Choosing the right energy storage system is about more than just backing up your home or business during a blackout. It’s about long-term reliability, cost savings, and ensuring you have the strength to power through whatever the future holds. Fortress Power delivers on every front. With more storage per unit, stronger backup and surge capacity, higher efficiency, and longer warranties, Fortress Power stands apart as the strongest choice in a crowded market.
More Storage and Power When You Need It Most
Energy storage should give you confidence that your home or business can keep running when the grid fails. Fortress Power systems provide more usable energy per unit than many competitors, ensuring you always have the reserves you need.
Compare that to Tesla’s 13.5 kWh Powerwall+, Franklin WH’s 15 kWh aPower 2, or Enphase’s 20.2 kWh usable IQ10 system. With Fortress, you gain the flexibility to scale, expand, and adapt your system as your energy needs grow. Whether you are securing reliable backup for a residence or building a robust system for light commercial applications, Fortress Power delivers more capacity and more control.
Backup and Surge Capacity That Outperforms the Competition
A battery isn’t just about storage. It’s about strength in the moments you need it most. Fortress Power delivers 12 kW of backup capacity and 24 kW of surge handling, giving you the ability to run high-demand appliances and whole-home systems with confidence.
Tesla provides 11.5 kW of backup with limited surge, FranklinWH offers 10 kW backup with 25 kW surge, and Enphase tops out at just 7.7 kW backup with 10.4 kW surge. With Fortress, your system has the muscle to handle both everyday reliability and emergency demand without compromise.
Efficiency That Saves You More Over Time
Every bit of efficiency matters. When your solar power is stored, you want as much of it as possible to be available when you need it. Fortress Power leads with 96.9 percent CEC-rated efficiency, ensuring maximum energy capture and use.
Competitors fall short: Tesla operates at 89 percent, FranklinWH at 90 percent, and Enphase at 96 percent. That difference may look small, but over thousands of cycles it adds up to significant extra energy and real cost savings in your pocket. With Fortress Power, you get more out of every kilowatt-hour you produce.
Engineered for Real-World Reliability
Not all energy storage systems are designed for the same conditions. Fortress Power builds with flexibility and durability in mind. Our systems are generator compatible, outdoor rated, weatherproof, cold-climate ready with heated options, wall-mountable, and fully serviceable for long-term dependability.
Competitors fall short in critical areas. Tesla systems cannot integrate with generators, FranklinWH lacks heating for cold climates, and Enphase requires additional panels for certain applications. Fortress Power delivers all-in-one solutions that work across climates, installations, and customer needs without extra equipment or limitations.
Fortress Power Stands Above the Rest
Even with all of these advantages, Fortress Power remains competitive in cost per kilowatt-hour, proving that you don’t have to sacrifice performance for affordability. When compared side by side, the results speak for themselves:
- More usable storage
- Stronger backup power and surge handling
- Higher efficiency than Franklin and Tesla
- Longer warranties
- Competitive cost per kWh with greater value overall
Power Your Future with Confidence
The energy storage market offers many options, but Fortress Power stands above them all. We lead in storage capacity, backup strength, efficiency, warranty coverage, and value. That means when you choose Fortress Power, you aren’t just buying a battery. You’re investing in reliability, security, and independence. Take control of your energy and request a quote today.
