Commercial Solar Construction in Massachusetts, Rhode Island, New Hampshire & New York
CommercialSolarGuy is a licensed, bonded, and insured solar construction company and general contractor specializing in commercial solar energy and energy storage projects across the Northeast.
Our team designs and builds rooftop, ground-mount, carport, and agrivoltaic solar installations for businesses, schools, farms, municipalities, and non-profits. Every project is led by our in-house team of licensed Construction Supervisors, Master Electricians, and Project Managers.
Founded by John Fitzgerald Weaver — developer of a single 75-megawatt commercial solar portfolio along with hundreds of additional megawatts of projects— Commercial Solar Guy brings decades of combined engineering, construction, and project management experience to every job. We handle every phase from initial site visit through Permission to Operate (PTO) and long-term operations and maintenance, typically delivering projects in 7 to 12 months.
Ready to discuss your project? Call (508) 499-9786 for a free 15-minute consultation.
What we build
CommercialSolarGuy builds every major type of commercial solar installation across the Northeast:
- Rooftop solar — Ballasted and attached systems on flat and pitched commercial roofs. Featured projects include a rooftop installation at Harvard University and multi-building rooftop systems in Boston and Rhode Island.
- Ground-mount solar — Pile-driven and ballasted ground arrays on open land, from small installations to multi-megawatt solar farms. Featured project: ground-mounted solar farm in Rhode Island.
- Solar carports — Engineered canopy structures over parking lots that generate power while providing shaded parking, with optional EV charging integration.
- Agrivoltaic solar — Dual-use installations combining active farming with solar generation, qualifying for the Massachusetts SMART dual-use adder.
- Solar-plus-storage — Hybrid systems pairing solar with battery energy storage to manage demand charges, maximize interconnection capacity, and provide resilience.
Our team has installed dozens of megawatts of commercial solar across rooftops, parking lots, and land in New England
Pre-construction and development services
Before we break ground, CommercialSolarGuy delivers the full suite of design, engineering, financial, and permitting services that make a commercial solar project succeed. These services are included in every construction project we build, and are also available as standalone engagements for clients developing projects with other builders.
Feasibility studies
We combine that with research into local zoning and utility interconnection queues to ensure your project can move ahead as planned.
Financial Analysis
We model ROI, incentives, depreciation, and cash flow projections to ensure the project meets your financial goals.
Lease / installation agreement review
Solar Due Diligence
Owner’s representative / Owner's engineer
As your Owner’s Rep, we coordinate the engineers, installers, and utilities, ensuring the project is built to your standards and with your goals in mind.
Pre-construction engineering and design
Engineering reports
Solar construction and oversight
Complete project management
What makes commercial solar unique?
Getting a commercial solar installation is not as simple as putting some panels on the roof and turning them on—it’s a significant financial investment designed to provide long-term value to your business. In order to do that, every project requires guidance from knowledgeable experts.
Here are some key factors that set commercial solar projects apart:
- Diverse Goals: Businesses and landowners use solar to achieve multiple goals, including energy savings, meeting organizational sustainability (ESG) targets, and hedging against demand charges and future changes in energy price stability.
- Complex finances: The proper financial structure is essential to a good commercial solar project. Each project involves a mix of federal and state incentives, accelerated depreciation schedules (MACRS), specialized financing options, and the potential for creating new revenue streams from selling energy credits. The ideal outcome is working with these factors to create a calculated, long-term ROI for your business.
- Precise engineering requirements: Whether you’re looking for a solar installation on a commercial rooftop or a ground-mounted system on land you own, the process of engineering the system is complex, requiring detailed site surveys and structural analysis, careful calculations, and expert knowledge of building and land-use codes.
Why choose a licensed solar construction company?
CommercialSolarGuy‘s founder John Weaver has developed over 200 megawatts of commercial solar over his career. Our team includes a licensed General Contractor, Construction Supervisor, a Project Manager, and Master Electricians – and has built dozens of megawatts of commercial solar across New England, including projects at Harvard University and the U.S. Air Force, multi-building rooftop systems in Boston, and ground-mounted solar farms in Rhode Island. We personally manage every project from feasibility through long-term operations and maintenance. When you’re ready to start your project, contact us or call (508) 4999-SUN
Commercial Solar Guy News:
Solar and Storage News Roundup with The Clean Power Hour
The following solar and storage news comes from "The Clean Power Hour": In this engaging bi-weekly news roundup, host Tim Montague welcomes back John Weaver, the "CommercialSolarGuy," to discuss major developments in the renewable energy sector. The episode highlights...
Solar O&M: Real Quotes, Cost Breakdown, and Practical Insights
Understanding Solar O&M Costs for a Large-Scale Project One of the first questions business owners ask before installing solar is, “What kind of maintenance will my system require?” In this feature, we share insights based on real solar maintenance cost quotes...
Rhode Island Net Metering is a Virtual Battery for Solar
Net metering is often described as a “virtual battery,” because instead of storing excess solar energy in a physical battery, your solar power system "charges" the grid and receives credits in return. These credits then offset your power costs when the sun isn’t...
Harvard Sustainability in Action: American Repertory Scene Shop Goes Solar
As a commercial solar installer, we build sustainable infrastructure for a wide range of industries—from boat manufacturers to mosques and municipal departments—each project offering unique lessons. But as a lifelong theater enthusiast, I was particularly excited to...
Is Your Commercial Roof Ready for Solar Panels?
Investing in a commercial solar panel installation is more than just a smart business decision; it’s a commitment to reducing energy costs, enhancing your property’s value, and supporting sustainability. But before we begin, one of the first questions to ask is, “Will...
Understanding Massachusetts Net Metering: How Solar Can Reduce Your Electric Bill
Imagine if your car’s odometer could spin backward whenever you coast downhill. That’s essentially what happens with your electric meter when you install solar panels and participate in Massachusetts' net metering system. While most of us are used to watching our...