SimpliPhi SPHI-ESS-20-6 – 19.92 kWh Energy Storage System with 4 × 4.9 kWh LFP Batteries, 6 kW Hybrid Inverter, EnergyTrak & AGS
The SimpliPhi SPHI-ESS-20-6 delivers a versatile, safe, and scalable energy storage solution designed for both residential and commercial use. Featuring four 4.9 kWh Lithium Ferro Phosphate (LFP) batteries and a 6 kW hybrid inverter, this system offers 19.92 kWh of high-efficiency storage capacity, supporting AC or DC coupling and seamless integration with solar, grid, or generator power.
Its modular architecture allows you to expand energy capacity or power output as your needs grow, while the EnergyTrak monitoring platform provides real-time system insights, remote configuration, and fleet management capabilities. The IP65-rated enclosure ensures reliable performance indoors or outdoors, even in demanding environments.
Key Features
19.92 kWh LFP Energy Storage
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Four high-performance 4.9 kWh batteries for a total of 19.92 kWh.
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Expandable up to 72 batteries for a total of 358.5 kWh.
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Designed for long-term use with 10,000+ cycles at 80% DoD.
EnergyTrak Advanced Control
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Full system monitoring via mobile app for smartphones and tablets.
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5-step commissioning for rapid setup.
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Remote reconfiguration and automatic over-the-air updates for peak performance.
6 kW Hybrid Inverter
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Compatible with solar, grid, and generator in AC or DC coupled configurations.
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<8 ms switchover time ensures seamless backup power.
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Digital LCD interface for on-site programming and status checks.
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Expandable to 54 kW total inverter capacity by adding more units.
Proven LFP Battery Technology
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Cobalt-free Lithium Ferro Phosphate chemistry for superior thermal stability and safety.
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Integrated Battery Management System (BMS) for optimized performance.
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96% round-trip efficiency for maximum energy utilization.
All-Weather Rated
SimpliPHI 6 kW Inverter
Hybrid Inverter with integrated MPPT works seamlessly with the SimpliPHI 4.9 Battery, EnergyTrak, and Mobile App to deliver the most efficient, scalable, easy-to-use backup or primary power system available for homes and businesses.
- Multiple Energy Sources - Designed to pair with solar, grid or generator in either AC or DC coupled configurations
- Versatile - On the grid or off, with or without batteries
- Scalable - Add up to 9 inverters for increased load support for a total of 54 kW
- Seamless Transition - Less than 8 millisecond switchover time protects sensitive electronics and minimizes downtime
- Digital interface - Easy programming and monitoring of primary system functions on the LCD screen
- EnergyTrak Enabled - Remote monitoring and quick 5-step commissioning through EnergyTrak mobile app
- IP 65 - rated for indoor or outdoor installations
- Warranty - Up to 10-year limited warranty*
- Product Brochure | Download
- Installation Manual | Download
- Specification Sheet | Download
EnergyTrak Control System
Provides advanced system monitoring through a sophisticated mobile app for smartphones or tablets, delivering real-time status and updates with intuitive control over the entire SimpliPHI Energy Storage System.
- Simple, Smart, and Reliable - EnergyTrak offers an ever-improving platform to maximize value over the life of the system
- Streamlined - 5-step commissioning for fast, frustration-free setup from a mobile device
- Fleet Management - Visibility into customer installations to maximize system uptime
- Remote Re-configuration - Minimizes the need for site visits on commissioned systems
- Over-the-Air Updates - Automatically ensures systems and apps are secure and code-compliant with the latest features
- Connectivity - Wi-Fi, ethernet, and Bluetooth for simple, dynamic communication
- Product Brochure | Download
- Installation Manual | Download
SimpliPHI 4.9 Battery
Leveraging over a decade of battery expertise using Lithium Ferro Phosphate (LFP) chemistry, the SimpliPHI 4.9 Battery delivers efficient, reliable, and safe advanced-level power storage.
- Scalable - Up to 72 batteries with a total capacity of 358.5 kWh
- Closed-Loop Communications - Seamlessly integrate with other system components to streamline programming and ensure peak performance
- Battery Management System (BMS) - Proprietary state-of-the-art BMS protects the battery, creates additional safety, and extends cycle life
- Long Lifespan - 10,000 cycles at 80% DoD
- Maximum Energy Throughput - 34.9 MWh with 96% round trip efficiency increases the value of your storage investment over the life of the battery
- Retained Capacity - 80% remaining capacity after 10 years of use
- Safety-tested - Lithium Ferro Phosphate (LFP) chemistry is industry proven to reduce thermal runaway and fire propagation in residential and commercial installations
- IP 65 - Rated for indoor or outdoor use
- Warranty - 10-year limited warranty*
- Product Brochure | Download
- Installation Manual | Download
ESS Series Comparison
| Model |
Batteries |
Total Capacity (kWh) |
Total Power (kW) |
Inverters (6 kW) |
Includes AGS |
| SPHI-ESS-10-6 |
2 × 4.98 kWh |
9.96 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-15-6 |
3 × 4.98 kWh |
14.94 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-20-6 |
4 × 4.98 kWh |
19.92 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-25-6 |
5 × 4.98 kWh |
24.90 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-20-12 |
4 × 4.98 kWh |
19.92 |
12 |
2 × 6 kW |
Yes |
| SPHI-ESS-25-12 |
5 × 4.98 kWh |
24.90 |
12 |
2 × 6 kW |
Yes |
| SPHI-ESS-30-12 |
6 × 4.98 kWh |
29.88 |
12 |
2 × 6 kW |
Yes |
| SPHI-ESS-30-18 |
6 × 4.98 kWh |
29.88 |
18 |
3 × 6 kW |
Yes |
| SPHI-ESS-40-18 |
8 × 4.98 kWh |
39.84 |
18 |
3 × 6 kW |
Yes |
