Dave McColl, Executive Director of Stanford Climate Ventures, runs a project-based program that helps students build climate startups. Carla Pinzon, founder of Expand Power, builds solid-state transformers for modern grids. Raj Tilwa, co-founder of Focal, designs AI-enabled localized heating for commercial spaces. Nico Pinkowski, founder of Nitricity, makes decentralized organic fertilizer from air, water, renewables, and waste. They discuss discovery-driven company building, market pivots, and long paths to product-market fit.