To FA Energy Team Member Marc Guerrero, a sustainable building should be the standard rather than an exception. For our October Staff Spotlight, we sat down with Marc to talk about how FA Energy approaches projects, why he enjoys analyzing historic construction methods to solve modern performance issues, and his inspirations to become a designer. Keep reading his Q&A below!
Q: What is your role on the FA Energy Team and how do you all work together?
My role within FA Energy is to support the firm’s decarbonization projects, working directly alongside Megan Brown (FA Energy Project Manager) and Rebecca Berry (Director of Sustainability). As a team, we identify inefficiencies in the overall energy performance of our projects and collaborate to develop effective solutions. Our work focuses on improving building energy efficiency, reducing reliance on fossil fuels, and enhancing the health and well-being of all occupants.
Q: Why are you interested in sustainable building?
My interest in sustainable building comes from the belief that, regardless of a project’s size or scope, applying sustainable principles contributes to creating a healthier built environment. By integrating these principles into our everyday design and construction practices, we can help establish sustainability as an industry standard rather than an exception. Every step we take as designers and builders toward a more sustainable future helps drive continued innovation and creates opportunities for more sustainable applications in future projects.
Q: What is your favorite part about working on decarbonization projects at the firm?

My favorite part of working on decarbonization projects at the firm is analyzing a building’s overall performance from a broader perspective and identifying opportunities to improve upon what already exists. I enjoy researching historic construction methods, understanding how the industry has evolved over time, and applying modern strategies and practices to improve a building’s overall performance. This process allows me to connect lessons from the past with innovative solutions that help existing buildings perform more efficiently and sustainably.


Q: Do you have a favorite building or perhaps a favorite architect?
The architect who has influenced me the most over the years is Renzo Piano. During my freshman year at MassArt, I came across his Logbook in the school’s library, which contains sketches and handwritten notes documenting his thought process throughout his work. What inspired me most was his ability to transform the technical components of building assemblies into individual works of art. His work demonstrates a unique appreciation for how buildings are constructed, highlighting the relationship between technical detailing, craftsmanship, and architectural design.

Q: What inspired you to become an architect/designer?
My earliest inspirational memories growing up were of my mother taking me to work with her at a fashion design firm. I remember walking through the factory floor and spending hours watching her draft and stitch patterns together from scratch. Seeing how she transformed an idea into a tangible product sparked my early appreciation for the creative process and the technical skill required to bring a design to life. Looking back, I recognize how those experiences helped shape my interest in architecture, where creativity, craftsmanship, and technical problem solving come together to create something meaningful.