Hawaii Off-Grid Architecture & Engineering (HIOG) is the largest architecture and engineering firm on Maui focusing on general architecture with an emphasis on off-grid water, wastewater, and energy system-specific projects. HIOG provides their clients with sustainable options for materials, methods, and the newest technologies in renewable energy, water, and waste systems. HIOG is the first architecture firm in the world to require all new builds to be net zero at a minimum.