New Hampshire’s Award Winning Solar Company

From free site assessments to seamless installation, we make going solar simple. Our team is based right here in New Hampshire and will guide you every step of the way – no pushy salespeople, just real support.

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Welcome

Power Your Future with New Hampshire’s Trusted Solar Partner

Granite State Solar is an award-winning solar and backup power installer, serving the Granite State since 2008. GSS delivers clean energy solutions for homes and businesses, specializing in solar installations and battery backup systems. From site assessment to design, permitting, and installation, we simplify every step of your renewable energy journey. Focused on improving energy efficiency and lowering costs, we provide outstanding customer service with a no-pressure, educational approach. Granite State Solar offers a dedicated, in-house team, for ongoing maintenance, service and support to ensure your system’s long-term success. Based in Bow, NH, we are your long-standing, local partner for renewable energy. Reach out to us today to get started!
Happy Clients

What Our Customers Are Saying

Our team at Granite State Solar look forward to working with you on your upcoming home energy improvement project and delivering our 5-star customer experience!
Granite State Solar place picture
Granite State Solar
4.9
Based on 188 reviews
review us on

“We had a great experience with Granite State Solar when they installed our system in 2024. Andy, who led the team that designed the system, did a great job communicating and answering questions, and was very accommodating in figuring out a way to tailor the system’s design to our needs and preferences. The installation itself happened ahead of schedule and was quick and efficient. We had a few technical glitches with the equipment but the team was responsive and got them taken care of within 24 hours. Our system has been working great and I have recommended that friends and family reach out to Granite State Solar when they’ve expressed interest in rooftop solar on their homes. It’s a pleasure to do business with such a great local company!

– Jamie Richardson | Auburn, NH

The Auburns enjoying their new solar array! (and dog peeking out the window!)
What we do

Our Promise to You

Commitment to Quality

We deliver premium solar installations tailored for New Hampshire, backed by a 12-year workmanship guarantee and high-quality solar panels. Our commitment to excellence ensures long-term value and customer satisfaction.

Reliable Solar Installation

We install durable, high-quality solar products backed by 25-year warranties on panels and inverters, plus a 12-year workmanship guarantee. Enjoy reliable performance and peace of mind with every installation. We also offer a dedicated, in-house, service team, who will be there for you post-installation.

Trusted Financing Partners

We’ve partnered with EastRise Credit Union to make solar energy more affordable. Enjoy zero-down, low fixed-rate loans up to 15 years, with no early repayment penalties. Replace your electric bill with manageable monthly payments and start saving right away. Contact us to learn about solar incentives!
OUR EXPERTISE

Meet Our Team

Having served the Granite State for over 17 years, Granite State Solar is a trusted partner for renewable energy solutions. Our expert team ensures a seamless experience, from consultation to installation, earning over 180 5-star reviews for professionalism and quality. Your satisfaction is our priority!
Our IMPACT

Why Granite State Solar?

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5-Star Reviews
100
Installations
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Dollars Saved*

*Based on average solar savings in NH

Proven Success

Awards & Recognition

We are proud to be one of the best NH solar companies, voted the Best of Business for solar for nearly 10 years, and voted Best of the 603 every year the competition has run, from 2021 through to 2024.
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Looking for reliable energy solutions? Fill out our contact form, and our team will help you explore personalized options to meet your energy goals!
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