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March 2025

Key Benefits of Pairing Solar Panels with Fortress Power Batteries

Blog, Solar Batteries

With rising energy costs and a growing push toward sustainability, homeowners and businesses are turning to solar power to reduce electricity bills and carbon footprint. However, without proper energy storage, much of that solar energy goes unused. That’s where Fortress Power batteries come in. By pairing solar panels with Fortress Power’s advanced lithium-iron-phosphate (LiFePO4) battery storage, you can achieve greater energy independence, maximize savings, and ensure reliable backup power. Here’s why this combination is a game-changer for sustainable energy solutions.

1. Achieve Energy Independence with Solar Battery Storage

By integrating Fortress Power batteries with your solar panels, you can store excess solar energy and use it when needed. Whether that be day or night, during cloudy weather, or even in power outages. This reduces dependence on the grid and provides peace of mind in case of emergencies. Check out the eFlex 5.4kWh battery for a compact, scalable solution.

Fortress Power eFlex, a 5.4 kWh scalable energy storage solution based on safe and energy dense prismatic Lithium Iron Phosphate cells.
2. Lower Your Electricity Bills with Battery Storage

Without a battery, unused solar energy is sent back to the grid, often at a lower compensation rate. With Fortress Power batteries, you can store this excess energy and use it later. This ultimately reduces the need to purchase electricity from the grid during peak hours when rates are higher. The eVault Max 18.5kWh battery is perfect for larger energy storage needs.

3. Reliable Backup Power: Stay Connected During Outages

Power outages can be disruptive. But, with a Fortress Power battery, your stored solar energy ensures critical appliances and devices remain operational. This goes for keeping the lights on, preserving food in the fridge, or running essential medical equipment. A solar-plus-storage system offers unmatched resilience. Our eForce whole-home ESS provides a reliable and robust backup power solution for larger energy need, making sure your home stays powered during any emergency. Paired with the Guardian Smart Energy Management System, you can optimize backup power usage efficiently.

Paired with the companion app, the Guardian enables battery-level monitoring of key values such as state of charge, voltage, current and Battery temperature.
4. Beat Peak Utility Rates with Smart Energy Management

With utility companies increasingly adopting time-of-use (TOU) pricing, electricity rates can spike during peak demand hours. A home battery storage system allows you to store excess solar power when rates are low and use it when prices surge, lowering your overall electricity costs. You maximize energy savings and gain greater control over your power usage by optimizing self-consumption.

5. Go Green with Eco-Friendly Solar Battery Storage

Fortress Power’s lithium-iron-phosphate (LiFePO4) batteries provide safe, efficient, and long-lasting energy storage for solar systems. By integrating solar battery storage, homeowners and businesses can reduce reliance on fossil fuels, lower greenhouse gas emissions, and maximize renewable energy usage for a truly sustainable solution.

6. Seamless System Integration

Fortress Power batteries are designed for smooth integration with existing or new solar panel systems. Their intelligent energy management capabilities ensure optimal performance, enhancing the overall efficiency and longevity of your solar investment. Learn more about the Envy True 12Kw and Envy 8kW & 10kW inverter for all-in-one energy solutions.

Power your home with the Fortress Power Envy 8kW or 10kW—an all-in-one inverter solution with whole-home backup, seamless on/off-grid capabilities, and smart monitoring from anywhere.
7. Scalability & Future-Proofing

As your energy needs evolve, Fortress Power batteries provide scalable options that grow with you. With flexible options, you can easily expand your energy storage capacity to meet increasing demand, ensuring your system remains future-proof without the need for major upgrades.

Take Control of Your Energy Future Today

Pairing solar panels with Fortress Power batteries is an investment in security, cost savings, and sustainability. Whether for your home or business, this combination maximizes your solar energy system’s potential. Contact Fortress Power today and become one step closer to achieving true energy independence.

Real-World Case Studies: How Fortress Power’s Battery Storage Solutions Enhance Energy Independence

Blog, Case Studies, Solar Batteries

In today’s world, energy independence is more important than ever. With rising electricity costs, grid instability, and increasing demand for sustainable energy solutions, homeowners and businesses are turning to reliable battery storage. Fortress Power’s advanced energy storage solutions provide clean, efficient, and scalable alternatives to traditional power source and ensure uninterrupted electricity in any situation.

The following case studies showcase how real customers have used Fortress Power’s battery systems to achieve off-grid independence, seamless backup power, and future-ready energy solutions.

