In this episode, our guest is Hans-Henning Judek, a German-born, Japan-based lawyer, economist, and energy innovator who has spent over two decades pioneering renewable energy solutions. From early work in maritime wind propulsion and biofuels to his recent ventures in microwave-assisted biofuel production and floating solar technology, Hans-Henning shares a remarkable journey across continents and disciplines.

He explains how lignocellulosic biomass—such as rice straw and sugarcane bagasse—can be converted into carbon-neutral marine gas oil, offering a sustainable alternative to heavy fuel oils currently dominating the shipping industry. We also dive into the challenges and breakthroughs of floating solar systems, including a dive-capable design resilient to typhoons.

Hans-Henning passionately highlights how his innovations can uplift smallholder farmers, reduce stubble burning in places like India, and tackle invasive plants like water hyacinth through thermal carbonization. This episode is a deep dive into practical climate action, energy justice, and engineering ingenuity.

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