A complete review of Jinko Tiger Neo 630-watt solar panel

The Jinko Tiger Neo N-type 78 HL4 630-watt solar panel will produce 630-watt under standard test conditions (STC).

When

• Solar Irradiance = 1000 W/m² (46.02 volts x 13.69 amp)
• Cell Temperature = 25 degrees
• Air mass index = 1.5
• Wind speed = 1 m/s

The same solar panel will produce 474 watts under NOCT (Nominal operating cell temperature)

When

• Solar Irradiance = 800 W/m²
• Ambient Temperature = 20 degrees
• Air mass index = 1.5
• Wind speed = 1 m/s

Efficiency

Jinko Tiger Neo N-type 78 HL4 630-watt solar panel has an efficiency of 22.54%.

What does it mean?

It means that it is capable of converting 22.54% of sunlight into electricity when the sunlight intensity is 1000 W/m².

Efficiency (%) = {(Pmax per m²)/ (sunlight intensity per m²)} x 100%

The dimensions of the Tiger Neo N-type 78 HL4 630-watt solar panel are

2465 mm (L) x 1134 mm (B) x 35 mm (H)

Or

2.465 x 1.134 m x 0.035 m

We need only length and breadth to get the area.

So, the area is 2.465 m x 1.134 m

= 2.795 m²

And

Efficiency (%) = (Pmax per unit area)/ (Sunlight intensity per unit area) x 100%

(We take sunlight intensity under standard test conditions which is 1000 W/m²).

Putting all the values in the above formula, we get

Efficiency (%) = (630 watts/2.795 m²)/ (1000 watts/ m²) x 100%

= 22.54%

Efficient solar panels occupy less area than less efficient solar panels with the same power rating.

Or

In other words, the less efficient solar panels occupy more area with the same power rating.

For example, I have a solar panel of 630 watts and its cross-section area is 3 m².

Its efficiency would be:

Efficiency (%) = (630 watts/3 m²)/1000 watts/ m²) x 100%

= 21%.

The efficiency of the solar panels depends on the quality of the solar cells used, how effectively these are connected, and the type of encapsulated glass used.

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The technology of the Jinko Tiger Neo 630-watt solar panel

Jinko is using the latest top Con technology for its Tiger Neo N-type 78 HL4 630-watts solar panel.

Its N-type Mono-facial solar panels have better resistance toward the LID (light-induced degradation) effect.

LID resistant

Let me give a brief of the LID effect.

When solar panels are exposed to sunlight for the first time.

Their performance reduces.

And this power loss is at the maximum rate.

They lose up to 3% to 4% of their Pmax within the first few hours of their exposure to sunlight.

The amount of degradation is dependent on the quality of the wafer.

This effect is called Light Induced Degradation.

But why did this happens?

Because of the formation of the Boron-oxygen complex compound.

The oxygen is trapped in the silicon during manufacturing.

This trapped oxygen further creates a complex compound with Boron (A kind of dopant used in P-type semiconductors).

This complex compound in the presence of sunlight restricts the electrons from creating a photo-voltaic effect.

Hence the performance of solar panels is reduced.

Although it is an uncontrolled phenomenon it can be reduced by using the N-type semiconductor which uses Phosphorous as a dopant (instead of Boron).

And Tiger Neo N-type 78 HL4 630-watts solar panel uses N-type solar cell technology.

That makes it degrade as low as 1% of its Pmax upon its first exposure to sunlight.

In this way, Neo Series solar panel reduces the LID effect in its series.

PID resistant

This defect is developed due to the potential difference between the encapsulated solar cells and the glass or the frame which is connected to the ground.

We want all the current that the solar cells in a solar panel generates goes into our electrical appliances. But this potential difference causes some current to flow from silicon cells towards the glass.

Hence there is a loss of useful current due to this defect.

And

This defect increases when we connect so many solar panels together to make a string.

Also, humidity and high temperature accelerate this PID effect.

Do you know?
You cannot detect the PID effect with your naked eyes.
And it can eat up to 30% of Pmax with time.

Jinko Tiger Neo N-type 78 HL4 630-watt solar panel gives an excellent anti-PID performance guarantee. You can use it for big system sizes having large system voltage.

