GoodWe 11.4kW SBP-US Series Split Phase AC-Coupled Retrofit Inverter GW11K4-SBP-US20
MPN No: GW11K4-SBP-US20
Expected ship date Sep 08 - 15
In Stock
$1,385.00
GoodWe 11.4kW SBP-US Series Split Phase AC-Coupled Retrofit Inverter GW11K4-SBP-US20
GoodWe 11.4kW SBP-US Series Split Phase AC-Coupled Retrofit Inverter GW11K4-SBP-US20
Regular price
$1,385
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GoodWe 11.4kW SBP-US Series Split Phase AC-Coupled Retrofit Inverter GW11K4-SBP-US20
GoodWe 11.4kW SBP-US Series Split Phase AC-Coupled Retrofit Inverter GW11K4-SBP-US20
Available
MPN No: GW11K4-SBP-US20
Regular price
$1,385
Expected ship date Sep 08 - 15
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We offer multiple secure payment options for your convenience
Regular price
$1,385
GoodWe 11.4kW SBP-US Series Split Phase AC-Coupled Retrofit Inverter GW11K4-SBP-US20
MPN No:
GW11K4-SBP-US20
Expected ship date Sep 08 - 15
GoodWe 11.4kW SBP-US Series Split Phase AC-coupled Retrofit Inverter GW11K4-SBP-US20
The GoodWe GW11K4-SBP-US20 SBP-US Series is an 11.4kW split-phase, high-voltage AC-coupled retrofit inverter designed for residential battery storage, backup power, and microgrid applications in North America.
Its AC-coupled architecture makes it particularly well suited for adding battery storage and backup functionality to an existing solar installation without replacing the existing PV inverter.
The SBP-US platform supports off-grid applications, unbalanced load output, and microgrid operation during blackouts.
Key Technology
-
11.4kW AC-Coupled Retrofit Inverter
Provides 11,400W nominal AC output for high-capacity residential battery storage, energy management, and backup applications. -
Ideal for Existing Solar Systems
The AC-coupled architecture makes the SBP-US Series well suited for retrofit installations where a PV system and solar inverter are already installed. -
High-Voltage Battery Integration
Supports lithium-ion batteries operating across an 80–495V battery voltage range, with a nominal battery voltage of 300V. -
11.4kW Battery Charging Power
Provides up to 11,400W maximum battery charging power with up to 50A maximum continuous charging current. -
11.97kW Battery Discharging Power
Supports up to 11,970W maximum battery discharge power with up to 50A maximum continuous discharging current. -
120/240V Split-Phase Backup
Provides 11,400VA nominal backup apparent power with 120/240V split-phase output for supported residential backup loads. -
17.28kVA Short-Duration Backup Output
Can provide up to 17,280VA for 10 seconds when sufficient PV and battery power are available, providing additional capacity for temporary startup and surge loads. -
Microgrid Operation During Blackouts
Designed to enable compatible PV systems to continue generating power to support load consumption while the utility grid is unavailable as part of a properly configured microgrid. -
Built-In Autotransformer
Supports unbalanced 120/240V load output without requiring an additional external autotransformer, helping reduce installation complexity and system hardware requirements. -
Generator Compatibility
Compatible with fossil-fuel generators to provide additional backup flexibility and help maintain a stable power supply during extended grid outages. -
24/7 Load Consumption Monitoring
Supports continuous load monitoring and multiple communication protocols for intelligent residential energy management. -
Optional EV Charger Integration
The SBP-US platform supports an optional EV charger function, allowing the compatible EV charging cable to connect directly to the inverter. -
97% Maximum Efficiency
Provides up to 97.0% maximum efficiency and 97.0% maximum battery-to-AC efficiency. -
Integrated Electrical Protection
Includes residual current monitoring, battery reverse-polarity protection, anti-islanding protection, AC overcurrent protection, AC short-circuit protection, AC overvoltage protection, Type III AC surge protection, and battery arc-fault detection. -
NEMA Type 4X Enclosure
Durable wall-mounted enclosure provides environmental protection for flexible residential installation.
Best Uses
-
Existing Solar System Battery Retrofits
Ideal for adding compatible high-voltage battery storage and energy management functionality to homes with an existing PV system. -
High-Capacity Residential Backup
Provides up to 11.4kVA nominal backup output for residential applications requiring greater backup capacity. -
Microgrid Applications
Designed to support PV generation and load consumption during blackouts when incorporated into a properly configured microgrid system. -
Solar Self-Consumption
Allows compatible battery storage to capture available energy and make it available later for household consumption. -
Generator-Integrated Energy Systems
Suitable for residential backup systems incorporating a compatible fossil-fuel generator for extended energy resilience. -
Storage + EV Charging Systems
Supports optional Level 2 EV charging for homes combining battery storage, backup power, intelligent energy management, and electric vehicle charging.
