poly solar panel 220w

Prostar PPS220W 24v waterproof poly solar panel 220w for home use

Solar Panel 220Wp | 24Vdc | Polycrystalline | 5BB | Dimension: 990x1320x35mm

SKU: PPS220W Category:

Prostar PPS220W 24v waterproof poly solar panel 220w for home use (sometimes called polycrystalline solar panels) is made from polycrystalline solar cells, but polycrystalline solar cells are cheaper to make than monocrystalline cells. To make a polycrystalline ingot, you simply melt a load of silicon and then pour the molten liquid into a big box where it solidifies. This is a lot simpler than growing a monocrystalline ingot on a multi million dollar crystal growth machine from a tiny seed over days or weeks until you have a beautiful shiny cylinder made of a single crystal of silicon!

Polycrystalline solar panels are also made from silicon. However, instead of using a single crystal of silicon, manufacturers melt many fragments of silicon together to form the wafers for the panel. Polycrystalline photovoltaic cell poly solar panel 220w is also referred to as “multi-crystalline,” or many-crystal silicon. Because there are many crystals in each cell, there is to less freedom for the electrons to move. As a result, polycrystalline solar panels have lower efficiency ratings than monocrystalline panels.

poly solar panel 220w

The only real differences between a mono and polycrystalline solar cell are:

1) Polycrystalline solar cells are perfectly square;
2) Polycrystalline solar cells have grain boundaries (clearly visible) which slightly reduce the solar efficiency by making it a bit harder for the electrons to flow.

So does mean multicrystalline photovoltaic cell poly solar panel 220w is priceinferior to monocrystalline? Not really, because the multicrystalline cells’ square shape means that when they are laid up into the panel, there is no wasted space. This makes the efficiency of a typical polycrystalline solar panel almost identical to a typical monocrystalline module these days.

Polycrystalline cells were previously thought to be inferior to Monocrystalline because they were slightly less efficient, however, because of the cheaper method by which they can be produced coupled with only slightly lower efficiencies they have become the dominant technology on the residential solar panels market.

  Product Features & Benefits  

1. Higher energy yield:
– Outstanding performance at low irradiance
– Maximum energy yield at low NOCT(dirty effect)
– Improved energy production through reduced cell series resistance
– IP67 junction box available long-term weather endurance

2. Increased system reliability:
– Enhanced system performance stability with PID resistant technology
– Tempered 3.2 mm safety glass for optimal mechanical stability and transparency
– Enhanced system reliability in extreme temperature environment with special cell level stress release technology
– Great for solar street light or off-grid applications from marine-related to dry camping

3. Extra value to customers:
– Positive power tolerance up to 5w
– No hot-spot heating guaranteed
– Salt mist, ammonia and blowing sand resistance apply
– To seaside, farm and desert environment
– 25 years linear performance warranty

  Product Details  

 

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    ModelPPS220W
    Electrical Data
    Maximum Power (Pmax)220Wp
     Maximum Power Voltage (Vmp)36.0V
    Maximum Power Current (Imp)6.12A
    Open Circuit Voltage (Voc)45.0V
    Short Circuit Current (Isc)6.61A
    Power Tolerance(Positive)5%
    Module Efficiency STC16.84%
    Operating Temperature Range-40°C to +85°C
    Maximum System Voltage1000VDC (IEC)
    Series Fuse Rating15A
    Temperature Coefficient of Pmax-0.40%/°C
    Temperature Coefficient of Voc-0.30%/°C
    Temperature Coefficient of Isc0.05%/°C
    Nominal Operating Cell Temperature(NOCT)45±2°C
    Application ClassClass A
    Mechanical Characteristics
    Cell TypePolycrystalline 156
    Cell Number72 (6×12)
    Dimensions (mm)990x1320x35
    Weight(Kgs)13.50(approx)
    Front Glass3.2 mm, High Transmission, Low Iron,Tempered Glass
    Frame TypeAnodized Aluminium Alloy
    Junction Box Protection ClassIP 67 Rated
    Connector TypeMC4
    Output CablesTUV 1×4.0 mm², Length:900 mm
    Standard Test Conditions (STC): Irradiance 1000W/m2, AM 1.5, Cell temperature 25°C

    Nominal Operating Cell Temperature (NOCT): Irradiance  800W/m2, AM 1.5, Wind Speed 1m/s, Ambient temperature 20°C