SMBB technology

Jinko’s latest SMBB technology helps in the better current collection and improves the efficiency of the solar cell.

Multi-bus bars are strips of copper or aluminum that connect the silicon cells together. These strips reduce the current path and hence minimize the heat-related losses.

Half-cut solar cell technology

Jinko uses 156 (2 x 78) half-cut solar cells for its Tiger Neo N-type 78 HL4 630 watts solar panel.

Half-cut solar cells based solar panels have an advantage over other panels.

They are more tolerant of shading loss. The heat losses are minimized and their structural strength improves too.

Warranty of Jinko Tiger Neo 630-watt solar panel

You get to see two types of warranties on a solar panel.

One is the performance warranty which tells the user about its output power over a period of time.

Jinko Tiger Neo N-type 78 HL4 630-watt solar panel offers 30 years linear power warranty.

What does it mean?

It means that in the first year, the Pmax (630 watts) will reduce by 1%, and thereafter the annual power degradation would be 0.4% over 30 years. Let me show you graphically:

And another is the product warranty which assures the user to repair or replace the product if any defect (such as cell cracking, diode burning, premature wear and tear) is found within the specified time.

Jinko offers a 12-year product warranty on its Tiger Neo N-type 78 HL4 630 watts solar panel.

Strength of Jinko Tiger Neo 630-watt solar panel

Where do we install solar panels?

Obviously, outside or on the roof of our house.

Solar panels face severe weather conditions throughout their lives.

A weak solar panel will break down too early.

While a strong one can withstand these severe conditions.

The strength of any solar panel is decided by its wind load and snow load ratings.

The higher are these values, the stronger the solar panels.

Tiger Neo N-type 78 HL4 630 watts solar panel has a wind load rating of 2400 Pascals and snow load rating of 5400 Pascals.

The temperature coefficient of power

Remember, with the increase in the solar cell temperature beyond 25 ᴼC, the power output of a solar panel decreases.

How much power it will lose depends on the value of its temperature coefficient of power.

The lower the value, the less the power loss.

Tiger Neo N-type 78 HL4 630 watts solar panel has a temperature coefficient of power of -0.29%/ᴼC.

Power loss (%) = (cell temperature – 25 ᴼC) x Temperature coefficient of power

Assuming the cell temperature is 45 ᴼC, in that case, the power loss in 630 watts solar panel is:

Power loss (%) = (45 ᴼC – 25 ᴼC) x -0.29%/ᴼC

= 20 ᴼC x -0.29%/ᴼC

= -5.8%

In absolute terms, the power loss is 36.54 watts (5.8% of 630 watts).

Other salient features

• Weight: 30.6 kg
• Front glass: 3.2 mm, anti-reflection coating, high transmission, low iron, tempered glass
• Frame: anodized aluminum alloy
• Junction box: IP 68
• Salt and mist resistant
• Ammonia resistant

Units produced by Jinko Tiger Neo N-type 78 HL4 630-watt solar panel

In good sunlight, this 630-watt solar panel will produce 85 units per month.

That makes close to 3 units per day.

In those 3 units you can run:

4 x 100 watts fans for over 7 hours.

Conclusion

Jinko has produced high-power solar panel it is suitable for:

a) People who want a highly efficient solar solution in a limited space.

b) Buyers who live in hot climates. Because its low temperature of power keeps the power loss under control as the cell temperature rises.

c) People living in cold regions. Here snowfall is a common phenomenon. This snow not only puts stress on the solar panel but also affects its power output.

But Tiger Neo N-type 78 HL4 630 watts solar panel’s higher snow load rating makes sure that it can withstand the snow pressure effectively. Also, its high-efficiency value keeps the power output smooth even if the snow covers the surface of the panel.

d) Homeowners who live near the water bodies. Its salt and mist resistance makes sure that it does not corrode by the moisture and the salt content present in the air.

e) It can even be used in places where livestock such animals are kept. Animal excreta releases ammonia gas which has a corrosive effect. But Jinko’s ammonia-resistant solar panels perform well even under these conditions.

f) Also, its latest technology minimizes heat losses, improves structural strength, and increases the power output of the solar panel.

Thank you

Yash

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