
Rooftop solar
Custom systems designed in Aurora around your roof, shade and utility rate. Tier 1 panels, installed by our own crews.
Home solar →NOI Solar designs, installs and services home solar, batteries and EV charging across New England, with our own crews and no subcontractors. It starts with a free written review: send one electric bill and we tell you, in writing, what your roof can save.

Solar, batteries, roofing, EV charging and service. One company, one contract, and the same people from the site visit to year ten.

Custom systems designed in Aurora around your roof, shade and utility rate. Tier 1 panels, installed by our own crews.
Home solar →
Backup for outages and, in Connecticut, an upfront incentive plus yearly payments. FranklinWH, Tesla and Enphase.
Battery storage →
Add a battery to solar you already have, from any installer, any age. Most installers refuse this work.
Battery retrofit →
Roof near the end of its life? We re-roof and install solar on one timeline, with one crew and one contract.
Solar + roofing →
Level 2 charging at home, wired to the same panel as your solar. Usually installed in one day.
EV charging →
Production drops, inverter faults, monitoring outages and upgrades, on any system, whoever installed it.
Service and repair →
The 30% federal credit for homeowner-owned systems ended with 2025. Plenty of solar websites still show it. We leave it out of your numbers and work with what is real:
A few of the last 12 months of jobs. Locations, system specs and dates are real.

8.4 kW + FranklinWH battery

64 kW rooftop

9.6 kW + re-roof

Tesla Powerwall 3
47 days on average from signed contract to a working system.
Email or upload your electric bill and your address. That is all we need to start.
Within 2 business days: a proposed system, a price, expected savings and the incentives that apply.
A site visit, an Aurora design with every brand named, then permits and the utility application filed for you.
Our crew installs most systems in one day, the town inspects, and the utility gives permission to operate.
Four of the reviews our crews have earned.
“Teamsun was the only crew that walked the roof, named the panel brand, and answered every question without checking with someone. Same lead tech came back a year later when I added a battery.”
“Three of my neighbors had Teamsun, so I called them. The crew was on my street five days after I signed.”
“They knew the historic district secretary by first name. Saved us six weeks on permitting alone.”
“Same lead tech who installed it came back four years later to swap an inverter under warranty. No charge, no excuses.”
Reviews from customers of Teamsun, which is the same company as NOI Solar (Green Enterprises, LLC) and the same install crews.
Most national installers hand your roof to a subcontractor. We never do.
| National installer | NOI Solar | |
|---|---|---|
| Crew lives in your state | Rarely | Always |
| Knows your town's permitting office | No | Yes |
| New England installs done | 0 to 1,000 | 9,000+ |
| Service calls answered locally | Routed | Direct |
| Subcontractors on your roof | Usually | Never |
| Tier 1 equipment guaranteed | Sometimes | Every install |
| Counts the expired 30% federal credit | Often | Never |
Two ways to pay, and in both you own the system and every incentive that comes with it.
The highest lifetime savings. No interest, no lender, nothing owed after installation.
We introduce you to our financing partners and help you compare their terms, or you can use your own lender. Your review shows cash and financed numbers side by side. No credit check to get a quote.
Straight answers. More on the FAQ page.
Not for a system you own that is installed in 2026. The federal residential clean energy credit (Section 25D) ended for systems installed after December 31, 2025. We do not count it in your numbers. State and utility programs still apply, and in Connecticut they are significant. See incentives.
A typical 8 to 12 kW home system runs $25,000 to $40,000 before incentives. Your roof, shade, equipment and usage move that number, so your written review gives you a price for your home before anyone asks you to sign.
47 days on average. About 7 to 10 days for the site visit and design, 20 to 30 days for permits and the utility application, one day on the roof for most systems, and 5 to 15 days for the utility's permission to operate.
No. Every install is done by our own crews, employees on our payroll. The crew lead who walks your roof at the site visit is the crew lead who installs your system.
All six New England states: Connecticut, Massachusetts, Rhode Island, New Hampshire, Maine and Vermont. License numbers are on every quote and contract.
Pay cash, or we help you finance it through our financing partners or a lender you choose. Either way you own the system. We do not offer leases or power purchase agreements. Getting a quote never needs a credit check. See financing.
Send us one electric bill. You get a written review of your home: what solar and a battery would cost, what they would save, and which incentives apply. Free, and free when the answer is no.