ABOUT US
Our mission is to deliver the best designs at the lowest construction cost for your solar PV, energy storage, microgrid, and EV charger projects.
Tom and Darlene McCalmont founded McCalmont Engineering in 2009, ignited by a shared passion for a clean-energy future. They set out to power the industry forward by blending cutting-edge solar innovation with hands-on, real-world constructability. Their collaborative synergy established the high standards of accuracy, meticulous detail, and responsiveness that continue to energize our client relationships today. Following Darlene’s retirement as CEO in 2026, Tom stepped into the role to lead the company’s next chapter.
The sustainable principles they co-created remain the bedrock of our culture and our commitment to brilliant design and customer service.
Tom McCalmont
CEO & Co-founder
Tom McCalmont
CEO & Cofounder
Tom McCalmont is CEO and cofounder of McCalmont Engineering and Paired Power. He has over 25 years of solar, storage, and EV charging experience. Prior to that, Tom was CEO and cofounder of Regrid Power, one of California’s earliest and most successful solar installation companies.
Tom has a demonstrated track record of creatively applying new technology to solving real world customer problems. He earned his MS degree in electrical engineering from Stanford University and both Sc.D. and BS degrees from Muskingum University. Tom holds 18 U.S. patents and is a licensed Professional Engineer, a charter NABCEP-certified Solar PV Installer, and an EVITP-certified licensed electrical/solar contractor in California.
The McCalmont Difference
Excellence in Renewable Engineering
Renewable Energy
Expertise
At McCalmont Engineering, our expertise stands apart. Renewables is everything we do, unlike engineering firms who design traditional power plants. Our teams are 100% dedicated to clean energy designs.
Construction
Experience
Our employees have years of field experience installing solar power plants, and that hands-on experience translates into designs that lower construction costs. We understand that controlling costs is one of the most important factors to you in getting your projects built.
Exceptional
Track Record
We are experienced with every step of the design process from interconnections through permitting, construction, and commissioning. We manage large numbers of complex projects simultaneously through outstanding project management.
Our staff has over 80 years’ combined experience in the solar industry, and that experience translates into thoughtful and buildable designs.
McCalmont Engineering History
Darlene and Tom McCalmont founded McCalmont Engineering in 2009 with the objective of capitalizing on their years of solar experience to create the nation’s leading solar design and engineering company. Ever since, McCalmont has been providing knowledgeable and experienced clean energy design and engineering services for large scale projects (commercial, industrial, and utility scale). McCalmont delivers complete renewable energy project designs including solar power plants, microgrids, energy storage systems, and electric vehicle charger infrastructure. McCalmont Engineering is licensed in over 40 U.S. states.
