Resilient clean energy for all
Smart Energy Storage Solutions for Homes & Businesses
Why Energy STorage?
Reduce Energy Costs
Energy storage allows you to store excess solar power, reducing reliance on the grid and lowering electricity bills.
REduce Carbon Footprint
By using stored solar energy, you minimize dependence on fossil fuels, contributing to a cleaner environment.
POwer outage protection
Solar batteries provide backup power during outages, ensuring uninterrupted energy supply for your home or business.
Off-grid independence
Energy storage gives you the flexibility to live or operate in remote areas without access to the traditional power grid.
Why Fortress Power?
Industry leading warranty up to 25 years
We’re setting industry standards with cutting edge battery technology, super durable product hardware and intelligent energy management. Our advanced LFP battery technology has the longest life cycle (8000+ cycles).
Earn upfront and ongoing incentives
Our energy storage systems enable seamless Virtual Power Plant (VPP) participation, earning you upfront and ongoing incentives while supporting grid stability and a sustainable energy future.
Proven Quality
As an industry pioneer, we’ve supplied Uninterrupted Clean Energy to 40,000+ homes and businesses around the globe with the highest quality products.
Local Support Engineers
Knowlegable in-house engineers and local dealer partners are available 7 days a week to provide you best-in-class support.
Residential, Commercial and Industrial
Energy Storage Solutions

Our Residential solutions provide homeowners with reliable backup power, lower energy costs, and the ability to participate in grid programs for additional savings.

For Commercial & Industrial applications, our scalable storage systems optimize energy management, reduce peak demand charges, and enhance resiliency.

Did you know?
Your Fortress Power System can Earn you Money
With Fortress Power’s Energybroker VPP program, you can sell your extra energy back to the grid and earn passive income. It’s a simple way for you to let your Fortress Power energy system start paying you back!
We Have You Covered
Residential, Commerical and Industrial Applications

Whole Home Backup
Keep your entire home powered during outages with a reliable solar energy storage system

Off-Grid Living
Achieve true grid independence by choosing a self-sustaining solar storage solution

Energy Independence
Reduce reliance on the grid and take control of your energy usage with solar energy storage

Reduce Energy Costs
Solar storage can help to reudce your peak charges from the utility company to save money.

Zero Export
Ensure all your solar energy is consumed or stored onsite, minimizing grid dependency.

Demand Mitigation
Reduce peak energy usage by storing solar power, lowering utility costs and demand charges.

EV Charging
Combine solar and battery storage to deliver efficient, cost-effective energy for commercial charging stations.

Microgrid
Microgrids can help businesses by providing a cost-effective solution for managing energy usage and saving money
Client Testimonials
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 Business Owners.
Lee ShusterMarch 11, 2025Trustindex verifies that the original source of the review is Google. Caroline Poroski is a customer-centric professional that listens carefully and answered all my questions. It's rare to encounter such professionalism these days! Kudos to Caroline! Mark MoxMarch 6, 2025Trustindex verifies that the original source of the review is Google. 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 Fortess. Mark Mox, Michigan Christian OrtizMarch 4, 2025Trustindex verifies that the original source of the review is Google. Llevo poco mas de 5 años trabajando con sistemas solares en PR y la velsatilidad que brinda Fortress no tiene comparacion. Exelente servicio de Hector Sanchez (Account Manager) y exelente compromiso de Maria Elena (Directora de Latam & PR) con los clientes y las compañias instaladoras. Recomiendo el producto 100% para su confiabilidad y tranquilidad para su negocio o casa. Jose "West" Pagan-SanabriaMarch 4, 2025Trustindex verifies that the original source of the review is Google. Great Team, Great Company, Great Leadership, Great Technology ! Highly Recommended! One of the best Technical Support Team! Daniel OcasioMarch 4, 2025Trustindex verifies that the original source of the review is Google. I had the pleasure of working with Maria Elena Barrera from Fortress Power, and I can confidently say that her professionalism, expertise, and dedication to customer satisfaction are unmatched. She is incredibly knowledgeable about advance LFP technology and solar energy solutions and goes above and beyond to ensure clients receive the best support possible. Maria Elena’s prompt responses, clear communication, and problem-solving skills make her an invaluable asset to Fortress Power. Whether addressing technical inquiries or guiding customers through product solutions, she consistently delivers exceptional service. I highly recommend working with her for anyone in need of reliable and efficient energy storage solutions! It’s a ⭐️⭐️⭐️⭐️⭐️ Company! Ron ZanottiMarch 4, 2025Trustindex verifies that the original source of the review is Google. I had a BMS issue in one of my 2 eVault Classic subsystems causing a deep discharge and total outage on it. When I recognized the outage, I sent a email to Fortress technical support where it was quickly responded to by one of their techs Luis. What made the experience a 5 star rating is that Luis responded quickly and was genuinely concerned about getting my system fixed quickly and correctly. He inquired daily about whether their local reseller was responding to my satisfaction. You don’t see that level of concern from vendors much any more. And guess what, the reseller did a phenomenal job restoring my system to 100%! Thank you Fortress support! Blanca andrea Pérez mendezMarch 4, 2025Trustindex verifies that the original source of the review is Google. Una presentación muy completa de todos los productos que distribuyen y la explicación explícita. Con una gran oportunidad de crecer en el mercado de la mejor manera, con excelente calidad y sobretodo muy completa s cMarch 3, 2025Trustindex verifies that the original source of the review is Google. We have two Fortress eVault Max18.5 batteries and had communication problems between the batteries and the Inverter. This happened after a long period of cloudy weather (weeks). I requested a ticket from Fortress and over a period of 5-7 days was helped by three engineers: Carlos Davila, Luis Gustavo Rodriguez, and Jeremy Roberts. These men were polite, informative and helpful. I installed a Guardian monitor, but it wouldn't work, so Jeremy called me back on my personal phone and walked me through the setup for both batteries. It works. Jeremy was unbelievably patient, kind and helpful. He is a credit to Fortress Power! Donald ThuenteFebruary 24, 2025Trustindex verifies that the original source of the review is Google. I had a technical issue with my inverters on my solar system and the correction was tricky because i am off grid. The fix also dragged into after hours on Friday night and my tech Jeremy did everything he could to make sure I was up and running before nightfall. Very thankful for his ability to help and willingness to work after hours. He went above and beyond! luis eduardo valencia montoyaFebruary 11, 2025Trustindex verifies that the original source of the review is Google. NUESTRA ASOCIACION DE TECNICOS ELECTRICISTAS DE ANTIOQUIA "ASTEAA" SIEMPRE ESTARÁ DE PUERTAS ABIERTAS A TODAS LAS TECNOLOGÍAS DE LAS ENERGÍAS RENOVABLES
Financing Partners
We have partnered with trusted financing providers making it easier than ever to invest in energy storage solutions. Our financing partners are committed to helping you achieve energy independence and sustainability without compromising your budget.






