Summary In this conversation, Jason LaFleur discusses the decarbonization pyramid approach to building technologies, emphasizing the importance of energy demand reduction and advancements in mechanical systems. He highlights the challenges posed by grid capacity, particularly with the rise of data centers, and explores innovations in on-site renewable generation and battery storage. The discussion also covers the integration of various systems to achieve net zero buildings, the significance of building performance verification, and offers advice for building professionals to stay updated with industry advancements. Takeaways The decarbonization pyramid provides a holistic approach to building technologies. Energy demand reduction is foundational for achieving net zero buildings. Innovations in mechanical systems can significantly improve energy efficiency. Grid capacity challenges are exacerbated by the rise of data centers. On-site renewable generation and battery storage are crucial for sustainability. Integrating systems is essential for creating net zero buildings. Building performance verification is critical for ensuring technology effectiveness. Collaboration and communication among professionals can enhance project outcomes. Continuous education and adaptation to new technologies are necessary for success. Sharing experiences and lessons learned can benefit the entire industry. Keywords decarbonization, building technologies, energy efficiency, renewable energy, HVAC systems, building performance, net zero, energy demand reduction, mechanical systems, grid capacity