As a sustainability specialist, Drew brings an array of engineering skills to projects. His experience includes a wide range of building and system types, with special focus on energy efficiency and renewable power. Drew works closely with project managers to support commissioning related work such as site walk-throughs, system performance testing, and documentation including systems manuals and submittal reviews. He has particular interest in retro-commissioning – specifically how the built environment can be incorporated into net zero energy planning for cities, campuses and institutions. Drew also has experience performing energy modeling for LEED® and Focus on Energy incentives programs.