Product Specifications
| Specification | Details |
|---|---|
| Manufacturer | GoodWe |
| Series | SBP-US Series |
| Model / SKU | GW11K4-SBP-US20 |
| Inverter Type | Split-Phase AC-Coupled Retrofit Inverter (HV) |
| Battery Type | Lithium-Ion |
| Nominal Battery Voltage | 300 V |
| Battery Voltage Range | 80–495 V |
| Battery Start-Up Voltage | 80 V |
| Number of Battery Inputs | 1 |
| Maximum Continuous Charging Current | 50 A |
| Maximum Continuous Discharging Current | 50 A |
| Maximum Battery Charging Power | 11,400 W |
| Maximum Battery Discharging Power | 11,970 W |
| Nominal AC Output Power | 11,400 W |
| Nominal Apparent Power Output to Utility Grid | 11,400 VA |
| Maximum Apparent Power Output to Utility Grid | 11,400 VA |
| Maximum Apparent Power From Utility Grid | 11,400 VA |
| Maximum Apparent Power From Utility Grid Without EV Charger | 11,400 VA |
| Nominal AC Output Voltage | 240 V |
| AC Output Voltage Range | 211–264 V |
| Nominal AC Grid Frequency | 60 Hz |
| AC Grid Frequency Range | 58.5–61.2 Hz |
| Maximum AC Current Output to Utility Grid | 47.5 A |
| Maximum AC Current From Utility Grid | 47.5 A |
| Maximum AC Current From Utility Grid Without EV Charger | 47.5 A |
| Maximum AC Current From Utility Grid With EV Charger | 47.5 A |
| Power Factor | ~1, Adjustable from 0.8 Leading to 0.8 Lagging |
| Maximum Total Harmonic Distortion | <3% |
| Backup Nominal Apparent Power | 11,400 VA |
| Maximum Backup Apparent Power with Grid | 11,400 VA Continuous / 17,280 VA for 10 Seconds |
| Maximum Backup Apparent Power without Grid | 11,400 VA |
| Maximum Backup Output Current | 47.5 A |
| Backup Nominal Output Voltage | 240 / 120 V |
| Backup Nominal Output Frequency | 60 Hz |
| Backup Output THDv | <3% @ Linear Load |
| Maximum Efficiency | 97.0% |
| CEC Efficiency | 96.0% |
| Maximum Battery-to-AC Efficiency | 97.0% |
| Residual Current Monitoring | Integrated |
| Battery Reverse Polarity Protection | Integrated |
| Anti-Islanding Protection | Integrated |
| AC Overcurrent Protection | Integrated |
| AC Short-Circuit Protection | Integrated |
| AC Overvoltage Protection | Integrated |
| AC Surge Protection | Type III |
| Battery Arc-Fault Detection | Integrated |
| Operating Temperature Range | -31°F to 140°F (-35°C to 60°C) |
| Relative Humidity | 0–95% |
| Maximum Operating Altitude | 9,842 ft (3,000 m) |
| Cooling Method | Natural Convection |
| User Interface | LED, App |
| BMS Communication | RS485, CAN |
| Meter Communication | RS485 |
| Portal Communication | LAN (4G Optional) + Bluetooth + Wi-Fi |
| Noise Emission | <40 dB |
| Topology | Non-Isolated |
| Self-Consumption at Night | <20 W (No Backup Output) |
| Ingress Protection Rating | NEMA Type 4X |
| Mounting Method | Wall Mounted |
| Dimensions (W × H × D) | 19.1 × 35.4 × 7.5 in |
| Weight | 74.7 lb |
| Grid Interconnection | UL 1741 SB, California Rule 21, HECO Rule 14, IEEE 1547, IEEE 1547.1 |
| Safety Regulations | UL 1741, CSA 22.2 No. 107.1, UL 1998, UL 1699B |
| Electromagnetic Compatibility | FCC Part 15 Class B |
AC-Coupled Retrofit & Microgrid Capability
The GW11K4-SBP-US20 is designed as an AC-coupled retrofit solution for North American residential energy storage. The SBP-US Series supports off-grid applications and unbalanced output for load consumption without requiring an extra autotransformer. The platform is also designed for microgrid operation during blackouts, enabling a compatible PV system to generate power to support load consumption while the utility grid is unavailable.
Battery & Backup Performance
The GW11K4-SBP-US20 provides 11,400VA nominal backup apparent power at 120/240V with up to 47.5A output current. Maximum backup apparent power with the grid can reach 17,280VA for 10 seconds when sufficient PV and battery power are available, while maximum output without the grid is 11,400VA. Maximum inverter efficiency is 97.0%, with a CEC efficiency of 96.0%.
Microgrid Battery Note: Although the standard battery voltage range is 80–495V, GoodWe specifies that the maximum battery voltage is 450V for AC-coupled inverters in microgrid applications.
Integrated Protection & Communications
The GW11K4-SBP-US20 incorporates residual current monitoring, battery reverse-polarity protection, anti-islanding protection, AC overcurrent protection, AC short-circuit protection, AC overvoltage protection, Type III AC surge protection, and battery arc-fault detection. Communication options include RS485 and CAN for the BMS, RS485 for metering, and LAN, optional 4G, Bluetooth, and Wi-Fi for portal connectivity.
Optional EV Charging
The SBP-US Series supports an optional 9.6kW AC Level 2 EV charger with selectable maximum continuous output current of 16A, 24A, 32A, or 40A. Configuration and indication are handled through the app using Wi-Fi and Bluetooth, while the charging interface uses SAE J1772. The EV charger cable is 7.6 meters (approximately 24.9 ft) long and is ordered separately.
About GoodWe:
GoodWe develops solar inverters, energy storage systems, EV charging equipment, backup power solutions, and intelligent energy management technologies for residential and distributed energy applications. Its energy platforms are designed to integrate battery storage, backup power, monitoring, EV charging, and renewable generation into flexible home energy systems.
High-Capacity Battery Retrofit and Backup Energy Management
The GoodWe GW11K4-SBP-US20 combines 11.4kW AC output, 11.97kW maximum battery discharge power, high-voltage battery support, 120/240V split-phase backup, AC-coupled retrofit capability, microgrid operation, built-in autotransformer functionality, generator compatibility, and optional EV charging in a high-capacity residential energy storage inverter. It is particularly well suited for homeowners looking to add substantial battery storage and backup functionality to an existing solar installation.
Why Buy From US Solar Supplier
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Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.
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