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Monday 8am - 6pm Tuesday 8am - 6pm Wednesday 8am - 6pm Thursday 8am - 6pm Friday 8am - 6pm

603 Solar

Name: 603 Solar
Address: 24 Charter Street, Exeter, NH, 03833, US
Telephone: +16035702607
Price range: $$

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PV Solar Company based out of Exeter, NH.

Voted #1 by Best of the Seacoast and Best of the 603 in 2023 + 2024 + 2025🥇☀️♻️
Claim your free site evaluation 👉https://603solar.com/free-solar-evaluation/

10/14/2026

☀️ Project Spotlight: Concord, NH! 🏡

Who says solar has to go on the house? For this Concord project, our team installed a 7.92 kW solar system on a detached garage, turning another roof into an opportunity to harness the power of the sun! ⚡

At 603 Solar, we believe every property has its own potential, and we love helping homeowners find the right solar solution for their space and energy goals.

From roof-mounted arrays to ground-mounted systems, we bring the same attention to detail and commitment to customer service to every project.

📍 Concord, NH
☀️ 7.92 kW solar installation
🔋 Locally owned. Customer focused. Solar powered.

Thinking about solar for your home or property? Let's talk about what’s possible!

📩 Reach out to 603 Solar to get started.

10/13/2026

⭐ Five Stars for 603 Solar! ☀️

Choosing solar is a big investment, and we believe the experience should be just as good as the results. From answering questions before a project begins to helping with adjustments months after installation, we're here to make sure our customers feel confident every step of the way.

A big thank-you to Sean for sharing such a thoughtful review! Further more, thanks for your shout out to Jeff (one of our awesome Solar Advisors!), who makes sure everything was/is done right for each of his customers! We're thrilled to hear your system is producing power and that you've had such a positive experience with our team.

At 603 Solar, the job isn't finished when the panels are installed — we're here for the long haul! 💛

10/06/2026

☀️ Transformation Tuesday! ☀️

This week, we're featuring a home in Chatham, NH that made the switch to clean, renewable energy with a 6.6 kW solar array installed by the 603 Solar team.

What started as an unused section of roof is now a power-producing asset, helping the homeowner generate their own electricity, reduce dependence on utility rates, and invest in long-term energy savings.

Every solar project is unique, and this installation is a great example of how even a modest-sized system can make a meaningful impact. Our team handled everything from design and permitting to installation and system activation, making the process simple from start to finish.

Thinking about transforming your home with solar? We'd be happy to show you what's possible.

📍 Chatham, NH
⚡ 6.6 kW Solar Array
🏠 Designed and installed by 603 Solar

09/30/2026

Hump Day! Half-way to the weekend! Here's a joke to keep you energized (😉) for the remainder of the week:

☀️ What’s a solar panel’s favorite fall activity? Leaf-ing the electric bill behind. 🍂

Now for this week's featured project!

This 8.8 kW rooftop solar array in Tilton, NH is helping another homeowner take advantage of the sun's energy while reducing their reliance on utility power. Designed specifically for the home's energy needs, this system will now provide clean, renewable electricity.

Every home is different, which is why our team takes the time to design systems that maximize production and deliver long-term value. From the initial consultation to installation and ongoing support, we're proud to help homeowners across New Hampshire make the switch to solar with confidence.

Thinking about going solar? We'd be happy to show you what solar could look like for your home.

☀️ 603 Solar – Serving NH, ME & MA
🔋 Residential & Commercial Solar
🔋 Battery Backup Systems
🔋 EV Chargers

09/28/2026

☔ The forecast said 100% chance of Monday 🙄

This 7.92 kW rooftop solar array in Keene, NH is ready to make the most of every sunny day ahead. While New England weather likes to keep us guessing, installing solar is one way homeowners can take more control of their energy future.

Our team recently completed this project, and we're excited to help another New Hampshire homeowner start producing their own clean, renewable energy right from their rooftop.

Thinking about going solar? 603 Solar proudly serves homeowners and businesses throughout New Hampshire, Maine, and Massachusetts with residential, commercial, battery storage, EV charging, and solar service solutions.

09/24/2026

⭐⭐⭐⭐⭐ Another 5-Star Review! ⭐⭐⭐⭐⭐

Nothing means more to us than hearing directly from our customers. Thank you, Douglas, for taking the time to share your experience and for trusting 603 Solar with your solar project.

From the initial consultation and system design to installation and beyond, our goal is to make the transition to solar straightforward, educational, and stress-free. We're grateful for the opportunity to help another homeowner start producing their own clean energy.

Thank you for the kind words and welcome to the 603 Solar family! ☀️

09/21/2026

☀️ Monday Joke: I asked my solar panels if they were ready for Monday. They said, “Watt choice do we have?” 😎

While the rest of us are reaching for an extra cup of coffee, this 17.16 kW solar array in Stratham, NH is already hard at work. Installed on a detached garage, this system transforms otherwise unused roof space into a reliable source of clean energy for the homeowner.

Projects like this show that solar isn’t limited to the roof of your home. Detached garages, barns, and outbuildings can be excellent locations for solar panels, helping homeowners maximize energy production while making the most of their available space.

Great-looking installation, great use of space, and years of solar savings ahead. Congratulations to our Stratham customer on going solar! ☀️🔋

09/17/2026

💡 What if your roof could help pay the electric bill?

That's exactly what this homeowner in Weare, NH set out to accomplish with a new 17.16 kW solar energy system installed by 603 Solar. Now, New Hampshire's sunshine helps offset utility costs while generating clean, renewable energy right at home.

We love seeing homeowners take control of their energy future and turn unused roof space into a long-term asset!

Thinking about what your roof could do for you? We'd be happy to help you explore the possibilities.

☀️ 17.16 kW Solar Installation
📍 Weare, NH

09/15/2026

⭐⭐⭐⭐⭐ Another 5-Star Review! ⭐⭐⭐⭐⭐

Hearing from customers who take the time to share their experience means a lot to our team. We’re proud to provide clear communication, quality workmanship, and a smooth process from the first conversation through installation and beyond.

Thank you to this customer for trusting 603 Solar, and for your kind words about our team. We appreciate the opportunity to help homeowners make the switch to solar and look forward to supporting you for years to come!

☀️ Thinking about going solar? Contact 603 Solar to learn how we can help power your home with clean, renewable energy.

09/14/2026

☀️ Mondays are a little easier when your roof is already hard at work before your first cup of coffee.

This newly completed 12.76 kW solar array in Gilford, NH is ready to turn sunshine into savings and help power the home with clean, renewable energy for years to come.

What makes each installation unique isn't just the size of the system—it's designing a solution that fits the property, the homeowner's energy needs, and their long-term goals. This Gilford project is now set up to produce clean energy while helping offset utility costs along the way.

A big thank you to our customers for trusting the 603 Solar team with their project from design through installation. We love seeing another system come online and another homeowner start producing their own power.

📍 Gilford, NH
⚡ 12.76 kW Solar Installation

Thinking about solar for your home or business? We'd be happy to show you what's possible.

Address

24 Charter Street
Exeter, NH
03833

Opening Hours

Monday	8am - 6pm
Tuesday	8am - 6pm
Wednesday	8am - 6pm
Thursday	8am - 6pm
Friday	8am - 6pm

Telephone

+16035702607

Website

http://www.603solar.com/

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