Built in 1980 by a team from the Australian National University, in the small town of White Cliffs, the plant is being considered for inclusion in the state heritage register.
The NSW government opened a public consultation on its Have your say portal to receive opinions on the proposal. The survey will be available until May 8, after which the Heritage Council will evaluate the responses.
Technical Features
The plant was installed in a location with the highest level of solar insolation in the state. It consists of 14 parabolic dishes, each covered with more than 2,000 mirrors that concentrate the solar rays onto a collector. The generated energy produced superheated steam, which drove a single-phase alternator of 37 kVA, supplying electricity to the town.
In 1997, the plant was converted to a system of water-cooled photovoltaic cells, although it eventually closed in 2005. A year later, Engineers Australia placed a heritage marker at the site, recognizing it as “possibly the world’s first commercial solar power station.”
Importance of Solar Thermal Energy in Australia
Concentrated Solar Power (CSP) is key to the country’s energy transition:
- Storage and demand management: allows heat to be stored in molten salts and generate electricity even at night, solving the intermittency of photovoltaics.
- Grid security and stability: provides base load energy, complementing the high penetration of residential solar panels.
- Abundant natural resource: Australia has one of the highest levels of solar radiation on the planet.
- Emission reduction: decreases dependence on coal and gas, still predominant in the energy matrix.
- Versatility: in addition to electricity, it can provide industrial heat, reducing the use of fossil fuels in other sectors.
Heritage and Symbolic Value
The White Cliffs Solar Power Station represents a technological and scientific milestone in Australia’s energy history. Its inclusion in the heritage register would not only preserve a pioneering site but also serve as a symbol of innovation in renewable energies and commitment to sustainability.
The proposal to declare the White Cliffs Solar Power Station as heritage recognizes its role as a world precursor of solar thermal energy and as a reference in the transition to a cleaner energy model. In a context where Australia seeks to decarbonize its electrical grid and leverage its abundant solar resource, this recognition reinforces the importance of technological memory and the preservation of milestones that paved the way towards sustainability.