1. Reliable Off-Grid battery Backup Without Solar | Dorado, PR

Site Type: Residential
Key Components: ENVY 8kW Inverter + eForce 9.6 kWh Battery

A homeowner in Dorado, Puerto Rico needed a quiet, emission-free backup power solution without relying on solar panels. The Fortress Power ENVY 8kW inverter and eForce 9.6 kWh battery delivered uninterrupted power without noisy gas or diesel generators. The system is DC-coupled and future-ready. This allows for easy integration with solar panels or a generator when the homeowner decides to expand.

Key Benefits:
➡️ Seamless Backup Power Without Solar: Keeps the home running even before solar installation.
➡️ Quiet & Emission-Free: Eliminates the noise and pollution of fuel-based generators.
➡️ Safe Indoor Placement: Advanced LFP (lithium-iron-phosphate) chemistry ensures safety inside the home.
➡️ Lowers Utility Bills: The homeowner reduced monthly electricity costs to $50 per month with LUMA.
➡️ Future-Ready Design: Easily expandable with solar panels or a backup generator.
👉 Explore the ENVY 8kW Inverter | Learn More about eForce 9.6 kWh Battery

2. Self-Sustaining RV Energy Solution | Aguas Buenas, PR

Site Type: Mobile Home (RV)
Key Components: ENVY 8kW Inverter + eForce 9.6 kWH Battery

Living off-grid in an RV comes with unique energy challenges, including space limitations and the need for fully independent power. A homeowner in Aguas Buenas, PR, needed a compact, self-contained battery system that could supply 100% off-grid electricity—without relying on utility connections or fuel generators. 


Key Benefits:
➡️ Compact & Efficient Design: Ideal for small spaces in RVs.
➡️ True Off-Grid Independence: Eliminates the need for diesel, gas, or grid power.
➡️ Safe for Indoor Use: LFP battery spaces.
➡️ Future-Proof: Ready for easy solar panel or generator integration.

3. Upgrading From Portable Units to a Whole-Home Energy System | Ceiba, PR

Site Type: Residential Walk-Up
Key Components: 19.2 kWh Battery Storage, ENVY 8kW Inverter

A growing family in Ceiba, PR, previously relied on small, portable power units totaling just 5.1 kW—which wasn’t enough to support high-demand appliances like dryers and refrigerators. They upgraded to a Fortress Power system with 19.2 kWh storage, ensuring reliable 240V operation for large appliances while maintaining efficiency in their apartment.

Key Benefits:
➡️ Nearly 4x Storage Increase: Upgraded from 5.1 kWh to 19.2 kWh, ensuring ample energy supply.
➡️ Reliable 240V Operation: Supports power-hungry appliances like dryers without interruptions.
➡️ Indoor-Friendly & Safe: Compact LFP design allows installation in apartments.
➡️ Scalable & Future-Ready: The family can expand storage as energy needs grow.

4. Future-Ready Off-Grid Power for a Remote Home | Moca, PR

Site Type: Remote Off-Grid Home
Key Components: 4 x 560W Solar Panels + ENVY 8kW Inverter + eForce 9.6 kWH Battery

For a homeowner in Moca, living completely off-grid was a necessity due to the remote location. With limited internet access and the need for budget-friendly system expansion, the Fortress Power system provided a resilient and scalable energy solution using the existing solar panels.

Key Benefits:
➡️ Reliable Off-Grid Power: Delivers continuous electricity without utility lines.
➡️ Minimal Internet Dependence: Operates smoothly without frequent online updates.
➡️ Budget-Friendly Expansion: Future upgrades can be done incrementally.
➡️ Optimized Solar Efficiency: Maximizes power output from existing 560W solar panels.
Why Fortress Power?

Fortress Power is an industry-leader in battery storage solutions for homes, businesses, and mobile applications. Our LFP battery technology, scalable storage options, and seamless solar integration ensure you always have access to clean, reliable energy—no matter your location or energy needs.

Key Advantages of Fortress Power Systems:
  • Unmatched Reliability: Industry-leading battery lifespan and backup power.
  • Future-Ready Flexibility: Easily integrates with solar panels, generators, and expanding energy needs.
  • Sustainable & Safe: Lithium-iron-phosphate (LFP) technology offers long-term safety and efficiency.
  • Proven Real-World Performance: Trusted in homes, RVs, and off-grid locations worldwide.

Ready to achieve energy independence? Get in touch with Fortress Power today to explore the perfect battery storage solution for your needs and take control of your energy future.

