NORESCO Leadership Team: Alex Castro

Get to know our Senior Vice President, Commercial

Alex Castro

Senior Vice President, Commercial

Alex Castro has over 30 years of diverse clean energy experience and serves as Senior Vice President for NORESCO’s Commercial business line. Mr. Castro leads sales and project development efforts to help commercial customers achieve sustainability, efficiency, healthy building and broader ESG goals, as well as decarbonization and sustainability-focused local law compliance.   

Mr. Castro and his team leverage NORESCO’s decades of energy efficiency, infrastructure and sustainability consulting experience to assess each customer’s unique needs and develop customized “as-a-service” and other creative offerings and strategies that achieve customer goals. He is also responsible for developing key industry and utility partnerships that expand and optimize service delivery, value and results for commercial customers. 

Prior to joining NORESCO, Mr. Castro spent the last 15 years at Lime Energy, most recently as Executive Vice President of Sales and Operations for the commercial energy efficiency business. Prior to joining Lime, Mr. Castro built facilities services businesses serving national account customers as a co-founder of MethodIQ, and as a Vice President at Prenova.  He began his career in the utility space, where he developed commercial energy services and products for National Grid and Direct Energy.

Mr. Castro earned a BS in Mechanical Engineering from New York University’s Polytechnic School of Engineering.


NORESCO, a part of Carrier Global Corporation, helps clients adapt to and mitigate the impacts of climate change by decarbonizing, modernizing and electrifying aging infrastructure to be more sustainable and resilient. By deploying innovative distributed energy, storage and renewable energy solutions, NORESCO improves the health and efficiency of existing campuses, buildings and communities. To date, NORESCO has guaranteed more than $5 billion in energy and operating cost savings at more than 10,000 facilities while reducing customer CO2 emissions by more than 25 million metric tons – the equivalent to planting 1.4 million acres of forest. 

As the demand for modern energy infrastructure increases, the need for NORESCO’s services grows, too. Check out our careers.

NORESCO is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.