Game-Changing Innovations: The Latest in Sustainable Technologies, Renewable Energy, and the Battle Against Climate Change (June–October 2024)

Longoae Domingos Tembwa on 21 October 2024

Over the past few months, significant advancements in sustainable technologies have emerged, as industries and governments intensify their efforts to combat climate change. Innovations in renewable energy generation, storage, carbon capture, and the circular economy are moving at a rapid pace, signalling hope in the fight against global warming. Let’s explore some of the most notable developments from June to October 2024, and their potential to reshape global responses to the climate emergency…

Solar Energy: Greater Efficiency and New Solutions

Solar energy continues to lead the renewable energy charge with groundbreaking innovations. In September, European researchers announced a new world record for solar efficiency: 33.7% in tandem perovskite-silicon solar cells. This leap integrates perovskite layers with silicon to capture more sunlight, resulting in higher energy output. These advanced cells could significantly lower solar energy costs, accelerating the transition to renewable power sources globally.

Moreover, solar energy storage is evolving rapidly. In Spain, a project utilising molten salts for thermal energy storage is in development. These salts can store excess solar energy produced during daylight hours, before releasing it at night. Such technology promises to overcome one of the major challenges facing solar power—its reliance on sunlight—and could make solar a 24/7 energy source, enhancing its reliability for large-scale deployment.

Gemasolar Power Plant, Spain, which uses molten salts for thermal energy storage.
Image Credit: Stocksy

Wind Energy: Offshore Expansion and Innovative Designs

As for wind energy, the sector is making significant strides, particularly in offshore projects. In July, Norway inaugurated the world’s largest floating wind farm, which generates 2 gigawatts of power, enough to supply over 1 million homes. Floating wind turbines are a significant development since they can be deployed in deeper waters where winds are stronger and more consistent. This advancement opens new possibilities for wind energy in countries with deep coastal waters, such as Japan and the United States, which are currently limited by conventional offshore wind technology.

Onshore wind technology is also evolving. Spain is testing a bladeless wind turbine design that uses oscillating rods to generate electricity. This turbine operates without the visual and noise pollution associated with traditional turbines, potentially expanding wind energy in urban or densely populated areas where conventional turbines face resistance.

Wind turbines in Spain trialling bladeless designs.
Image Credit: Energy Magazine

Battery Technology: Pioneering Long-Term Energy Storage

Energy storage remains a key challenge for renewable energy, but several promising breakthroughs have emerged. For instance, Iron-air batteries, showcased in August 2024 by U.S. company Form Energy, are generating excitement due to their ability to store energy for days rather than hours. This breakthrough makes iron-air batteries a game-changer for renewable energy systems, enabling more stable energy grids even during periods of low sunlight or wind.

Form Energy’s iron-air batteries.
The basic principle of operation is reversible rusting.
While discharging, the battery breathes in oxygen from the air and converts iron metal to rust.
While charging, the application of an electrical current converts the rust back to iron and the battery breathes out oxygen.
Image Credit: Form Energy

At the same time, solid-state batteries are nearing commercial viability, particularly for electric vehicles. In September, Toyota revealed its prototype solid-state battery, which offers faster charging, longer range, and improved safety compared to lithium-ion batteries. This technology is expected to be integrated into Toyota’s next-generation EVs by 2025 and could significantly boost the adoption of EVs, which are crucial for reducing emissions in the transport sector.

Green Hydrogen: A Clean Energy Frontier

Green hydrogen is rapidly gaining momentum as a clean fuel for industries that are difficult to electrify, such as shipping, aviation, and heavy manufacturing. In July, the European Union launched the Hydrogen Valley initiative, which aims to establish over 100 hydrogen hubs by 2030. These hubs will become centres for hydrogen production, storage, and distribution, thus accelerating the adoption of hydrogen as a sustainable energy source across Europe.

In Australia, the construction of the world’s largest green hydrogen production facility began in August. Set in Western Australia, the facility aims to produce 10 gigawatts of hydrogen annually by 2030, providing clean energy for both domestic use and export. The rise of green hydrogen projects similar to this is expected to drive down costs, providing a viable alternative to fossil fuels.

