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FORBES #1 Best Solar Company in Boston

Commercial solar that pays down your P&L.

Nexis designs, builds, and services commercial solar and storage for Massachusetts businesses — from 33 kW rooftops to larger ground mounts. We model your ROI around commercial SMART, net metering, and the federal 48E ITC (with domestic-content bonus strategy), then handle interconnection and O&M end to end.

SMART-for-business modeling 48E ITC + domestic content Interconnection managed
Rooftop solar array covering a commercial building, aerial view
Forbes #1Boston, 2024 & 2025
5.0★ · 139+Verified reviews
LicensedHIC #209646 · CSL CS-106943
$0 downFlexible financing
Premium brandsTier-1 equipment only

Why commercial solar with Nexis

Lower operating costs, a stronger balance sheet

For most Massachusetts businesses, electricity is a large, rising, and completely controllable cost. Commercial solar converts that operating expense into an owned asset that produces predictable power for decades — while commercial SMART and net metering credits stack on top of the bill savings.

Because Nexis is licensed across five trades, we handle roof, structural, and electrical work in-house, so your project stays on one timeline and one point of accountability — from feasibility and interconnection through commissioning and long-term O&M.

What a Nexis commercial project includes

  • A real ROI model — built around commercial SMART, net metering, 48E ITC, depreciation, and your actual load profile, not a generic estimate.
  • The 60% market-credit rule handled — for systems over 25 kW AC we model the reduced net-metering credit correctly, a nuance many installers get wrong.
  • Interconnection managed — National Grid, Eversource, or Unitil applications, studies, and utility coordination handled by us.
  • Domestic-content strategy — equipment and documentation positioned for the 48E domestic-content bonus where it pencils.
  • Storage & peak-demand reduction — battery options to shave demand charges and add resilience.
  • O&M & monitoring — production monitoring, warranty management, and service for the life of the system.

Commercial-grade equipment we install

How a commercial project runs

1

Feasibility

We review bills, load, and roof/site, then model SMART, net metering & 48E ROI.

2

Engineering

Structural, electrical, and PV design plus the interconnection application.

3

Build

Licensed in-house crews install; we coordinate utility & inspections.

4

Operate

Commissioning, monitoring, and ongoing O&M so production stays optimal.

Commercial incentives still stack in 2026

Commercial SMART (20-year term with adders), net metering, and the federal 48E ITC with domestic-content bonus remain available for business systems as of 2026. We build these into a clear payback model. (Figures verified per project.)

For full program details, visit the official Massachusetts SMART 3.0 website.

Request a commercial ROI analysis

For business

Flexible commercial financing

From $0-upfront PPAs to ownership financing — we model each against your ROI. New: Commercial PPAs and Commercial Financing now available.

Commercial PPA

$0 upfront. You buy the power your rooftop produces at a rate below the utility; we own, insure, and maintain the system.

Get PPA pricing →

Commercial financing

Own the system with financing structured around the 48E ITC, depreciation, and your cash flow — for the strongest long-term ROI.

Request financing terms →

Cash purchase

Fastest payback and full incentive capture. We model it against PPA and financing side by side.

See the numbers →

Get a free commercial ROI + interconnection analysis

Send us a recent bill and your address — we'll model system size, SMART + net-metering value, 48E ITC, and payback, plus map the interconnection path. No cost, no obligation.

Commercial solar FAQ

Answers for business owners

We build the model on your actual load and bills — including the 60% market-credit rule on systems over 25 kW AC that many installers ignore — not an inflated projection. We manage interconnection so it does not stall, and one accountable team handles design through O&M.

In Massachusetts, net-metered systems over 25 kW AC receive net-metering credits at roughly 60% of the retail rate (the "market net metering credit"), rather than full retail. It materially changes ROI on larger systems, so we model it explicitly — many installers overstate savings by ignoring it. Verified per project at your analysis.

Yes. The commercial 48E investment tax credit continues in 2026, including a domestic-content bonus and begin-construction safe-harbor rules under OBBBA. We position equipment and documentation to capture it where it pencils.

Yes — we manage the full interconnection process, including the application, any impact/facilities studies, and utility coordination through approval to operate.

Yes. For many commercial accounts, storage paired with solar shaves peak-demand charges and adds resilience. We model the demand-charge savings alongside SMART and net metering.

Yes. We provide production monitoring, warranty management, and scheduled/vendor-neutral O&M so your system keeps performing over its 25-plus-year life.

Ready when you are

Book my free assessment

Same-week appointments across eastern MA. We bring the rebate math, you get a lower bill and a more comfortable home — $0 down to start.

Forbes #1 · 2024 & 2025
5.0★ · 139+ reviews
HIC #209646 · CSL CS-106943
Mass Save HPIN installer
Call Text Book free
FranklinWH home battery backup
FORBES #1 · BOSTON

Rebates change by block.

Before you go

Lock your spot before rates shift

Prices and Mass Save rebates change by block — and the top tiers fill up. Book a free assessment now and we'll tell you exactly what your address qualifies for in 2026.

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No cost, no obligation. We handle all rebate paperwork.