Highest Rated Solar Panels
Most efficient solar panels in the world
LA Solar Group is a full-service solar panel installation company that provides both residential and commercial solar panel installation services. LA Solar Group is proud to be the leading provider of high quality solar panel products and services in Los Angeles. Our team of experienced and certified solar panel installers have installed over thousands of residential and commercial solar panel systems in the Los Angeles area. We are committed to providing our customers with the best possible experience from start to finish.
We only use the highest rated solar panels in Los Angeles. Our team of experts will work with you to determine the best type of solar panel system for your home or business. We will also help you select the right size and capacity system to meet your energy needs.
Once we have installed your new solar panel system, we will provide you with a complete maintenance and monitoring plan to ensure that your system is always operating at peak efficiency. Our team is always available to answer any questions or concerns you may have about your new solar panel system. For any questions regarding the solar system, equipment and roof issues make sure to contact customer support by email at firstname.lastname@example.org or call us on 818 373 0077.
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Solar panels come in many varieties to meet the different cost, performance, size, efficiency, and aesthetic needs of customers. The type of solar panels you obtain will vary based on the solar panel manufacturer.
Solar panels utilize the following major technologies:
- Polycrystalline Silicon (cheaper, moderate efficiency, usually blue)
- Monocrystalline Silicon (considered “premium,” high efficiency, requires less roof space, typically black)
- Thin-Film (cheaper, low-moderate efficiency, could be flexible, has lower and better temperature degradation)
Solar cells made from these technologies are usually connected in sets of 60, 72, or 96 cells. Once connected, they form a solar panel or module. In turn, the panel or modules form arrays (e.g., groupings on different roofs). It is common to collectively refer to the arrays as the solar system.
Example: Panasonic N330 (VBHN330SA16) panel comprises 96 N-Type, monocrystalline cells.
POWER RATING (WATTS)
Solar panels are rated by their DC power output in watts (W) under standard test conditions (STC) and real-world test conditions (PTC). The closer the PTC value is to the STC, the better the real-world performance would be to the marketed performance. When looked at as a ratio (PTC/STC), the ideal would be 100%.
Example: Panasonic N330 (VBHN330SA16) panel’s STC rating is 330W, and the PTC rating is 311W, resulting in a PTC/STC ratio of 94% (which is very good for this technology).
SOLAR PANELS EFFICIENCY
A solar power system’s efficiency measures its ability to convert light into electricity. The higher the efficiency, the better. Residential efficiencies in the low 20% range are considered excellent. Higher efficiency cells indicate that fewer panels are necessary to attain the same panel wattage; thus, they require less roof space.
Alternatively, a panel utilizing high-efficiency cells would produce higher wattage in the same area.
The comparison metric is (PTC Watt rating/SF). STC watts are also applicable, but PTC is a more realistic and conservative value. When comparing, the value used needs to be consistent.
Example: Panasonic N330 (VBHN330SA16) panel’s efficiency rate is 19.7, the power rate is 306 PTC Watts and it takes up (41.5″ x 62.6″ = 18sf) resulting in 306W/18sf = 17W/SF.
Efficiencies depend on the cell capability and the number of cells used. Some high-wattage panels use a greater number of lower efficiency cells at the cost of a larger panel size.
Monocrystalline silicon cell panels are the most efficient and best solar panels and come with a higher price tag. If you have enough roof space available, it may be better to use more or larger panels with lower efficiency cells.
Doing so will lower your net cost, resulting in a shorter payback period and higher ROI.
TEMPERATURE DEGRADATION OF SOLAR MODULES
Most solar panels’ power degrades with higher temperatures – the hotter the panel, the less it produces. This percentage decrease per degree of increase over 25°C is referred to as the temperature coefficient. The lower the coefficient, the better.
An average 330W panel may be more or less than 330W. Most solar panel manufacturers provide a warranted tolerance percent that limits this variance. Most premium category panels have only a positive tolerance. This means that the actual output will be between 0% and the warranted tolerance value on average.
Bi-Facial panels have a double glass construction that generates solar energy from both the front and back sides of the solar panel. Since the panels are ultra-thin, they can also be frameless with a plastic back sheet. These are aesthetically attractive options to install on residential roofs, terraces, and carports.
When installed on a highly reflective roof surface, the technology can operate at its fullest potential. In this case, the panels can produce 24% more energy than standard mono-facial modules. Bi-facial panels can generate up to 100% AC output vs. 80-85% AC output from conventional panels.
This output change is due to its low thermal and light degradation. Module efficiencies are currently up to 22%, with panel output between 310W – 370W. A 25-year power warranty comes with 95% efficiency from years 1-5 and 83% efficiency from years 6-25 at 0.6% degradation.
At LA Solar Group, we are proud to work with some of the world’s leading solar panel manufacturing companies. Panasonic, LG, Talesun, ReneSola, Q Cells and many more have all established a reputation for high efficiency and best-quality. That’s why we only use the best of the best when it comes to solar panels.
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Solar Panel Ratings
There are a few different ways to rate solar panels. The two most common methods are by their efficiency and by their quality.
Efficiency rating is how well a solar panel converts sunlight into electricity. This is important because it will determine how much power you can generate from a given amount of sunlight. The higher the efficiency rating, the better.
Quality rating is how well a solar panel withstands weathering, temperature changes and other environmental conditions. This is important because it will determine how long your solar panel will last and how much power it will generate over its lifetime. Again, the higher the quality rating, the better.
Now that we know how solar panels are rated, let’s take a look at some of the highest rated options that LA Solar Group has to offer:
Panasonic solar panels are some of the most efficient on the market, with an average efficiency of 21%. They’re also very durable and can withstand harsh weather conditions.
LG solar panels have an average efficiency of 19%, making them one of the most popular choices for homeowners and businesses alike.
Talesun solar panels have an average efficiency of 18%, making them a great choice for those who want to generate a lot of power without taking up too much space.
ReneSola solar panels have an average efficiency of 16%, making them a good choice for those who want to save money on installation costs.
Q Cells solar panels have an average efficiency of 15%, making them a good choice for those who want to generate a moderate amount of power without spending too much money.