20.88kWh Wall-Mounted ESS with LFP Battery and 20ms Grid Transfer
This all-in-one wall-mounted home energy storage system serves as a complete energy hub, scaling from 20.88kWh capacity. It integrates both inverter and PV input capabilities, optimizing solar self-consumption for residential applications. The system provides reliable power security for villas and home offices, with rapid 20ms switchover to backup power during grid failures.
Key Features
- Cost-Effective & Durable: Utilizes Lithium Iron Phosphate (LiFePO4) technology with cycle life up to 6000 cycles, supporting daily use for over 15 years while reducing long-term operational costs.
- Single MPPT PV Input: Supports up to 5kW PV input with MPPT range of 150-500V, compatible with most photovoltaic modules.
- Adjustable Power Factor: Power factor adjustable from 0.8 leading to 0.8 lagging for compatibility with various grid requirements.
- High Efficiency & Low THDi: Output THDi <3% ensures high power quality, safe for sensitive electronic equipment.
- Fast Grid Transfer: 20ms grid transfer time ensures uninterrupted operation of critical appliances.
- Smart Communication: Supports CAN/RS485 communication for integration with energy management systems, enabling remote monitoring and O&M to improve management efficiency.
- Modern Design: Wall-mounted design saves floor space and simplifies cleaning.
Technical Specifications
Battery Data
| Model |
W5-20K |
| Cell Chemistry |
LFP/102Ah |
| Rated Energy |
20.88kWh |
| Pack Configuration |
4P16S |
| Rated Voltage |
51.2V |
| Operating Voltage Range |
44.8-57.6VDC |
PV Input
| Max. PV Input Power |
5,000W |
| Max. PV Input Voltage |
500V |
| MPPT Voltage Range |
150-500V |
| Start-up Voltage |
370V |
| Number of MPPTs |
1 |
| Max. PV Input Current per MPPT |
60A |
AC Input & Output
| Rated Input/Output Power |
5,000W |
| Rated Input/Output Voltage |
220V/230V/240V (Adjustable) |
| Rated AC Frequency |
50/60Hz |
| Max. Output Current |
22A |
| Total Harmonic Distortion (THDi) |
<3% |
| Power Factor |
0.8 Leading to 0.8 Lagging |
| Grid Transfer Time |
20ms |
| Grid Connection |
Single Phase |
General Data
| Dimensions (W×D×H) |
600×163×1,705 mm |
| Weight |
202.4 kg |
| Altitude |
4,000m (Derating above 1,000m) |
| Display |
LCD Display |
| Safety Protection |
High/Under Voltage Protection, Short Circuit Protection, Overload Protection |
| BMS Communication |
CAN/RS485 |
| IP Rating |
IP21 |
| Operating Temperature |
-15~60℃ (Battery: 0~40℃) |
| Relative Humidity |
20%~95% (No Condensing) |
| Cycle Life |
6,000 Cycles |
| Installation Method |
Wall-Mounted |
| Certifications |
CE, RoHS, UN38.3 |