Elena Nansen, LEED AP BD+C, WELL AP, is a sustainability specialist at Lionakis, an architectural firm that excels in high performance building design, headquartered in Sacramento, CA. Her focus of work is passive design, daylighting, building performance simulation at early stages of design. She has performed extensive research on building performance simulation tools during the past years and has applied them to multiple Net Zero and LEED projects across the firm.