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Planet Classroom Network Spotlights Solar Pioneer on the Path to 100% Clean Energy

By Dr. Matthew Lynch · August 1, 2026 · 4 min read

Planet Classroom Network Spotlights Solar Pioneer on the Path to 100% Clean Energy

In an inspiring episode from its acclaimed global series, Net Zero Speaks, the Planet Classroom Network recently showcased the insights of Professor Andrew Blakers AO FAA FTSE FRSN. A distinguished figure from the Australian National University and a co-developer of the groundbreaking PERC solar cell technology, Professor Blakers shared his optimistic view on achieving a future powered entirely by clean energy. This feature underscores the Planet Classroom Network's commitment to empowering young minds with knowledge and fostering crucial conversations about our planet's future.

The Planet Classroom Network, in collaboration with the Protect Our Planet (POP) Movement, continues to provide a vital platform for youth climate advocates to engage with leading experts. By hosting discussions like this, the organization helps demystify complex scientific and environmental topics, making them accessible and engaging for a global audience of students, parents, and educators. This particular episode, hosted by youth climate advocate Ivan Ransom, delves into a question on many minds: Can the world truly run on 100 percent renewable energy?

The Vision of a 100% Clean Energy Future

Professor Blakers' answer, according to the Planet Classroom Network, is a resounding yes. He asserts, "We have everything we need. We don't need to invent anything. It's just a matter of getting out and doing it." This powerful statement reframes the challenge of transitioning to clean energy from a technological hurdle to a matter of collective action. For students learning about environmental science and sustainable development, this perspective can be incredibly encouraging, highlighting that solutions are within reach.

Throughout the conversation, Professor Blakers emphasizes that the technological barriers to a clean energy future have largely been overcome. He envisions a world benefiting from "clean, cheap energy forever," noting that many countries possess abundant solar and wind resources, effectively making them "their own Saudi Arabia of solar and wind." His decades of research illustrate how diverse renewable sources, combined with advanced storage solutions like pumped hydro and batteries, can create reliable, affordable, and zero-carbon energy systems on a global scale.

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From Solar Breakthroughs to "Gravity Batteries"

Professor Blakers is renowned for his role in developing the Passivated Emitter and Rear Cell (PERC) solar cell. According to the Planet Classroom Network, this innovation significantly boosted solar panel efficiency and played a pivotal role in the widespread adoption of solar energy worldwide. This technological advancement laid the foundation for much of the modern solar industry and contributed to the dramatic reduction in solar energy costs, making it a more viable option for communities globally.

His current work focuses on large-scale renewable energy systems and the Global Pumped Hydro Atlas. This ambitious project identifies hundreds of thousands of potential energy storage sites across the globe, far exceeding the capacity required for a fully renewable energy system. These pumped hydro systems, often referred to as giant "gravity batteries," store energy by moving water between reservoirs at different elevations. As Professor Blakers explains, these systems are crucial for balancing the intermittent nature of solar and wind generation, ensuring grid reliability and affordability.

The episode also tackles common misconceptions about renewable energy, addressing concerns about land use, raw materials, waste, and grid stability. By bringing these expert insights to a broad audience, the Planet Classroom Network provides valuable educational content that can help students, parents, and teachers better understand the practicalities and potential of a sustainable future.

Empowering the Next Generation of Innovators

For over fifty episodes, Net Zero Speaks has served as an essential bridge, connecting young climate leaders with influential scientists, policymakers, engineers, and environmental advocates. This initiative by the Planet Classroom Network is invaluable for fostering environmental literacy and inspiring the next generation to engage with critical global issues. Such discussions not only inform but also empower young people to become active participants in shaping a sustainable future.

COSMIQ — Demo — Teacher personas

Platforms like the Planet Classroom Network provide rich educational content that complements traditional learning. For students eager to explore these topics further or prepare for exams related to science and environmental studies, free resources like COSMIQ — free voice AI tutoring, free forever for every K-12 student — can offer personalized support. Students can also find a wealth of information and practice opportunities at the free practice hub by grade and subject, helping them deepen their understanding of complex scientific concepts, including those related to renewable energy and climate change.

The Planet Classroom Network's dedication to featuring leading voices like Professor Andrew Blakers is a testament to its mission of educating and inspiring. By highlighting the feasibility and benefits of a 100% clean energy future, the organization not only celebrates scientific achievement but also cultivates hope and determination among its global audience.

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