Business Details
11 Years
experience
Trusted Solar Installations & Construction Services in Chelmsford
DeFreitas Enterprises offers comprehensive turnkey solar installations for residential and commercial clients. Established in 2015, we handle every aspect of solar projects, from initial design and permitting to construction and long-term system monitoring. Our team specializes in custom solutions, including ground-mount solar installations, backyard pergolas with solar integration, and off-grid energy systems combining battery storage and generators.We serve Massachusetts, New Hampshire, and Rhode Island, with expertise in navigating regional utility requirements and incentives. Our commitment to quality is reflected in over 1,000 kW of installed solar capacity across dozens of projects. We maintain partnerships with industry leaders like Generac and Enphase Energy to deliver reliable, future-ready energy solutions while prioritizing customer education and satisfaction.
Services
Solar Installations
Construction Services
Energy Storage
Off-Grid Systems
Generator Installations
Details
- Year established: 2015
Highlights and features
- We offer complete turnkey solar solutions from design to installation
- Our team has installed over 1,000 kW of solar capacity since 2015
- We use premium LG Solar panels and Enphase Energy microinverters
- We provide customized off-grid energy storage solutions with generators
- Our engineers handle all permitting and utility interconnection processes
Services
Solar Installations
We design and install complete solar energy systems for residential and commercial properties. Our services include site assessment, 3D system modeling, permitting, and grid interconnection. We work with premium components from LG Solar and Enphase Energy to maximize efficiency and aesthetics. Our turnkey approach ensures seamless implementation from initial consultation to final commissioning.
Construction Services
Our construction division specializes in solar-integrated structures and outdoor living spaces. We build pergolas with solar panel integration, ground-mount solar arrays, and deck installations. All projects combine functional design with renewable energy capabilities. Our team ensures structural integrity while optimizing solar exposure for maximum energy production.
Energy Storage
We implement advanced battery storage solutions using Generac and Enphase Energy technologies. Our systems enable partial or whole-home backup power during grid outages. We design storage configurations that work seamlessly with solar arrays and generators. Our expertise ensures reliable power availability while maintaining system efficiency and longevity.
Off-Grid Systems
We create fully self-sufficient energy systems combining solar, storage, and generator technologies. Our off-grid solutions are ideal for remote locations or customers seeking energy independence. We engineer complete systems tailored to specific energy consumption patterns. Our designs ensure reliable power supply through varying weather conditions and seasonal changes.
Generator Installations
We integrate standby generators with solar and battery systems for comprehensive energy solutions. Our installations work with both Generac and Enphase transfer switches to ensure seamless power transitions. We optimize generator sizing and fuel efficiency for each specific application. Our systems provide critical backup support during extended cloudy periods or high-demand situations.
People
Alexander DeFreitas
President & Chief Engineer
Mechanical Engineering graduate from UMass Lowell with over 8 years in solar industry. Founded DeFreitas Enterprises to bring renewable energy solutions to New England. Specializes in system design and engineering oversight.
David Shanahan
Sales Manager
Former home energy auditor with UMass Amherst degree. Transitioned to solar installation expertise after joining in 2019. Manages client acquisition and project implementation. Brings practical field experience to sales consultations.
Kyler Gallant
Head of Research
Chemical Engineering graduate from UMass Lowell. Leads product research and sustainability initiatives. Currently pursuing Masters in Engineering Management. Focuses on long-term technological viability and system efficiency improvements.
Questions
How long have you been in business?
We've operated as DeFreitas Enterprises since September 2015 in Massachusetts.
What areas do you serve?
We primarily serve Massachusetts, New Hampshire, and Rhode Island.
What solar panel brands do you offer?
We prefer LG Solar panels but offer multiple options to suit different budgets.
Do you provide energy storage solutions?
Yes, we work with Generac and Enphase Energy for battery storage systems.
What's included in your workmanship warranty?
Our 3-year warranty covers equipment replacement, system monitoring, and roofing work.
Can you install off-grid systems?
Yes, we design complete off-grid solutions combining solar, storage, and generators.