Fortress Power Shines on Discovery’s Homestead Rescue with their Energy Storage System

Blog

Fortress Power Shines on Discovery’s Homestead Rescue

At Fortress Power, we take pride in providing reliable, sustainable energy solutions for homeowners looking to achieve energy independence. That’s why we were thrilled to see our battery storage system featured on Discovery’s Homestead Rescue! In the episode titled “Hawaii Five-No”, our technology helped a Hawaiian homestead secure a dependable off-grid power solution—proving once again that solar energy storage can empower even the most remote locations.

Powering Resilient Living in Hawaii

A Big Island family found their off-grid paradise under siege by destructive storms, deadly pests, and invasive strawberry guava. Their six-acre property lacked a reliable power source, making daily life a challenge. Previously, they relied on a basic 12-volt system, which was insufficient for their growing needs. One of their biggest struggles was finding a way to pump water from their catchment system throughout the entire property.

With the new Fortress Power system, they now have the ability to power essential appliances that were previously out of reach. Thanks to their upgraded energy storage, they can now run a refrigerator and freezer for food storage, as well as a washer and dryer—transforming their daily lives with modern conveniences.

When the Homestead Rescue team arrived, they knew a reliable energy solution was crucial for survival. With the help of Fortress Power’s cutting-edge battery technology, the homeowners gained a dependable energy storage system to keep their property powered, no matter the conditions. The new system, consisting of two eFlex 5.4kWh LFP Batteries and an Envy 8k inverter, along with third-party solar panels, ensures that solar energy is stored efficiently, providing power day and night.

Fortress Power Envy Inverter and eFlex System

A Shoutout to Our Amazing Installer Partner

Great solar solutions require great installers! We want to highlight the incredible work of Hirayama Brothers Electric, who expertly installed our system in this episode. Their dedication and expertise ensured that the homestead received a top-tier energy storage solution, further demonstrating the impact our installer partners make in communities everywhere. Whether it’s a remote off-grid setup or a suburban home looking to cut energy costs, our partners go above and beyond to deliver sustainable power solutions.

Fortress Power Envy Inverter

Why Fortress Power?

Our appearance on Homestead Rescue is a testament to the growing need for reliable energy storage solutions. Here’s why more homeowners and installers choose Fortress Power:

  • Long-lasting performance – Our 25-year warranty ensures energy independence for decades.
  • Scalability – Easily expand storage capacity to meet increasing energy needs.
  • Faster installation – Designed for a hassle-free setup to get homes powered quickly.
  • Resilient in any environment – From Hawaiian Islands to the toughest climates, our systems are built to last.

Watch the Episode & Learn More

Want to see Fortress Power in action? Watch Homestead Rescue Season 6, “Hawaii Five-No”, on Discovery.

Are you ready to bring the power of solar energy storage to your home? Learn more about our solutions and find a Fortress Power installer near you.

Fortress Power Introduces eForce | A Game-Changing Energy Storage Solution

Press Release

Fortress Power Introduces eForce

A Game-Changing Energy Storage Solution

Philadelphia, PA – March 5, 2025: Fortress Power, a global leader in energy storage solutions, is proud to announce the launch of its newest product, eForce—a modular, stackable and VPP ready energy storage system designed to meet the evolving needs of homeowners and businesses seeking advanced and reliable power solutions.

The eForce is built to deliver unmatched performance and flexibility. With its robust all-weather design and user-friendly features, eForce ensures a seamless energy experience while optimizing storage efficiency. Each 9.6kWh Lithium Iron Phosphate (LFP) battery module offers unparalleled durability and fast charging capabilities, delivering 8,000+ cycles.

“Fortress Power is renowned for delivering durable and reliable energy storage solutions to both off-grid and grid-tied customers across North and Latin America,” said Matthew Daniel, Product Manager for eForce. “eForce represents a major step forward for Fortress Power and for the energy storage market as a whole.”

eForce seamlessly integrates key components to enhance efficiency and streamline installation. At the heart of the system is the eWay—a specialized wireway equipped with built-in busbars, conduit ports, and an emergency switch, simplifying system connectivity. For even greater functionality, the Fortress Power Envy True 12kW inverter bolts directly onto the eWay, creating a sleek and efficient energy storage tower that optimizes space and performance. Each battery module is connected through two Wireless Quick Plugs, making adding battery capacity effortless.

Key Features of the eForce:

  • Modular, Stackable Design: LFP Lithium units with 9.6kWh capacity each, allowing for scalable solutions.
  • All-Weather Durability: Built-in temperature-controlled heating and outdoor rated enclosure ensures reliable operation in diverse climates.
  • High Capacity: Up to 16 batteries can form a massive 153kWh system.
  • User-Friendly Indicators: Real-time status LEDs for immediate system information.
  • Superior Longevity: 8,000 cycles guaranteed with fast charging capability without cell degradation.
  • Virtual Power Plant Support: Homeowners in eligible areas can generate revenue from their system.

