EG4® PowerPro 18kPV WallMount All Weather ESS
UL 9540 Certified
The PowerPro 18kPV WallMount All-Weather Energy Storage System (ESS) is designed for scalable, reliable energy storage. Its plug-and-play installation simplifies setup, while the weather-resistant design ensures durable, consistent performance, making it a reliable backup during outages.
This system has multiple options and configurations, making it a flexible solution for high storage applications. Certified to UL 9540 standards, EG4 ESS systems are rigorously tested to verify that inverters and batteries work safely in specific configurations. This certification ensures peace of mind with each installation, even where UL 9540 compliance isn’t required.
Easy Setup:
Plug-and-play design simplifies installation
All-Weather Durability:
Built to perform reliably in various conditions
Reliable Backup:
Provides dependable power during outages, supporting energy independence
Flexible Application:
Supports both on-grid and off-grid setups
Powerful Output:
Provides robust capacity for high energy demands
Optimized Energy Use:
Hybrid inverter balances solar, grid, and battery power
Expandable Design:
Easily scale up to meet future energy needs
Smart Monitoring:
Compatible with remote performance tracking
When configured as a UL certified ESS:
Min configuration:1 EG4 18kPV Hybrid Inverter and 1 PowerPro WallPower All Weather 280Ah Battery
Max configuration: 2 EG4 18kPV Hybrid Inverters and 3 PowerPro WallPower All Weather 280Ah Batteries
Total Output Power (kW): 12-24kW
Total Energy Capacity (kWh): 14.3-42.9 kWh
UL 1741 Hybrid Inverter EG4 18kPV: 12kW (120/240V)
UL 1973 | 9540A Battery: 51.2V 280Ah WallMount
ETL listed to UL 9540: IP65 All Weather Rated
Additional max configurations are possible by spacing ESSs 3 ft apart per NFPA 855 and IRC R328 guidelines.
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FAQs
An Energy Storage System (ESS) is a collection of batteries, inverter(s) and other components that allow the storage of energy for later use. The term is most often used in conjunction with on-grid systems with batteries but could also be applied to off-grid systems.
Many jurisdictions require UL9540. To get this certification, the battery and inverter must pass stringent safety tests as a pair with specific configurations. An EG4 ESS is one that has been independently certified to pass these requirements using batteries and hybrid inverters. Even if your jurisdiction does not require a UL9540, choosing a UL9540 system gives you the peace of mind that the components have been tested by an independent lab to assure they work safely together.
Each system will be different, but the primary components of an ESS will include batteries, a hybrid inverter, a solar charge controller (usually bundled in the inverter) and solar panels. However, there will be many other smaller components (known as the balance of system) that are required to set up a system properly and safely. This can include things like wires, conduit, solar panel mounting hardware, switches, and fuses.
An ESS can store energy from many different sources. The most common source of energy stored by an ESS is solar, but any form of energy could be used in the system including renewable energy (solar power, wind power, hydro power), generator, grid, etc. An EG4 ESS is designed with a focus on energy from solar and the grid, as well as AC coupling (generators).
There are several reasons to install an Energy Storage System (ESS). One reason is to store energy generated from solar or other renewable sources for times when the primary source is unavailable. Another benefit is to power loads during grid outages, ensuring continuity of electricity supply. Additionally, an ESS enables the shifting of grid usage to off-peak hours, a practice known as peak shaving, which helps balance demand and alleviate strain on the grid during peak periods. Moreover, by facilitating the redistribution of grid usage to off-peak hours, the system contributes to grid stability by smoothing out demand fluctuations and reducing the occurrence of peak loads that the grid may struggle to accommodate.
Yes, depending on how the system is configured. An ESS can be optimized for load shifting, grid failures or a balance of both.
Yes. An ESS uses a hybrid inverter that is grid interactive, so it can be programmed to sell back to the grid at any time. Depending on the net metering program available for your utility, this can make a lot of sense financially.
Yes, you can add your existing system to certified EG4 ESS and classify it as EG4 ESS system. Please contact our technical support for more information.
EG4 system is designed for scalability. You can always add more batteries and inverters in the near future as your energy needs grows and classify your system as certified.
