Microgrids with PV, storage and EV charging integrated for public parking house, highway service rest center, petrol station areas etc. , which enhances your EV charging power with PV and storage during peak demand time(holidays etc.), realizes peak sharving or maximum self-use during off-peak time.

Commercial PV+Storage+ DC Fast Charging Stations


Technical Specifications

System Configuration

  • PV module
    480 pcs*540W Tier 1 Mono PV module
  • PV inverter
    5 units*50kW 3-phase string PV inverter
  • Mounting system
    1 set* 250kWp flat and concrete rooftop mounting system
  • Battery inverter
    1 unit*500kW isolated battery inverter
  • Battery packs
    6 units*175kWh battery rack with BMS+MBMS
  • EMS
    1 unit*Energy Management System
  • EV Charger
    8 units*120kW DC charger
  • Optional LV switchgear
    1 *1000kVA off-grid Switchgear Cabinet
  • Container
    1 unit* 20ft container
  • Fire extinguisher
    1 set* FM200 gas fire extinguisher system for 20ft container
  • Air conditioner
    1 set*5kW air conditioning and ventilation cooling system
  • Power distribution system
    1 set* 500kVA AC distribution cabinet
  • Auxiliary system
    2 units*3-phase energy meter
  • Accessories
    1 set* Auxilary system and accessories( power supply, lights, meters, video monitor, earthing, AC&DC cables, connectors etc.)
  • HV Transformer OPTIONAL
    1 unit*S7-1000/10 1000kVA prefabricated transformer cabinet
  • Cloud platform OPTIONAL
    1 unit* cloud platform account

Scenario & Priority

  • Installation site
    Flat and concrete rooftop of commercial building
  • Max. building height
    ≤20 m
  • Snow load
    PV module: 5400-7200pa upon request; mounting system: ≤2.4 kN/m2
  • Wind load
    PV module: 2400Pa; mounting system:≤60 m/s

PV Side

  • MPPT number/ max. input strings number
  • PV module number
  • PV array voltage at peak power
  • Peak input power
  • MPPT voltage range
    PV Inverter: 300-1000V; PV module: 41.50Vmpp max.;PV array: 498V
  • Open circuit voltage-Voc
    PV module: 49.8V; PV array: 598V
  • Max. input current
    Inverter: 165A; PV module: 13.02A Impp;PV array: 4*2*13.02A
  • Max. short circuit current
    Inverter: 165A; PV module:13.77A; PV array: 4*2*13.77A

Battery Storage

  • Storage capacity
  • Battery voltage
    729.6V (638.4~820.8V), 38.4 V*N(N=19)
  • Nominal charging/discharging current
    6*120A/6*120A max.; 6*60A/6*60A rated
  • Nominal battery output power
    262kW nominal; 525kW max.
  • Battery chemistry
  • DoD
  • Lifespan
    ≥4000 times @0.5C, 80%DoD,80%EOL

EV Charging

  • Charging connector I
  • Output voltage I
    500V rated, 150~750 Vdc
  • Output current I
  • Charging power I
  • Charging connector II
    Type 2 cable
  • Output voltage II
  • Output current II
  • Charging power II
  • Charging connector III
  • Output voltage III
    750V rated, 150~1000 Vdc
  • Output current III
  • Charging power III
  • User interface
    Activation: RFID card; Display: LED indicator(G/Y/R)/ 7''TFT touch screen

AC Side Grid-tied

  • AC output power
  • Grid voltage

AC Side Off-grid

  • Backup power
    500kW; overload capability: 110% for long term operation
  • Dynamic voltage stability and recovery time
    5%&40 ms
  • Nominal backup time

