The EG4 is the only UL 9540 certified off-grid energy storage system (ESS) available in Miami and Broward. Designed for residential and commercial properties, it ensures reliable, efficient, and safe energy storage. Whether you want full energy independence, backup power during outages, or optimized solar usage, the EG4 provides a cutting-edge solution tailored for South Florida conditions.
Why choose EG4 for your off-grid installation?

UL 9540 Certification: EG4 is the only off-grid system UL 9540 certified, ensuring it meets the highest safety and performance standards in energy storage. This provides peace of mind for both residential and commercial applications.
Seamless integration with GridBoss and FlexBoss:
FlexBoss: Enables smart load management and integration with multiple renewable energy sources, ensuring every watt is used efficiently.
GridBoss: Optimizes the connection to the grid when needed, allowing efficient energy flow and maximising system autonomy.
The EG4 GridBOSS beats every Microgrid Interconnect Device (MID) / power gateway on the market in terms of capabilities and ratings. The GridBOSS simplifies the design and operation of complex solar installations, reducing hardware costs and installation time.
The GridBOSS serves as a centralised connection point for utility power, up to three 90A hybrid inverters, four programmable smart/AC-couple ports, and a generator (up to 125 Amps). It is rated for 200 Amps for both backed-up and non-backed-up loads.
When paired with the FlexBOSS21, the GridBOSS significantly reduces installation expenses by eliminating extra components and installation time


Advanced battery system: The core of EG4 is its storage solution, designed to deliver reliable energy during outages, peak demand, and adverse conditions, with long lifespan and minimal maintenance.
Convenience and ROI: Installing an EG4 not only provides energy independence but also reduces energy costs and creates potential revenue opportunities through distributed energy programs or commercial charging services.
The EG4 WallMount 280Ah All Weather Battery delivers 14.3 kWh of storage with a max continuous discharge of 140A. Equipped with integrated self-heating, EMP-hardening, and a 10-year warranty, it is designed to endure both natural and manmade disruptions.
FAQs:
Ensures safety, fire resistance, and compliance for energy storage systems.
Yes, for both residential and commercial applications.
It stores excess solar energy for later use, optimizing savings and providing backup power.
Yes, to ensure safety, compliance, and warranty protection.
Minimal: mainly software monitoring and periodic inspection.
EG4 offers a reliable and efficient solution for Miami and Broward.
Contact Add Solar & Electrical today to schedule your EG4 off-grid ESS consultation and secure your energy independence.
