The document discusses using human-centered design to develop an energy efficiency solution for existing commercial buildings. It describes conducting interviews and observations to identify key problems around lack of transparency and accountability in HVAC management. This led to designing a monitoring system that provides actionable data. A subscription-based business model was selected and tested with potential customers to focus initially on medium-sized buildings and target contractors. The goal is to disrupt the industry by controlling data and developing new revenue streams around transactions and data analytics.