Our Vision
To empower individuals, families, and businesses with clean, reliable energy storage solutions that create a more resilient and sustainable world.
Our Mission
To deliver safe, high-performance solar battery systems that reduce energy costs, protect against power outages, and accelerate the transition to renewable energy—backed by industry-leading support and long-term reliability.
About Us
Reliable Solar Energy Storage for a Stronger Future.
From everyday home energy savings to large-scale commercial and industrial resilience, Fortress Power provides the advanced energy storage systems needed to build smarter, more reliable power infrastructure. Our solutions deliver clean energy, dependable backup, and long-term performance—empowering customers of every size to take control of their energy future.
500+
Installer Partners
100+
Distributor Partners
50,000+
Projects Worldwide
Why Choose a Solar Energy Storage System?
Lower Energy Costs With Solar + Storage
A modern energy storage system lets you store excess solar energy during the day and use it when utility rates are highest, dramatically reducing monthly electricity bills and boosting the value of your solar investment.
Sustainable, Clean Energy for Your Home or Business
Storing and using your own solar power reduces your reliance on fossil fuels, cuts carbon emissions, and accelerates your path toward a clean, renewable energy lifestyle.
Reliable Backup Power for Outages
A home battery backup system keeps your lights on, appliances running, and critical circuits powered during blackouts—providing seamless protection from storms, grid failures, and increasingly unstable utility infrastructure.
Energy Independence On or Off the Grid
Whether you’re looking for true off-grid capability or simply greater day-to-day control over your home’s power, an energy storage system gives you long-term energy resilience, freedom, and peace of mind.
Resources for Every Step of Your Energy Journey
Whether you’re installing a new Fortress Power system or exploring clean energy solutions for your home, our resource center gives you quick access to the tools, guides, and support you need.
Installers
Stay up to date with live and on-demand technical training sessions designed to help installers master Fortress Power systems.
Access detailed installation guides, data sheets, wiring diagrams, and technical documents for every Fortress Power product.
Need assistance? Submit a support ticket and our engineering team will help you diagnose, troubleshoot, or configure your system.
Read expert articles on system design, product updates, best practices, and industry trends to stay ahead in the solar + storage market.
System Owners
Explore preconfigured solutions that show exactly what different battery and inverter packages can power in your home.
Learn about our industry-leading warranty and extended coverage options—designed to protect your investment for decades.
Use our interactive tool to estimate your energy needs, size your system, and discover the right Fortress Power solution for your home.
Locate authorized Fortress Power installers and dealer partners near you for professional system design, purchase guidance, and expert installation.
Newest Residential Products
eBoost Scalable Energy Storage System
The eBoost is a 16kWh stackable LFP battery designed for seamless integration with the Fortress Power Envy Duo 21 inverter — delivering reliable, scalable backup and off-grid energy.
eForce Stackable Whole-Home Energy Storage System
Pairing powerful 9.6 kWh LFP batteries with the Envy Inverter, eForce delivers a flexible, stackable solution for backup power, off-grid living, and energy independence.
Solo 6.5K Non-Export Inverter
The Fortress Power Solo 6.5K is a powerful and flexible 6.5kW split/single-phase hybrid inverter designed for off-grid living, backup power, and grid-tied solar systems.
Coming March 2026!
Two Apps. One Powerful Energy Ecosystem.
The Fortress Power Owner and PRO apps give homeowners and installers the right tools to monitor, manage, and support Fortress Power systems, anytime, anywhere.
Don’t just take our word for it
Our reputation speaks for itself. Hear from our certified Fortress Power installers, industry distribution partners and satisfied homeowners and businesses.
I have been loving the Envy and eVault MAX/eFlex combo. Gary of Fortress Power tech support, absolutely has been the best. He is knowledgeable, patient, and just amazing in helping me commission systems and answering any answer that may come up. Wish I had him on speed dial 24/7. Great overall product and team, thanks!
Steven N, Installer
When Sol-Ark would not support closed loop with my E-flex batteries, the Fortress engineers stepped up to give me tools to update my batteries’ software and helped with connecting the closed loop communications. Thanks to all of my friends at Fortress.
Mark
Quality home and commercial American battery manufacturer. They attract talent within their company and are led by a strong management team.
Andrew Breiter-Wu
Posted on Christopher DominguezFebruary 24, 2026Trustindex verifies that the original source of the review is Google. Omri was excellent help. Great attitude and amazing communication.Posted on Aiden ArnoldMay 22, 2025Trustindex verifies that the original source of the review is Google. Gary was awesome. He worked closely with my installation team (Colorado Mountain Solar) on a holiday to get my firmware updated. Appreciate the dedication to great customer service!!!!Posted on Jim JeffriesApril 29, 2025Trustindex verifies that the original source of the review is Google. Every once in a while .. you need and meet a wizard. My pleasure to meet wizard Gary V today. Fortress power tech and problem solver. Been having some trouble .. no more .. everything is running smoothly. In my opinion.This man deserves a big raise and a nice vacation. Thanks, GaryPosted on Steven RussellApril 25, 2025Trustindex verifies that the original source of the review is Google. Great system, but we have very poor service in our area. Fortress Technical Support is great to work with. Make sure you check out the company that installs your system before buying.Posted on Ken BenderApril 7, 2025Trustindex verifies that the original source of the review is Google. This last weekend and I mean on a Sunday my Fortress battery guy Gary Oosbree, whom I have never met, help me restart my system. I had a Sol-Ark inverter that went bad. My Fortress batteries are humming! All is wellPosted on South EnergyMarch 22, 2025Trustindex verifies that the original source of the review is Google. EL SERVICIO TECNICO DEL CREW DE PR ES EL MEJOR!
Contact Us
Have a question about our systems and products? Select the correct contact form and connect with a Fortress Power representative!
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