"To achieve net zero, the AGU design and construction team used four key engineering principles: reduction, reclamation, absorption, and generation. From these four principles came 24 major energy efficiency and energy generation strategies, working together to get the buildings’ energy consumption to a level that could be offset with on-site renewable energy sources." Urban Land Online https://urbanland.uli.org/sustainability/residential-office-developers-preparing-realities-net-zero/