Alternative and clean energy sources in the aluminium industry are a hot topic inducing continuous research and development and leading to process innovation. But did you know that lightweight metal also plays a vital role in renewable energy? From solar panels to wind turbines, aluminium is no longer a stranger to the renewable energy sector in today's time. But how did aluminium become so valuable in this sector?
The rising popularity of aluminium in the renewable energy sector
For a long time, aluminium has been celebrated across industries for its unique and irreplaceable properties, and the renewable energy sector is no exception. Solar, hydropower, and wind energy are three essential forms of clean energy, and today, aluminium is used for all these energy sources.
Aluminium solar panels and frameworks elevating the sun-power
Aluminium in the solar power sector is boosting innovation. Solar panels made from aluminium are lightweight and have properties like good conductivity, reflectivity, sturdiness, and durability. A Dutch offshore floating solar company, Solar Duck, developed floating photovoltaics with aluminium. The lightweight metal allows the structure to stay three metres above the water and does not corrode or rust due to moisture. After successfully making and demonstrating the prototype, Solar Duck received funding worth €4M for commercialising the floating photovoltaics models in 2023.
Extruded aluminium products in wind energy production
Why is aluminium a top choice for wind turbines when there are other materials like copper, steel, or wood? Because it is easier to work with aluminium and its extruded products. Here are four fantastic reasons:
- Aluminium is 70% lighter than copper. Therefore, the wind turbines are easier to install.
- Aluminium is way cheaper than copper. Hence, using aluminium lowers the project cost and makes clean energy more accessible.
- Aluminium extrusions offer an excellent strength-to-weight ratio, useful for creating larger and more efficient blades. Blade size determines the efficiency and capability of wind turbines.
- Finally, aluminium's corrosion-resistant properties make it a key element in offshore wind energy projects where the atmosphere is humid and salty.
Hydropower infrastructure facilitated by aluminium extrusions
Aluminium is known for its corrosion-resistant properties. Turbine blades made from lightweight aluminium extrusions are efficient and durable, and they can withstand the force of water. Aluminium extrusions are also used in other parts and frameworks, such as intakes, structures, penstocks, and more. Aluminium is valued in hydropower generation mainly because of its lightweight and durable characteristics.
But why is aluminium's role so crucial in the renewable energy sector? Governments, companies, and consumers worldwide are pushing towards sustainable and eco-friendly energy options, moving past traditional fossil fuels. For instance, by 2030, India aims to generate 50% of its energy from clean and renewable sources. Moreover, they strive to attain 500 gigawatts of non-fossil energy capacity. Currently, India is the 4th largest nation with installed onshore wind energy infrastructure. At this vital juncture, lightweight, innovative, and versatile solutions like extruded aluminium are pivotal.
To summarise
According to the latest report in January 2024, the daily average production of aluminium in China amounted to 194,800 tonnes. Last year, during the same period, it was 190,300 tonnes per day. Therefore, it is clear that the demand for aluminium is on the rise as the lightweight metal is highly sought after in different industries.
Decarbonisation and sustainability are no more ornamental topics. They have become the unavoidable truth, and clean energy production is a key component in achieving prolonged sustainability and helping energy-intensive sectors become more eco-friendly. Aluminium is aiding the much-necessary clean energy transition. However, will the rising demand for aluminium compel manufacturers to resort to old energy-intensive production methods? Will the aluminium industry reach its net zero goals and lower its carbon footprints, and how well would it adopt renewable energy for process innovation?
Gain deeper insights into utilising aluminium extrusion within the renewable energy sector by accessing AL Circle's latest industry-focused report, "The World of Aluminium Extrusions – Industry Forecast to 2030". This comprehensive report offers invaluable analysis and forecasts regarding the extensive applications of aluminium extrusions, particularly within the renewable energy domain.
