Renewable Energy Growth Vital for Electric and Hydrogen Economies

Brightlands Chemelot Campus, September 22, 2025 – Increased renewable energy generation is essential for a sustainable electric future and a functional hydrogen economy, according to Prof. Dr. Dirk Uwe Sauer. Speaking at a lecture, Sauer stated that current renewable energy capacity is insufficient to meet rising global electricity demands and reduce carbon dioxide emissions effectively. He urges significant expansion of wind, solar, and hydropower resources. Sauer prioritizes direct electrification through technologies like heat pumps and battery-electric vehicles to maximize carbon dioxide reduction. He acknowledges hydrogen's role in the energy transition but cautions that high production costs may limit its availability. Instead of relying on hydrogen imports, Sauer advocates for domestic production during periods of surplus renewable energy generation. He suggests allocating hydrogen to sectors with long-term investment potential, such as steel and chemical manufacturing, rather than using it for mass transit or residential heating. Sauer emphasizes the need for robust renewable energy infrastructure and public acceptance of related policies. Rebuilding public trust in energy initiatives requires clear and consistent policy signals. The selection of cost-effective technologies will also be crucial for a successful transition to a more sustainable energy system. He warns against neglecting renewable energy expansion, as it will hinder the development of both electric and hydrogen-based economies.