Project Equipment –
Materials Used For This Project

Inverter

We will be using Solis Three PV Inverter (50K) for this project. The features are as follows.

• Three phase output
• Max. efficiency 99%, EU efficiency 98.5%
• High precise, high speed MPPT algorithm
• Four MPPT input, each rated current is 28.5A, compatible with high power module
• Compact and light design for two-person easy installation
• IP65, visually pleasing for domestic environment
• THDi < 3%, low harmonic distortion against grid
• Anti-resonance, single transformer can connect 6M+ in parallel
• Perfect commercial site monitoring solution
• Intelligent redundant fan-cooling

Inverter Datasheet

• Model – Solis-40K-HV
  • Energy Source – PV
• Input Side (DC)
  • Max. DC input power(kW) – 55
  • Max. DC input voltage(V) – 1100
  • Start-up voltage(V) – 200
  • MPPT voltage range(V) – 200-1000
  • Max. input current(A) – 28.5A+28.5A+28.5A+28.5A
  • MPPT number / Max input strings number – 4/12
• Output Side (AC)
  • Rated output power(kW) – 50
  • Max. apparent output power(kVA) – 55
  • Max. output power(kW) – 55
  • Rated grid voltage(V) – 400
  • Grid voltage range – 304-460
  • Rated grid frequency(Hz) – 50/60
  • Operation phase – Three
  • Rated grid output current(A) – 72.2
  • Max. output current(A) – 83.3
  • Power Factor(at rated output power) – 0.8…1…0.8
  • THDi(at rated output power) – <3%
  • DC injection current(mA) – <50
  • Grid frequency range(Hz) – 47-52 or 57-62
• Efficiency
  • Max. efficiency – 98.8%
  • EU efficiency – 98.4%/98.4%
  • MPPT efficiency – 99.9%
• Protection
  • DC reverse-polarity protection – Yes
  • Short circuit protection – Yes
  • Output over current protection – Yes
  • Output over voltage protection – Yes
  • Insulation resistance monitoring – Yes
  • Residual current detection – Yes
  • Surge protection – Yes
  • Islanding protection – Yes
  • Temperature protection – Yes
  • Integrated DC switch – Optional
• General Data
  • Dimensions(mm) -630W*700H*357D (mm)
  • Weight(kg) – 63
  • Topology – Transformerless
  • Self consumption (night) – <1W(Night)
  • Operating ambient temperature range – -25~60°C
  • Ingress protection – IP65
  • Noise emission{typical} – <60 dBA
  • Cooling concept – Intelligent redundant fan-cooling
  • Max. operation altitude – 4000m
  • Designed lifetime – >20years
  • Grid connection standard – EN50438, G59/3, AS4777, VDE0126-1-1, IEC61727
  • Relative humidity – 0~100%
  • Safty/EMC standard – IEC62109-1/-2, AS3100, EN61000-6-1, EN61000-6-3
• Features
  • DC connection – MC-4mateable
  • AC connection – OT Terminal connectors
  • Display – LCD, 2 x 20 Z
  • Communication connections – 4 pins RS485 connector, 2 RJ45 connector, 2 group of terminal black
  • Warranty – 5 years standard (extend to 20 years)

Module

We will be using Stave™ II 330W 5BB-Polycrystalline PV Module for this project. The features are as follows.

• Output Positive Tolerance
  • Guaranteed 0~+5W positive tolerance ensures power output reliability
• Innovational 5-BusBar Cells
  • Reduces the cell series resistance and internal stress, decreases the risk of micro-crack and improves the module output
• Innovative Perc Cell Technology
  • Excellent cell efficiency and output
• Excellent Mechanical Load Capability
  • Certified to withstand snow load (6000 Pa)and wind load (3600 Pa)
• Higher Reliability and Durability
  • Effectively deals with harsh environments, such as sand, salt mist and ammonia resistance
• Passed Hail Test
  • Certified to hail resistance, ice ball size (d=45mm)and ice ball velocity (v=30.7m/s)
• PID Resistance
  • Excellent PID resistance at 96 hours (@85°C/85%) test, and also can be improved to meet higher standards for the particularly harsh environment

 Module Datasheet

• Electrical Specifications
  • STC rated output (Pmpp)* – 330 Wp
  • Rated voltage (Vmmp) at STC – 37.15 V
  • Rated current (Immp) at STC – 8.89 A
  • Open circuit voltage (Voc) at STC – 45.86 V
  • Short circuit current (Isc) at STC – 9.52 A
  • Module Efficiency – 17.1 %
  • Rated output (Pmpp) at NOCT – 230.4 Wp
  • Rated voltage (Vmpp) at NOCT – 33.92 V
  • Rated current (Impp) at NOCT – 6.79 A
  • Open circuit voltage (Voc) at NOCT – 42.08 V
  • Short circuit voltage (Isc) at NOCT – 7.37 A
  • Temperature coefficient(Pmpp) – -0.408%/°C
  • Temperature coefficient (Isc) – +0.50%/°C
  • Temperature coefficient (Voc) – -0.311%/°C
  • Normal operating cell temperature (NOCT) – 46±2°C
  • Maximum system voltage (IEC/UL) – 1000VDC or 1500VDC
  • Number 0f diodes – 3
  • Junction box IP rating – IP 67
  • Maximum series fuse rating – 15 A
• Mechanical Specifications
  • Outer dimensions (L x W x H) – 1954 x 990 x 40 mm / 76.93 x 38.98 x 1.57 in
  • Frame technology – Aluminium, silver anodized
  • Module composition – Glass / EVA / Backsheet (white)
  • Front glass thickness – 3.2 mm / 0.13 in
  • Cable length (IEC / UL) – 1150 mm / 45.28 in
  • Cable diameter (IEC/UL) – 4 mm² / 12 AWG
  • Maximum mechanical test load – 6000 Pa
  • Fire performance (IEC/UL) – Class C (IEC) or Type 1 (UL)
  • Connector type (IEC/UL) – MC4 compatible
• Packing Specifications
  • Weight (module only) – 21.8 kg / 48.06 lbs
  • Packing unit – 27 pcs / box
  • Weight of packing unit (for 40’HQ container) – 646 kg / 1424 lbs
  • Number of modules per 40’HQ container – 648 pcs

Module Dimension Details