Battery Backup
Learn How Batteries Works in Your Area
Massachusetts Battery Storage
Install a home battery in Massachusetts and earn incentives through programs like ConnectedSolutions while protecting your home during outages.
Rhode Island Battery Storage
Rhode Island homeowners can pair solar with battery backup to store energy, reduce grid reliance, and stay powered during storms.
Connecticut Battery Storage
Take advantage of Connecticut battery incentives and demand response programs while adding reliable backup power to your home.
Outage-Proofing Your Home Made Easy
Local Battery Experts
OneGrid's local battery specialists manage every step of your home energy storage project, from initial assessment to activation. We design and deploy reliable battery systems built for any grid conditions, state and federal incentives, and winter resilience.
Store Energy. Use It When It Matters.
Residential battery storage lets homeowners store energy for use during peak pricing, outages, or winter storms. A home battery increases energy independence, lowers electric costs, and keeps critical systems powered when the grid goes down.
Resilience for the Way You Live
A home battery provides backup power for heating systems, appliances, and essential loads during power outages. Designed for New England weather, battery storage delivers peace of mind, reliability, and long-term value year-round.
Brands You Can Trust

Enphase batteries offer modular, reliable energy storage with seamless solar integration. Designed for resilience, they provide dependable backup power and flexible scalability for your home.

Tesla Powerwall systems deliver high-capacity home battery storage with intelligent energy management. Popular across New England, they support backup power, grid participation, and whole-home resilience.

FranklinWH batteries are built for whole-home backup and high-power demands. With robust capacity and storm-ready performance, they’re well suited for New England winters and extended outages.
FAQ's
Battery Storage FAQs
We provide a range of lithium-based batteries with either an LFP battery chemistry or an NMC battery chemistry.
The storage capacity and other variables will determine the price. Our sales representatives will be pleased to offer an estimate that satisfies both your backup requirements and the needs of your house.
Indeed. Because battery storage systems are modular, you can always add more capacity. It's advisable to build a new solar panel array with batteries in mind if you anticipate adding them in the future.
Whether or whether they use batteries, the majority of solar energy systems are grid-connected. Through this connection, owners of solar panels can "sell" extra electricity generated by their systems back to the grid in exchange for credits on their subsequent energy bills. A grid-connected solar system without a battery will shut down in the event of a power outage.
The solution to this is complicated and contingent upon several variables. These variables include the quantity and charge of batteries at the time of the outage, the amount of energy the property is using during an outage, and more. The size of a battery or bank of batteries should be sufficient to power your house until the grid is restored. You might install a smart service panel solution, like a SPAN panel, to have better control over how much electricity you use during an outage.
Battery storage gives you energy independence, protection from power outages, and better control over your electricity usage. It also helps you maximize savings by using stored energy during peak utility rate hours.
Most modern solar batteries last between 10 to 15 years, depending on usage and environmental conditions. OneGrid installs premium-grade batteries with long warranties and reliable performance for years to come.
Yes! If you already have a solar system, OneGrid can retrofit a compatible battery storage solution. Our team evaluates your setup and recommends the best integration for optimal efficiency and savings.
It depends on your energy habits and system size. OneGrid’s specialists perform an energy assessment to help you choose the right battery size for your household needs and backup goals.
When the grid goes down, your solar battery automatically provides backup power to essential appliances. You’ll still have electricity for lights, refrigeration, and key home systems — keeping you powered and comfortable.
Take Back Control
Find out if installing battery storage from OneGrid could result in peace of mind and energy independence!
Reviews
What Our Clients Say Matters
Every OneGrid customer experience reflects the trust and quality behind our services. Their voices aren’t just validation, they’re a guiding force for our continued innovation in clean energy.
Posted on Lindi von MutiusTrustindex verifies that the original source of the review is Google. The OneGrid team was wonderful! They were all kind, professional, and super responsive to our questions. They gave us clear expectations and explanations throughout and left our house and yard in a neat state after they were done. We’re really excited about our new panels and appreciated the easy installation process!Posted on Lars NorengTrustindex verifies that the original source of the review is Google. The materials were delivered the night before. The crew showed up at the right time and started working right away. Seems like a very experienced team and hardly any conversations needed. They installed our panels on the main roof and on the side roof. Very efficient and they finished before time. Cables lined up as agreed. Battery in the middle of the wall and lined up as agreed. Cabling and electrical work was excellent as well. In our previous house we had solar as well; this crew from One-grid was significant better. Highly recommend them and a great experience.Posted on Russ RileyTrustindex verifies that the original source of the review is Google. Dexter sold me my panels before he started this venture and has been more responsive than anyone I do business with. Even after leaving the original installer of my system, he actually communicated better than they did when I had an electrical issue. Despite the fact he stood to gain nothing from me since the sale was completed years ago. Service means something, especially in the automated world we now live in. If anyone asks me about solar, I recommend him every time.Posted on Julie BaslerTrustindex verifies that the original source of the review is Google. The crew was amazing! They worked together so well and were very friendly. They were always on task and worked together so well. They kept the property clean and were respectful to me and the property. When they were done Matt showed me the app and answered any and every question I had. They made this a great experience!Posted on Jesus TrujilloTrustindex verifies that the original source of the review is Google. ⭐️⭐️⭐️⭐️⭐️ “OneGrid exceeded all my expectations. Their team was incredibly knowledgeable, transparent, and efficient from start to finish. They made the entire process smooth and stress-free, explaining every step and helping me choose the best solution for my home. The installation was fast, clean, and clearly handled by experts who take pride in their work. My system has been performing flawlessly, and my energy savings are even better than I hoped for. Exceptional service, professional team, and unbeatable results. Highly recommended!”Posted on Mark CarpentierTrustindex verifies that the original source of the review is Google. Roy and Matt and the whole crew were excellent. Worked efficiently and clean. They were very polite and helpful through the whole process. We are extremely satisfed. We would highly recommend them to anyone considering solar!Posted on Kris MasciarotteTrustindex verifies that the original source of the review is Google. The whole crew from start to finish was amazing. They answered all of my questions, were very professional, and cleaned up after themselves. I would highly recommend OneGrid.Posted on Mark ClarkeTrustindex verifies that the original source of the review is Google. Great job. Highly professional and well trained crew.Posted on Anderson CalazansTrustindex verifies that the original source of the review is Google. Very polite people. Made it very quick. ThanksPosted on aerolibTrustindex verifies that the original source of the review is Google. Workers were friendly, got the job done quickly with minimal disruption and cleaned up when left!