50kw-112kwh commercial industrial energy storage system
50kW 112kWh Commercial & Industrial Energy Storage System PN-ESS-50/112
PN-ESS-50/112: 50kW 112kWh outdoor integrated C&I energy storage cabinet with 100kW PV access, intelligent air cooling and IP55 protection.
Specifications
- Usable Energy
- 112kWh
- Rated AC Output Power
- 50kW
- Max. PV Input Power
- 100kW
- Number of MPPTs
- 4
- Cooling Method
- Intelligent Air Cooling
- Dimensions
- 804*1184*2179mm
Product Description
The PN-ESS-50/112 is a 50kW / 112kWh outdoor integrated commercial and industrial energy storage system from the Polynet C&I ESS Series of Polynet Solar Solutions (Hefei Polynet Products Co., Ltd.). Seven 16.076kWh LiFePO4 (LFP) battery modules deliver 112kWh of usable energy in one IP55 floor-mounted cabinet with intelligent air cooling, 100kW PV access through 4 MPPTs and an aerosol firefighting system. The integrated PCS supports grid-tied and off-grid output, 100% unbalanced loads and 110% long-term overload.
Product Features
Feature | Description |
Photovoltaic Access | 100kW maximum PV input power through 4 MPPTs with 2 strings each, starting up at 180V. |
112kWh Usable Energy | Seven 16.076kWh LiFePO4 (LFP) battery modules with a 358.4V rated voltage. |
Integrated Outdoor Cabinet | IP55 protection, aerosol firefighting system and floor-mounted installation for outdoor deployment. |
Strong Load Adaptability | Supports 100% unbalanced loads and 110% long-term overload, with adjustable output power and configurable charge/discharge. |
Off-Grid Capability | Continuous output of 1.6 times rated power for 2s — grid-tied and off-grid output in one cabinet. |
Remote Management | LED, WLAN+App human-machine interface with RS485/CAN communication for remote monitoring and upgrades. |
BATTERY PARAMETERS | |
Usable Energy | 112kWh |
Cell Type | LFP (LiFePO4) |
Battery Module Capacity | 16.076kWh |
Number of Battery Modules | 7 |
Rated Voltage | 358.4V |
Maximum Charge/Discharge Current | 157A |
PV INPUT PARAMETERS | |
Maximum Input Power | 100kW |
Maximum Input Voltage | 1000V |
MPPT Voltage Range | 150~850V |
Startup Voltage | 180V |
Rated Input Voltage | 600V |
Maximum Input Current per MPPT | 40A |
Maximum Short-Circuit Current per MPPT | 60A |
Number of MPPTs | 4 |
Number of Strings per MPPT | 2 |
GRID-TIED OUTPUT PARAMETERS | |
Rated Output Power | 50kW |
Rated Output Apparent Power | 50kVA |
Rated Output Voltage | 3/N/PE, 220V/380V, 230V/400V |
Output Voltage Frequency | 50/60Hz |
Rated Output Current | 76/72.2A |
Maximum Bypass Current | 152/144.4A |
Power Factor | >0.99 (0.8 leading to 0.8 lagging) |
Total Current Harmonic Distortion | <3% |
OFF-GRID OUTPUT PARAMETERS | |
Rated Output Power | 50kW |
Maximum Off-Grid Apparent Power | Continuous output of 1.6 times rated power for 2s |
Rated Output Voltage | 3/N/PE, 220V/380V, 230V/400V |
Rated Output Voltage Frequency | 50/60Hz |
Total Voltage Harmonic Distortion (@ linear load) | <2% |
EFFICIENCY | |
Maximum PCS Efficiency | 97.80% |
System Efficiency | 95.00% |
PROTECTION | |
PV Reverse Polarity Protection | Integrated |
Residual Current Monitoring | Integrated |
Battery Reverse Polarity Protection | Integrated |
Anti-Islanding Protection | Integrated |
AC Overcurrent Protection | Integrated |
AC Short Circuit Protection | Integrated |
DC Switch | Integrated |
DC Surge Protection | Level 2 |
AC Surge Protection | Level 3 |
BASIC PARAMETERS | |
Operating Temperature Range | -20~+55℃ |
Relative Humidity | 0~95% |
Maximum Operating Altitude | 3000m |
Cooling Method | Intelligent Air Cooling |
Human-Machine Interface | LED, WLAN+App |
BMS Communication Method | RS485, CAN |
Communication Protocol | RS485 |
Communication Interface | CAN |
Weight | ~1530kg |
Dimensions (W x H x D) | 804*1184*2179mm |
Topology | Non-Isolated |
Protection Level | IP55 |
Firefighting System | Aerosol |
Installation Method | Floor-mounted |
PAYMENT & DELIVERY | |
T/T — EXW / FOB | 30% T/T in advance, with the balance paid before shipment |
T/T — CFR(C&F) / CIF | 30% T/T in advance, with the balance paid against copy of B/L |
L/C | L/C at sight for amounts above 50,000 USD |
Western Union | For amounts lower than 5,000 USD |
Delivery Time | 7~20 days after receiving payment for one container |
Battery System & Safety
The battery system uses LiFePO4 (LFP) cells in seven 16.076kWh modules with a 358.4V rated voltage and a maximum charge/discharge current of 157A. Safety functions include PV/battery reverse polarity protection, residual current monitoring, anti-islanding, AC overcurrent and short-circuit protection, an integrated DC switch, DC surge protection (Level 2), AC surge protection (Level 3) and an aerosol firefighting system.
Key Advantages
A maximum PCS efficiency of 97.80% and a system efficiency of 95.00% keep conversion losses low, while 100% unbalanced load support and 110% long-term overload capability absorb demanding site loads. PV access up to 100kW lets one cabinet pair with on-site solar.
Applications
Industrial and commercial applications: factory self-consumption with rooftop PV, electrical load management in industrial parks, commercial complexes and demand-charge control. The cabinet supports configurable charge/discharge power and energy management strategies for each site.
Contact Us
Hefei Polynet Products Co., Ltd. — Polynet Solar Solutions
Email: sales1@polynetpv.com
Website: www.polynetpv.com
Frequently Asked Questions
What is the usable energy of the PN-ESS-50/112?
The system stores 112kWh of usable energy in seven 16.076kWh LiFePO4 (LFP) battery modules with a 358.4V rated voltage.
Can the system work with solar panels?
Yes. The integrated PCS accepts up to 100kW of PV input through 4 MPPTs with a 150~850V MPPT voltage range, so the cabinet can be deployed as a PV storage system.
How are several systems expanded?
The modular design supports flexible expansion, and the final configuration follows the confirmed technical agreement.
What protection does the cabinet include?
The IP55 outdoor cabinet integrates PV/battery reverse polarity protection, anti-islanding, AC overcurrent and short-circuit protection, DC surge protection (Level 2), AC surge protection (Level 3) and an aerosol firefighting system.