General System Specs

  • Max. efficiency
    Max. system efficiency: 91%; Inverter MPPT efficiency: 99%; battery inverter charging/discharging efficiency:97.6% battery round trip efficiency: 96%; max. PV module efficiency:21.13%;Charger:>94.0%
  • Communication
    PV inverter: RS485, optional: Wi-Fi, GPRS; Battery inverter:CAN ,RS232/RS485 (standard), Ethernet, GPRS optional; Battery: CAN/RS485/Ethernet;Charger:WiFi,Ethernet, supporting OCPP1.6Json(OCPP2.0 optional)
  • Operating temperature
    PV array: -40°C to +85°C; PV inverter:-25~60℃; Battery inverter:-25℃ ~+55℃; Battery:-10~+55℃; Charger:-20 ~ +70°C(power derating above 45°C, temperature coefficient is 5%/°C)
  • Certifications
    PV module: IEC 61215 61730 PID certificates; Mounting system: designed according to Japan JIS standards. TÜV certified and MCS accredited; PV inverter: EN62109-1, EN62109-2, EN 61000-6-4,UTE C15-712-1, IEC61727, IEC62116; Battery inverter: GB/T 34120-2017, IEC62477-1, DIN EN 62477-1:2012/A1:2017,EN61000-6-2:2005, EN61000-6-4: 2007/A1:2011, VDE-AR-N4110:2018-11; Battery: UL1973/IEC62619/GB36276/UN38.3/ MSDS; Charger: CE, EN61000-6-3/EN61000-6-1 Class A ; EN 61851-1-2001/EN 61851-21-2001/EN 61851-22-2001
  • Warranty
    PV modules: 12 years material and workmanship warranty, 30 years linear output warranty;Mounting system: ≥10 years; PV/Battery Inverter: 5 years standard warranty; Battery: 5 years battery warranty; Charger: 2 years
  • Enclousures
    PV array: outdoor installation; PV Inverter: IP65; Battery inverter: IP20; Battery rack: IP20;Charger:IP65,K10
  • Dimensions (W*H*D)
    PV module: 1133*2256*35 mm; PV inverter: 600*860*294 mm; Battery inverter: 1400*1950*1000 mm; Battery rack:1046*2100*674 mm; Battery module: 465*186*672mm;120kW charger: 700*1750*700 mm
  • Weight
    PV module: 33.5kg; PV inverter: 65kg; Battery inverter: 2050kg; Battery system:175kWh ~2000kg; 120kW charger: 238kg(150 +11*N,N=8)
  • Packaging
    PV modules- qty. per pallet: 30pcs; qty. per 40ft HQ container: 600pcs; PV inverters- qty per pallet: 4 pcs; qty. per 20ft container: 84 pcs; qty. per 40ft container: 168 pcs; Battery inverters- qty. per pallet:10 pcs; qty. per 20ft container:110 pcs,11 pallets; qty. per 40ft container: 230 pcs,23 pallets; qty. per 40ft HQ container: 276 pcs; Batteries- qty. per pallet: 10pcs of battery modules; qty. per 20ft HQ continer: 10 units of battery cabinets, or 9~11 pallets of battery modules; qty. per 40ft HQ container: 20 units of battery cabinets, or 20~23 pallets of battery modules; Chargers-packaged size ~950*1950*950 mm; gross weight:280kg
Key Components
120kW DC Fast charger
  • TÜV certified according to EN/IEC61851
  • CCS type1/ type2/ CHAdeMO, AC Type 2 support
  • OCCP 1.6 J support
  • Power and output voltage adjustable
  • RFID authorization and Mobile App payment support
  • IP65 design
Key Components
500kW Battery Inverter
  • Safer. Completely isolation of batteries from the power grid
  • Advanced islanding detection technology
  • Reactive power compensation function
  • On/off grid switching time: general<200ms; under specific conditions (externally connected with SCR) within 20ms
  • Peak, off-peak and shoulder times' electricity price setting for price arbitrage
Key Components
540W Tier 1 Bifacial Double Glass PV Modules
  • Tier 1. ZNShine Solar is a BNEF Tier1 module manufacturer with over 32 years of manufacturing excellence and 6 GW module production capacity
  • Anti PID. Limited power degradation caused by PID effect is guaranteed under the strict testing condition for mass production
  • 12 years product guarantee and 30 years output guarantee
  • 0.5% annual degradation after the first yearMore power output in weak light condition, such as haze, cloudy and early morning
Key Components
175kWh HV Battery Rack
  • Modular design and capacity scalableFlexible voltage range from 200V to 1000Vdc
  • Three layer management system design to ensure high reliability
  • Rack mounted or container installation are both feasible
  • With advanced LiFePO4 battery technology, over 4000 times lifecycles at 0.5C, 80%EOL
Key Components
Ballasted System for Flat Roofs 250kWp
  • Completely innovative, unilateral elevation system with less components and lower ballast
  • Equipped with pre-assembled components, 40% less installation time so that a team of 4 workers can install 50kW per day
  • Orientation changes from south-east to south-west, with similar yield performance
  • 10°, 12° or 15° elevation angle options available
  • Foldable triangles, less transportation space
  • Aerodynamically optimized with wind breaker on reverse enabling minimal ballasted weight
Key Components
3-phase Energy Meter
  • Accurate. 0.5 class measurement precision level
  • 3-phase cost-effective meter
  • Easy to install. 35mm din rail mounted
  • High reliability, 5 years’ warranty optional
Key Components
OPTIONAL STS-100K~1000K On/Off-grid Switching Cabinet
  • Quickly separate the system from the power grid (switching time < 10ms)
  • No need for additional configuration of microgrid system controls, reducing additional investment
  • With manual control mode, operation control necessary for various experiments and switching control failures
  • There are two switching speed options (< 10ms and < 200ms)
  • With cooling system with Kehua's proprietary technology ensures the reliability of the system in various applications
Key Components
50kW Three-phase On-grid String PV Inverter
  • High efficiency. With design of 4 MPPT/12 strings, 3-level topology, maximum efficiency up to 99%
  • Safe and reliable.Outdoor IP65 design, no derating below 3000m altitude; all industrial grade electronic device, ensure 25 years full life circle running
  • Intelligent management.Intelligent online upgrade function, easy to upgrade and maintain
Key Components
Distributed Energy Monitoring and Management System
  • Safe and Reliable.7x24 hours uninterrupted monitoring
  • Flexible.Compatible with multiple communication interfaces and protocols to meet the needs of multiple scenarios;push alarms and faults in time to improve work efficiency
  • Efficient.Quickly locate abnormal strings and faulty devices to improve the efficiency of operation and maintenance
  • Intelligent.Equipment type, personnel cost, financing risk assessment
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