Commercial Battery Storage
As a CT Green Bank ESS Program Certified Installer, Earthlight delivers turnkey commercial battery energy storage systems that reduce costs, improve resiliency, and keep your business running.
Tell us about your project and our team will put together a custom plan and free estimate for your home.
Licensed & Insured • Serving Connecticut, Massachusetts & Oregon
Commercial Battery Storage
As a CT Green Bank ESS Program Certified Installer, Earthlight delivers turnkey commercial battery energy storage systems that reduce costs, improve resiliency, and keep your business running.
Commercial Battery Energy Storage Systems for Energy Independence
Take control of how your business uses energy with professionally installed battery energy storage systems designed to reduce demand charges, improve resiliency, and keep critical operations running when the grid goes down.
Commercial battery storage gives businesses more control over how and when they use energy. By storing power for use during periods of high demand, battery systems can help reduce electricity costs, improve resiliency during outages, and support long-term energy planning. Whether your goal is energy independence, backup power for critical operations, or reduced exposure to the utility grid, Earthlight designs and delivers battery storage systems built around your facility's needs.
Reliable, Scalable Microgrid Energy Solutions
Earthlight delivers scalable, turnkey battery energy storage systems (BESS) for organizations of every size—from Small Business MicroGrid systems that provide uninterrupted backup power, to grid-integrated Commercial and Industrial systems that deliver energy security, cost savings, and storage at scale. Every project includes system design, communications and control, and professional installation, making battery storage a practical way to strengthen operations while making better use of the energy resources already on site.
Battery Incentives That Improve Your ROI
Federal tax credits (Section 48E) can cover up to 30% of your total project cost, with potential adders for domestic content and energy communities. State incentives are also available and vary by location—as a CT Green Bank ESS Program Certified Installer, Earthlight helps Connecticut businesses take full advantage of available programs. Our storage experts can help you navigate and model the incentives available to your organization.
Let's Build the Right Energy Solution for Your Business
Whether you're exploring battery storage for the first time or adding storage to an existing solar installation, Earthlight can help you find the right solution for your facility. Schedule a consultation with our team to evaluate your energy usage, model potential savings and incentives, and design a battery storage system that delivers dependable performance for years to come.
Related Services
Why Choose Earthlight for Commercial Battery Storage?
100% In-house crews
All design, installation, and service is done by Earthlight employees.
Local expertise
18+ years of installations across CT, MA, and OR with dedicated in-state teams.
Long-term support
We monitor, service, and maintain your system long after installation day.
Certified & credentialed
NABCEP certified, BBB accredited, licensed Master Electricians in all three states.
How the Commercial Battery Storage Process Works
1
Free consultation
We assess your property and goals at no cost.
2
Custom design
Our engineers design a system built specifically for you.
3
Permit & install
We handle all permitting and install with our own licensed crews.
4
Ongoing support
Monitoring, maintenance, and service for the life of your system.
Financing & Incentives for Commercial Battery Storage
We help you understand every available incentive, rebate, and financing option so you can make the best decision for your home or business.
PPA (Power Purchase Agreement)
Pay only for the electricity your system produces with no upfront installation costs or equipment ownership.
PPA (Power Purchase Agreement)
Pay only for the electricity your system produces with no upfront installation costs or equipment ownership.
PPA (Power Purchase Agreement)
Pay only for the electricity your system produces with no upfront installation costs or equipment ownership.
PPA (Power Purchase Agreement)
Pay only for the electricity your system produces with no upfront installation costs or equipment ownership.
What Our Customers Say
Real experiences from customers across CT, MA, and OR.
Frequently Asked Questions About Commercial Battery Storage
What is commercial battery storage?
Commercial battery storage systems store electricity for later use, allowing businesses to reduce demand charges, shift energy usage away from peak rate periods, and support daily operations. Systems can charge from the utility grid or from on-site solar, then discharge stored power when it's needed most—during high-rate periods or utility outages.
Can battery storage help lower electric bills?
Yes. Demand charges can make up a significant portion of a commercial electric bill. By discharging stored energy during peak periods, battery storage reduces expensive demand charges and shifts consumption away from high-rate hours, lowering overall energy costs.
Are there any incentives for commercial battery energy storage systems?
Yes. Federal tax credits can range from 30% up to 50% of project costs with applicable adders, and many utilities offer demand response programs that provide additional ongoing value. State incentives vary by location—Earthlight is a CT Green Bank ESS Program Certified Installer and can help you identify every incentive available to your organization.
What types of businesses are a good fit for battery storage?
Businesses with high energy usage, significant demand charges, or critical equipment needs benefit most from battery storage—including manufacturers, schools, municipalities, farms, and multifamily properties. If keeping operations running during an outage is a priority, battery storage is worth evaluating.
How long do commercial battery storage systems last?
Earthlight uses stable LiFePO4 (lithium iron phosphate) technology, which degrades more slowly than other forms of energy storage. These systems are built for long-term performance, with warranties that can extend as far as 20 years.
