Be Ready for Storm Season
with a Battery Storage System
Home battery backup systems give you control over your power when the grid fails. They store energy so you can keep your home running through storms, blackouts, and high-demand days without relying on a generator. As an award-winning New Hampshire company, Granite State Solar helps homeowners achieve energy independence with expert design, seamless installation, and reliable local support.
Why Now Is A Smart Time for a Battery Storage System
Protect your home, your comfort, and your energy independence with reliable battery storage built for New Hampshire homes.
Reliable Backup Power
Battery storage systems keep essential appliances and lights on when the grid goes down. Enjoy quiet, seamless power that keeps your home comfortable during any outage.
Lower Energy Costs
Store excess energy for later use and reduce reliance on the grid. A home battery setup helps lower monthly utility bills and make the most of the power your home produces.
Expert Installation
Granite State Solar installs Tesla and Enphase battery systems with precision and care, managing every step from system design to expert, local installation.
Seamless Solar Integration
Battery storage systemsautomatically manage your home energy use, storing and supplying power efficiently so you always have backup when you need it most.
Who WE ARE
New Hampshire’s Trusted Battery Storage Experts
Granite State Solar helps homeowners across New Hampshire stay powered and prepared with advanced battery backup systems. Our local team designs and installs reliable energy solutions that keep your home running when the grid goes down and help you make the most of your stored power.
- Free site assessments and custom system recommendations
- Certified Tesla and Enphase battery storage installers
- Seamless integration with new or existing energy systems
- Local team with 17+ years of experience in home energy solutions
- Award-winning New Hampshire company focused on service, not sales
Get In Touch
Get Battery Backup Quote
Fill out a quick form or give us a call to connect with a local energy expert. We’ll answer your questions, design a custom battery storage system for your home, and provide a clear, no-pressure quote. Our team will help you stay powered during outages and use energy more efficiently.
*Your privacy is very important to us. We will never share your contact information.
Our IMPACT
Why Granite State Solar?
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5-Star Reviews
100
Installations
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Dollars Saved*
Anica naprta
2 years ago
Very professional team.
Brandon Bergeron
2 years ago
Chris Wellens
2 years ago
After meeting with multiple solar companies, we chose Granite State Solar to install our 20 panel ground mount system and are still happy with that decision! From the start, they provided personalized and professional service. They were thorough and valued our time keeping the process streamlined and easy for us. The install process itself was only about 6 hours from start to finish even with trenching and all the electrical work. We’ve had our solar panels for about 6 months now and haven’t paid an electric bill since. We could be happier with our experience and recommend GSS for anyone looking to solar.
Kent Baughn
2 years ago
Excellent service from start to finish!! Granite State Solar (GSS) installed a second solar array for me and recently added a Tesla Power Wall.
I did my research and made the decision to use GSS based on past work performance and the value they added to my homes.
From scoping out the job to installation, I could not have been happier with the quality of work I received and the communication each step of the way. I recommend GSS to help you explore adding Solar to your home!!
I did my research and made the decision to use GSS based on past work performance and the value they added to my homes.
From scoping out the job to installation, I could not have been happier with the quality of work I received and the communication each step of the way. I recommend GSS to help you explore adding Solar to your home!!
Ray Halpin
2 years ago
The system has been up and running for a year, providing more stability for our home. GSS has answered all questions and has provided great support all along. Tim, Ashlee, Raenor and Ben have been excellent!
Jamie Richardson
2 years ago
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!
Mark Schuttauf
2 years ago
Granite State Solar worked out great for us. Super work crews got everything done quickly and efficiently. Just got first electric bill after 2 weeks live with system. Bill dropped $60. Anticipate no bill for this month. The salesman, Andrew, even came out and showed me all the nuances of the Tesla app. The lady who mans the phones at the office is really nice and always gets back to you.
Would recommend Granite State Solar to anyone looking for a complete system.
Would recommend Granite State Solar to anyone looking for a complete system.
Jim OD
2 years ago
A difficult project, wetland and zoning considerations, but Granite State worked with me, answering questions and providing suggestions along the way. Very accommodating on my unavoidable delays, rescheduling the project timeline for me multiple times. I am sure the delays were a headache for the project management and installation team -- who were great -- and working quickly with minimum disruption to the property. Great experience, highly recommend Granite State!
Jon Blackburn
3 years ago
We would highly recommend Granite State Solar. First of all, their bid was extremely competitive. But what sold us on Granite State Solar was their service and the time that they spent answering our questions and helping us plan the entire project. They were terrific! They did what they said that they would do every step of the way. Once we get the metal portion of our roof resolved, we will be bringing Granite State back to our house to add more capacity. Go solar!!!
Our Process
Our Step-by-Step Process Gets Your Battery Storage System Installed Fast
1
Contact Us
Fill out a quick form or give us a call to let us know you’re interested. A local expert will reach out to answer questions, explain the next steps, and schedule your free site visit.
2
Site Visit
One of our advisors will visit your home to review your electrical setup and energy goals. We’ll help you choose the right batteries and the ideal installation location.
4
Permitting & Prep
We’ll handle all permits, utility coordination, and scheduling. Our team manages every detail to get your system ready for a smooth installation.
5
Installation
Our in-house crew will install and test your new battery storage system. Once complete, you’ll have reliable, automatic backup power ready when you need it most.
Products
Trusted Battery Storage Systems for Every New Hampshire Home
Granite State Solar installs reliable, high-performance storage systems designed for efficiency and long-term durability. As a certified installer for Tesla and Enphase, we provide professional installation and seamless integration with your home’s power system.
Enphase 10C Battery
The IQ Battery 10C offers 10 kWh of independent backup electricity to keep your home and appliances powered during grid outages. 7.08 kVA continuous output delivers whole-home or partial-home backup with ease.
Franklin Whole Home Battery
The Franklin Home Power system offers a scalable and versatile energy storage solution, with capacities ranging from 13.6 kWh to 204 kWh. Designed for efficiency and reliability, it features 89% efficiency, seamless power transfer within 16 ms, a 12-year warranty, and quiet operation under 30 dB.
Tesla Powerwall 3
Tesla Powerwall is a fully-integrated AC battery system for residential or light commercial use. Its rechargeable lithium-ion battery pack provides energy storage for solar self-consumption, time-based control, and backup.
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.
