Sustainable Performance Solutions LLC (SPS) is a South Florida-based engineering firm with its practice focused on energy and sustainability consulting. The firm provides all levels of energy audits; general energy efficiency and sustainability studies and consultation; energy modeling; assistance with Green Globes, LEED®, Florida Green Building Coalition, Energy Star, and Florida Water Star certifications; and high-performance building commissioning services. The firm’s principal, Lawrence (Larry) Clark, previously served as Director of Corporate Business Development at Hill York – at that time, Florida’s largest independently-owned mechanical contractor – and was actively engaged with its Hygreen Energy Solutions group from launch in early 2008 until he formed SPS in September 2010. Clark’s previous experience includes such diverse assignments as president, vice president, and regional manager at MEPCO (formerly the Dunham Division of Dunham-Bush); and regional manager at Vapor Power, when it was part of Westinghouse Air Brake. He is a graduate engineer (B.S.E.E.), a certified Green Globes Professional, a LEED® AP with O+M specialty credential, a Certified Commercial Energy Auditor; a Florida Water Star Inspector; and a Qualified Commissioning Process Provider (QCxP). Clark is the author of more than two dozen HVAC and energy related articles, is a frequent presenter and lecturer on a variety of green building topics, and is on the faculty of Lorman Education Services. He also writes the semi-monthly “Clark’s Remarks” sustainability column for HPAC Engineering and is a member of various professional organizations including ASHRAE and IEEE (Sr. Member). He previously served in a number of volunteer positions on the USGBC, including 2011-2012 chair of Broward Green Schools Committee, 2014-2015 Chapter Advocacy chair, 2015-2018 Board member and Broward Chapter vice-chair. In addition, he serves on HPAC Engineering’s Editorial Advisory Board and previously served on the Smart Growth Partnership Board of Directors. Clark has also served on the Green Building Certification Institute (GBCI) Education Review Team, served six years on the City of Pompano Beach Recycling & Solid Waste Advisory Committee, six years on the City of Fort Lauderdale Sustainability Advisory Board (Vice-Chair 2018-2020), and six years on the Broward County Consumer Protection Board. Most recently, Clark was a member of the ANSI Consensus Body and chaired the Energy Subcommittee in the development of Standard BSR/GBI 02-202X, Green Globes Assessment Protocol for Existing Buildings.