Residential Energy Storage
Smart, Dependable and Proven.
Custom Solutions
For Every Application
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.
Get Fortress Power and Secure Your Energy Today
Find a certified installer or buy online and do it yourself.
why fortress power?
Safe, Secure & Reliable
Tier-1 Lithium Iron Phosphate Chemistry
Top-grade LFP technology for safe reliable indoor and outdoor energy storage
Up to 25 Year Warranty
Our Products are backed by our industry-best warranty up to 25 years*
Local Support
First Class technical support with offices on the East and West coast, Puerto Rico and Hawaii
Residential Products
Avalon ESS
High Voltage Smart Energy Storage System
eFlex Max
eFlex Max 5.4 kWh LFP Battery
eForce 9.6kWh
eForce 9.6kWh LFP Battery
eVault Max 18.5kWh
eVault MAX 18.5 kWh LFP Battery
Envy True 12
Envy 12kW 48v Inverter for Fortress Power Batteries
Envy 8k/10k
Envy 8kW & 10kW 48v Inverter for Fortress Power Batteries
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!
Find a Certified Installer
Fortress power has a network of certified installers. answer a few short questions and we will connect you with a qualified installer.
Looking to Do it Yourself?
Fortress power products are available from a number of online retailers. If you are looking to buy online and DIY visit our where to buy page.
