LG electronics is a diversified group of South Korea and it is a global leader in consumer electronics that was started in the year 1958.
It established the solar division in the year 2008 and began full scale mass production of solar panels in 2010.
In the year 2013, it launched its most successful and efficient solar panel series NeON (N-Type solar technology).
It has an in-house solar testing facility that is approved by major inspection authorities such as UL, TUV Rheinland, DVE, and Intertek.
It has its in-house manufacturing facility at Gumi, South Korea, and Huntsville, Alabama
Solar Panel Series by LG
LG manufactures both mono facial and bifacial solar panels for its consumers under 4 main series:
1) NeON R Series:
This has 60 cells and 66 cells solar modules based on Monocrystalline/N-type technology.
2) LG NeON 2 Series:
3) Mono X Plus
4) H- series (Bifacial)
The Technology of LG Solar Panels
Kindly look at the technology of LG series solar panels:
Kindly see that LG uses monocrystalline, N-type solar cell technology in 3 out of 4 of its solar panel series.
Let me clear the difference between N-type and P-type solar cell technology.
Both are the derivatives of the silicon cell.
Read: How Silicon solar cells generate electricity?
Silicon is a semi-conductor with 4 electrons in its outermost shell.
The manufacturers dope the silicon either with Boron or Phosphorous to make it more conductive.
When silicon is doped with Boron (which has one electron less than silicon in its outermost shell), it becomes a P-type solar cell (positively charged solar cell)
When silicon is mixed with Phosphorous (which has 1 electron more than silicon in its outermost shell), it becomes an N-type semi-conductor (negatively charged solar cell).
The N-type solar cells are immune to boron-oxygen defects that affect the power output of the solar panels.
On the contrary, when solar Panels using P-type silicon cells are exposed to the sunlight, the boron reacts with oxygen forms a complex compound that obstructs the electrons to produce a photovoltaic effect.
Within the first few hours of exposure to sunlight, the solar panel losses 1%-3% of its power capacity.
This effect is Light Induced Degradation.
The N-type solar cells are immune to the LID effect.
Interesting Read: What factors degrade the performance of solar cell?
In addition, LG uses “cello technology” in its solar panels that use more busbar than traditional numbers of 3-5 to connect the solar cells, improving their performance.
When you cut the traditional 60-cells and 72-cells solar modules into halves, they become 120-half cells and 144-half cells modules.
This is Half cut solar cell technology.
LG uses this technology to improve the performance of its Mono X Plus and H-series bifacial solar modules.
It has the following benefits such as:
The next in the line is the bifacial technology for its NeON 2 and NeON H-series solar panels.
Bifacial solar panels conduct electricity from both sides, leading to increase in the power output.
Efficiency of LG Solar Panels
Efficiency is the ability of the solar panel in converting the sunlight into electricity.
We see LG solar panels are efficient up to 22.1%.
Let us see the efficiency of solar modules under different series:
Read: Why the efficiency of the solar cell is limited?
The Temperature Coefficient of Power
The resistance of the solar cell increases with the increase in its cell temperature beyond 25 °C.
As a result, we get less current.
The solar panels behave differently with the same increase in temperature.
Some lose more power while others are less.
Read: Best Solar Panels for Hot Climate
The power any solar panel will lose with the increase in the temperature is defined by the metrics Temperature Coefficient of Power.
Its units are %/°C and its value is written negative to represent the loss in the power.
If the temperature coefficient of power is less, the panel will lose less power and more value means, the panel will lose more.
For example, a temperature coefficient of -0.4%/°C means that the solar panel will lose 0.4% per degree rise in the temperature beyond 25 °C.
When the cell temperature is 45 °C.
The power loss (%) = (45 °C – 25 °C) x Temperature coefficient of power
The Power Loss (%) = 20 °C x -0.4 %/°C = - 8%
Let us look at the temperature coefficient of power of the LG series:
Strength of LG Solar Panels
The solar panels will remain outside lifelong once they are installed.
They have to be strong enough to withstand the extreme weather conditions.
The Snow load rating (Front Load) and the wind load (rear load) rating represent the strength of the solar panels.
The high values indicate that the solar panels are strong.
We can say that the LG solar panels are strong enough to bear harsh environmental conditions.
(*The industry average is 2400 Pa for snow and 2400 Pa for wind.)
Read: Solar Panel Specifications Explained: A Complete Guide
LG Solar Panels Warranty
When a buyer purchases the solar panel, the manufacturer ensures her/him in 2 ways by giving:
Product warranty: protects the panel from any manufacturing defect, premature wear and tear, other environmental degradation before time. It is given in years.
Performance warranty: It ensures the buyer, her/his solar panel will produce a certain percentage of the Pmax even after 25 years. We get a performance warranty in years.
Let us look at the warranties of the LG solar panel series:
1) LG R series:
It offers product a warranty of 25 years and the performance warranty of 25 years in two ways:
2) LG NeON 2 Series:
3) LG Mono X Plus Series:
4) LG NeON H series:
Price of LG Solar Panels
The per watt price of mono-facial LG solar panels is $0.95 to $1.2 per watt.
It is on the higher side of the price bracket.
Units Produced by 5 kW Solar Power System
The units produced depends on many factors.
When I consider the following parameters:
The 5-kW system will produce 20 to 22 units per day
Pros of LG Solar Panels
Cons of LG Solar Panels
LG solar panel is a reputed, durable, and trustworthy brand it is suitable for:
My ratings are as follows:
*(Basis of my rating: I quantify the given parameters with reference to the best value available in the market.
For example, if I want to quantify the efficiency of the solar panel on a scale of 5.
I use the following formula:
Assuming, the efficiency of the solar panel in consideration is 20% and the highest efficiency available in the market is 22%.
The Efficiency rating = (20%/22%) x 5 = 4.5
Please let me know your experience with LG solar panels and share that in the comment section.
Profitability of LG Solar Panels
It is a good practice to know the right design and the profitability of the solar power system when you decide to go solar.
Why not try my solar feasibility spreadsheet and find the financial feasibility of the complete system within minutes?