ESS Specs Guide
Tesla Powerwall 3 + Gateway 3
System Type
Fully integrated solar + battery ESS with hybrid inverter.
Power Rating Range
• 11.5 kW AC output per Powerwall 3
expandable up to 4 Powerwall 3s
• 20 kW DC solar inverter
Load Start Capability
•185 LRA
Load Management Capability
• Service-entrance rated Gateway 3
• Software-based control (no smart loads)
Generator Integration Support
• No native generator support
Storage Capability
• 13.5–94.5 kWh per system
Efficiency
Solar to Battery to Home/Grid Efficiency 89%
Solar to Home/Grid Efficiency 97.5%
Warranty – 10 Years
EcoFlow Ocean Pro + Ocean Smart Electrical Panel 40
System Type
Whole-home ESS with hybrid inverter and 40-circuit smart main panel.
Power Rating Range
• 10 kW per Battery, up to 24kWh
• 40 kW PV input
Load Start Capability
• 205 LRA
Load Management Capability
• 40 controllable circuits with Ocean Pro Smart Panel 40
• 40 circuits / 8 controllable with Ocean Pro Smart Panel 8
• 200 A panel, 262 A busbar
Generator Integration Support
• Up to 24 kW generator input (standard), Portable generator or Standard Generator
Storage Capability
• 10–80 kWh scalable
Efficiency
• Solar to Battery to Home/Grid Efficiency 89%
• Solar to Home/Grid Efficiency 97.5%
Warranty – 15 Years
SigEnergy ESS + Sigen LoadHub (US Market)
System Type
Hybrid ESS with Sigen Energy Controller, SigenStor LFP batteries, and LoadHub.
Power Rating Range
• 11.5 kW AC output
• 4 MPPTs
• 0 ms transfer
Load Start Capability
• 190 LRA
Load Management Capability
• 200 A LoadHub
• 5 smart loads
• App-based automation
Generator Integration Support
• 64 A continuous
Storage Capability
• 6 or 9 kWh stackable batteries
• 6 – 54.24 kWh per stack
Warranty – 10 Years
EG4 FlexBoss + GridBoss + EG4 WallMount ESS
System Type
Hybrid ESS with FlexBoss inverter, GridBoss MID, and WallMount LFP batteries.
Power Rating Range
• 13–16 kW output
• 18–21 kW PV input
Load Management Capability
• 200 A GridBoss
• 4 smart ports
• Load shedding profiles
Generator Integration Support
• Supports up to 125 A generator
Storage Capability
• 14.3–85.8 kWh
Warranty – 10 Years
Enphase 4th Gen: IQ Battery 5P / 10C + IQ System Controller 3G
System Type
AC-coupled ESS using IQ Batteries and System Controller.
Power Rating Range
• 3.84 kW per battery
• Scalable to 80 kWh
Load Management Capability
• IQ Load Controller for smart circuits
Generator Integration Support
• Supported via System Controller 3G
Storage Capability
• 5–80 kWh
Warranty – 15 Years
FranklinWH aPower S + aGate
System Type
AC or DC – coupled ESS with aPower S battery and aGate hub.
Power Rating Range
• 15 kWh per battery
• Up to 225 kWh
Load Management Capability
• Smart Circuits Module (add on purchase)
• TOU & load shedding
Generator Integration Support
• Optional generator module (Add-on purchase)
Storage Capability
• 15–225 kWh
Warranty – 15 years
