Marcos Casimirri
M.Eng., CEM, P.Eng.
CBCL | Senior Mechanical Engineer, Energy Lead
Speaker
Track G: Energy Data, Tracking, and Analysis
Session G4: Real Time Energy Modeling and Monitoring
September 19, 2025 | 9:00 am - 9:30 am
Best Practices for Scoping and Creating Building Energy Models: Tools, Standards, and Strategies for Effective Energy Analysis
Building energy models are powerful tools for various energy studies, from analyzing individual energy conservation measures (ECMs) to assessing deep energy retrofits. However, the time and effort required to create an energy model depend on its level of detail and data availability. Therefore, selecting the right tools and understanding the energy analysis requirements are key to streamlining the process and ensuring accurate results.
ASHRAE standards, such as 90.1 and 62.1, provide default values when specific data are unavailable, such as plug loads and ventilation rates. ASHRAE 14 offers guidelines for calibrating models with real-world data, which is essential for establishing accurate baselines to evaluate ECMs individually or in combination for Level 3 energy audits and decarbonization studies. Additionally, tools like RetScreen provide fast and reliable solutions for energy savings calculations in scoping audits.
This presentation explores best practices for scoping and developing cost-effective, reliable building energy models based on project objectives. It will cover essential standards, tools, and data sources that enhance modeling efficiency and accuracy. Real-world examples will illustrate how well-scoped energy models support various studies, including ECM analyses, performance comparisons, energy audits, deep energy retrofits, and decarbonization planning
Speaker Bio
Marcos Casimirri is a Senior Mechanical Engineer, Energy Lead, C.E.M. and valued partner at CBCL. With over 18 years of professional experience, Marcos has cultivated expertise in the analysis and implementation of energy efficiency measures, decarbonization pathways for building portfolios and renewable energy projects. He holds a Master of Engineering from Dalhousie University and a BSc. in Mechanical Engineering from UNEXPO University in Venezuela.
Marcos has led and managed a wide variety of projects related to deep energy retrofits and decarbonization pathways for the private sector and multiple level of governments in Canada, Latin America and the Caribbean. He has successfully completed and managed multiple building energy modeling studies, energy audits, energy management programs, and renewable energy projects for a broad range of facilities. He has also played an instrumental role in supporting multilateral development banks in advancing energy projects to shape a greener future.
As an active member of AEE and Engineers NS, Marcos is deeply committed to the advancement of sustainability and energy efficiency. Beyond his professional activities, Marcos values quality time with his family and enjoys leisure activities such as exploring new destinations and languages, reading about world history, and playing baseball.