80kw-261kwh commercial industrial energy storage system
80kW 261kWh Commercial & Industrial Energy Storage System PN-ESS-80/261
PN-ESS-80/261: 80kW 261kWh outdoor integrated C&I energy storage cabinet with 160kW PV access, liquid cooling and IP55 protection.
Specifications
- Usable Energy
- 261kWh
- Rated AC Output Power
- 80kW
- Max. PV Access Power
- 160kW
- Number of MPPTs
- 6
- Cooling Method
- Intelligent Liquid Cooling
- Dimensions
- 1100*2105*1400mm
Product Description
The PN-ESS-80/261 is an 80kW / 261kWh outdoor integrated commercial and industrial energy storage system from the Polynet C&I ESS Series of Polynet Solar Solutions (Hefei Polynet Products Co., Ltd.), designed for industrial parks and commercial complexes. Five 52.249kWh LiFePO4 (LFP) battery modules deliver 261kWh of usable energy in one IP55 floor-mounted cabinet with dual cooling (fan support and liquid conditioning), 160kW PV access and an aerosol firefighting system. The cabinet integrates EMS functions, explosion-proof construction, AC-side secondary surge protection with fault alarm, emergency shutdown and leakage current detection for energy-station security.
Product Features
Feature | Description |
Photovoltaic Access | 160kW maximum PV access power and 128kW maximum PV input through 6 MPPT trackers. |
261kWh Usable Energy | Five 52.249kWh LiFePO4 (LFP) battery modules with an 832V rated voltage. |
Dual Cooling Design | Fan support combined with liquid conditioning keeps the cabinet stable from -20℃ to +55℃. |
Multi-Layer Safety | Explosion-proof construction, aerosol fire protection, AC-side secondary surge protection with fault alarm, emergency shutdown and leakage current detection. |
Strong Load Adaptability | Supports 100% unbalanced loads and 110% long-term overload, with peak output of 1.5 times rated power for 10s. |
EMS Energy Strategies | Multiple EMS strategies with power-market trading support, LED and WLAN+App interface, RS485/CAN communication. |
BATTERY PARAMETERS | |
Usable Energy | 261kWh |
Cell Type | LFP (LiFePO4) |
Battery Module Capacity | 52.249kWh |
Number of Battery Modules | 5 |
Rated Voltage | 832V |
Maximum Charge/Discharge Current | 157A |
PV INPUT PARAMETERS | |
Max. PV Access Power | 160kW |
Max. PV Input Power | 128kW |
Max. PV Input Voltage | 1000V |
Start-up Voltage | 180V |
MPPT Voltage Range | 150~850V |
Rated PV Input Voltage | 650V |
Max. Operating PV Input Current | 36+36+36+36+36+36A |
Max. Input Short-Circuit Current | 54+54+54+54+54+54A |
No. of MPPT Trackers / Strings per Tracker | 6 (2 strings per tracker) |
AC INPUT / OUTPUT DATA | |
Rated AC Input / Output Active Power | 80kW |
Max. AC Input / Output Apparent Power | 80kVA |
Rated AC Input / Output Current | 121.3/115.9A |
Max. AC Input / Output Current | 121.3/115.9A |
Max. Continuous AC Passthrough (grid to load) | 200A |
Peak Power (off-grid) | 1.5 times of rated power for 10s |
Power Factor Adjustment Range | 0.8 leading to 0.8 lagging |
Rated Input / Output Voltage / Range | 220V/380V, 230V/400V (0.85Un-1.1) |
Rated Input / Output Grid Frequency / Range | 50/45-55Hz, 60/55-65Hz |
Grid Connection Form | 3L+N+PE |
Total Current Harmonic Distortion (THDi) | <3% (of nominal power) |
DC Injection Current | <0.5% In |
EFFICIENCY | |
Max. Efficiency | 97.60% |
Euro 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 Liquid Cooling |
Human-Machine Interface | LED, WLAN+App |
BMS Communication Method | RS485, CAN |
Communication Protocol | RS485 |
Communication Interface | CAN |
Weight | ~2590kg |
Dimensions (W x H x D) | 1100*2105*1400mm |
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 five 52.249kWh modules with an 832V 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 efficiency of 97.60% and euro efficiency of 95.00% keep conversion losses low, while 100% unbalanced load support and 110% long-term overload capability absorb demanding site loads. Continuous AC passthrough of 200A (grid to load) and peak output of 1.5 times rated power for 10s cover motor starting and short surges.
Applications
Industrial and commercial applications: industrial parks, commercial complexes, power-market trading and electrical load management. The EMS supports multiple energy strategies — site load management, self-consumption with on-site PV and commercial energy-storage deployment.
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-80/261?
The system stores 261kWh of usable energy in five 52.249kWh LiFePO4 (LFP) battery modules with an 832V rated voltage.
How does the cabinet handle heat?
The cabinet combines fan support with liquid conditioning (intelligent liquid cooling) and holds its operating range from -20℃ to +55℃ at altitudes up to 3000m.
Can the system work with solar panels?
Yes. Up to 160kW of PV can be connected (128kW maximum input power) through 6 MPPT trackers with a 150~850V MPPT voltage range.
What safety functions are built in?
Explosion-proof construction, aerosol fire protection, AC-side secondary surge protection with fault alarm, emergency shutdown, leakage current detection, plus full electrical protections from PV/battery reverse polarity to AC surge protection (Level 3).