Circular Economy and Sustainable Materials: Reducing Waste

Advancements in the circular economy are driving significant progress in reducing waste and improving resource efficiency. In September, a consortium of leading electronics manufacturers launched the “Right to Repair” initiative, which aims to extend the life of consumer electronics and reduce electronic waste. This initiative is particularly important for addressing the environmental impact of e-waste, which contributes millions of tons of global waste each year.

At the same time, sustainable materials are seeing a push forward. In August, a new biodegradable plastic alternative made from seaweed and shrimp shells was introduced to the market. This material, which decomposes in a few weeks, could be a major step toward addressing the global plastic pollution crisis. If widely adopted, it could significantly reduce the amount of single-use plastic waste in oceans and landfills.

A new biodegradable plastic alternative using shrimp shells.
Image Credit: HuffPost UK

Conclusion: Progress with Challenges Ahead

The recent months have witnessed significant advancements in sustainable technologies, from improved solar and wind systems to breakthroughs in battery storage and green hydrogen. These developments provide hope for tackling climate change, but scaling these technologies and ensuring global adoption will be critical. Investment, policy alignment, and international cooperation will be key in determining their long-term impact on global emissions.

As the world continues to innovate and push the boundaries of renewable energy and sustainability, recent breakthroughs suggest that the path to a low-carbon future is increasingly within reach. The next decade will be crucial in determining how these innovations can help mitigate the worst impacts of climate change and transform global energy systems for good.

Disabled people risk being left in the cold in a sustainable energy future, University of Leeds researchers warn

GryphonEditorAdm on 13 December 2021

A new study reveals that disabled households in the European Union currently consume 10% less energy than other households, as well as being 5% more likely to experience energy poverty.

University of Leeds researchers warn that disabled people in the EU are already energy disadvantaged and therefore need greater consideration in planning for energy policy aimed at tackling the climate crisis.

The study, published today in Nature Energy, provides a comprehensive analysis of the energy use of disabled households in the European Union — including England — in various energy consumption areas, such as transport, leisure, food and health services. 

Using consumption data from 19 countries in the EU in 2010, Dr Diana Ivanova and Professor Lucie Middlemiss of the Sustainability Research Institute, show that while disabled people use less energy, it is not necessarily through choice and potentially it is at the cost of disabled people not having their needs met for energy and other resources.

Professor Middlemiss said: “Disabled people are largely invisible in environmental policy and practice, and rarely discussed as having particular needs or facing particular challenges. This is a glaring oversight as we try to move towards a more sustainable future.

“Following the Glasgow COP26 climate change conference, we are all thinking more about how our energy consumption should change but that cannot come at the cost of people with different needs.

“It is critical to understand how disabled people are consuming their energy, and if their current needs are being met. This will enable us to reduce energy consumption safely and in a way that allows disabled people to live decent lives.”

Disabled household energy use for basic needs and services, such as food, energy at home, water, and waste, is similar to other households. However, disabled households have lower energy use for leisure services, such as recreation, hotels, restaurants and travel services.

Disabled households also have lower energy consumption for mobility, both in air transport and motor fuel, and lower energy spend on education than other households – suggesting lower opportunities to access education.

It is notable that disabled households tend to under-consume transport and leisure activities even when compared to households with similar incomes.

Disabled households’ limited consumption of leisure services highlights an important inequality, suggesting that disabled people have fewer opportunities to engage in fun and relaxing activities that require energy consumption.

The similar consumption of energy for basic needs between disabled and non-disabled households of the same income is also a concern. Often, disabled people have a greater need for energy in the home: for life-supporting machinery or to keep warmer, or wash more frequently than others.

In the light of these greater needs, the similar consumption levels to other households suggest that energy in the home might be being under-consumed by disabled households.

To date, there is very limited research on the needs and experiences of disabled people in the environmental literature. This is despite the fact that disabled people are regularly supported by governments in developed nations (including EU nations) and seen as important targets of social policy.

Professor Middlemiss said: “Disabled people may also be more vulnerable to climate change consequences such as extreme temperatures or emergency relief being inaccessible.

“When we consider that of the 446 million people living in the European Union, around 100 million are believed to be disabled, disability is a topic that merits more attention from environmental scholars and policymakers.

“These findings also support our earlier call to include the energy poor, in all their diversity, in energy transition planning.”

The paper Characterising the energy use of disabled people in the European Union towards inclusion in the energy transition is published in Nature Energy 13 December 2021 (DOI: 10.1038/s41560-021-00932-4)