“We’ve designed it to not only deliver superior performance and safety but to also simplify installation and operation for dealers and installers,” added Daniel. “eForce will help our partners reduce installation times and boost their productivity, through Wireless Quick Plug and Integrated Design concept.”

For dealers and installers, eForce is a game-changer. Its intuitive design reduces installation times, allowing for increased job bookings and better overall efficiency.

Homeowners and businesses can monitor and control their eForce systems anytime and anywhere using the Fortress Power Guardian Monitor, paired with the Guardian App available on both the App Store and Google Play.

For more information about Fortress Power and eForce, visit www.fortresspower.com/products/eforce.

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Headquartered in Langhorne, PA, Fortress Power is a global leader in designing and manufacturing advanced Lithium Iron Phosphate (LFP) battery energy storage systems for residential, commercial, and industrial applications. The company operates across North America, the Caribbean, Central America, and Asia. With award-winning local live technical support and partnerships with leading financial institutions, Fortress Power makes investing in solar and storage simple, accessible, and highly reliable.

Media Contact:
Anthony Pingicer
Marketing Director
Fortress Power
[email protected]
877-497-6937

Fortress Power Joins Forces with Solar Insure

Press Release

Fortress Power Joins Forces with Solar Insure

New Collaboration Provides Unmatched Peace of Mind for Homeowners

Langhorne, PA – March 3, 2025: Fortress Power, a leader in residential and commercial battery energy storage systems, is excited to announce its collaboration with Solar Insure, the leading solar system monitoring and warranty solutions provider. Solar Insure has named Fortress Power as an approved vendor, offering homeowners unmatched protection with Solar Insure’s industry-leading 30-year monitoring and warranty coverage and Fortress Power’s whole home energy storage systems.

This collaboration ensures that homeowners who invest in Fortress Power’s energy storage systems can enjoy worry-free ownership, long-term reliability, and greater flexibility in managing their energy systems.

“We’re excited about working with Solar Insure and what it means for our company moving forward,” said Ed Davis, COO of Fortress Power. “Fortress is proud to be one of the select battery energy storage providers approved for Solar Insure’s warranty and service coverage. With Solar Insure, Fortress Power now offers homeowners a level of confidence and security that’s second to none. We’re empowering homeowners to take full control of their energy independence without worrying about maintenance or hidden costs – a game-changer for the renewable energy market.”

With Fortress Power and Solar Insure, homeowners receive:

  • Exceptional Warranty Coverage: Enjoy a 30-year warranty with Solar Insure, providing better value than traditional leasing options.
  • System Ownership Benefits: Own your energy system and gain the freedom to participate in VPP programs, increase your power capacity, and expand your system anytime — all while maintaining control over pricing.
  • Reliable Service Coverage: Solar Insure takes care of service costs for covered claims, providing homeowners with peace of mind.
  • No Out-of-Pocket Costs: With $0 deductible and truck roll coverage, homeowners are protected from unexpected repair expenses. Solar Insure pays installers directly for any necessary repairs.

This collaboration reaffirms Fortress Power’s commitment to providing the highest standards in clean energy solutions, making renewable energy ownership a smarter and more secure investment for families across the country.

”Our collaboration with Fortress Power is elevating industry standards by combining cutting-edge energy storage with Solar Insure’s warranty solutions,” added  Dean Chiaravallotti, CRO of Solar Insure. “Together, we’re providing homeowners with long-term confidence and giving solar providers the tools to deliver greater value and reliability.”

Solar Insure is a firm believer in the transformative revolution of solar energy to enrich lives and pave the way for a sustainable future. Their mission is to make the adoption of solar technology seamless, accessible, and a secure investment for contractors and homeowners.

For more information about Fortress Power and its collaboration with Solar Insure, visit www.fortresspower.com or www.solarinsure.com.

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Headquartered in Langhorne, PA, Fortress Power is a global leader in designing and manufacturing advanced Lithium Iron Phosphate (LFP) battery energy storage systems for residential, commercial, and industrial applications. The company operates across North America, the Caribbean, Central America, and Asia. With award-winning local live technical support and partnerships with leading financial institutions, Fortress Power makes investing in solar and storage simple, accessible, and highly reliable.

Media Contact:
Anthony Pingicer
Marketing Director
Fortress Power
[email protected]
877-497-6937

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