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  • John Kimball
  • (305) 710-9645
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Welcome to Sun Electronics

Welcome to Sun Electronics

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Sun 435 Watt solar panels

Conext 6848

Chaori 230 Watt solar panels

Unisolar 136 watt

 

Sun Customer's Cheatsheet

Product Spec
Sheet
Watts Cells Cell
Type
Single
Panel
Price
Pallet
Price
Container
Price
Add to Cart
--- 435 128 Mono
$0.29/W
--- ---
pdf 90 --- a-Si
$0.34/W
--- ---
--- 435 128 Mono
$0.39/W
--- ---
pdf 136 22 a-Si
$0.56/W
$0.47/W ---
pdf 395 160 Mono
$0.58/W
$0.58/W ---
pdf 230 60 Poly
$0.68/W
$0.58/W $0.54/W
pdf 435 128 Mono
$0.69/W
--- ---
pdf 245 96 Mono
$0.78/W
--- ---
pdf 230 60 Poly
$0.82/W
$0.78/W ---
pdf 240 60 Poly
$0.82/W
$0.78/W ---
pdf 250 60 Poly
$0.82/W
$0.78/W ---
pdf 295 72 Poly
$0.82/W
$0.78/W ---
pdf 300 72 Poly
$0.82/W
$0.78/W ---
pdf 285 72 Poly
$0.84/W
$0.8/W ---
pdf 310 72 Poly
$0.94/W
--- ---
pdf 80 36 Poly
$0.94/W
$0.94/W $0.94/W
Out Of StockInquire Now
pdf 100 36 Poly
$0.98/W
$0.94/W $0.94/W
pdf 150 36 Poly
$0.98/W
$0.94/W $0.94/W
pdf 50 --- Poly
$0.98/W
--- ---
pdf 15 36 Poly
$1.47/W
--- ---

Export Only Solar Panels

Product Spec
Sheet
Watts Cells Cell
Type
Single
Panel
Price
Pallet
Price
Container
Price
Add to Cart
pdf 260 60 Mono
$0.56/W
$0.56/W ---
Export Only-Not Available in U.SInquire Now
pdf 265 60 Mono
$0.55/W
$0.55/W ---
Export Only-Not Available in U.SInquire Now
pdf 235 60 Poly
$0.68/W
$0.68/W $0.68/W
Export Only-Not Available in U.SInquire Now
Welcome to Sun Electronics

Have you been looking for information About Solar Panels? Solar technology? Or Photovoltaics?
Here is a brief history of solar panels and information to help you set up your next solar panel system.

Solar Panels Harvest Energy from the Sun
Solar panels use light energy from the Sun to generate electricity. In about half an hour, our planet receives enough energy from the sun to power homes all around the world for an entire year. This virtually unlimited power from the Sun is what makes them a good buy. Solar panels have been around for the last 50 years, and they have transformed how we power our cities. Solar panel energy is clean energy.

Solar Panel technology has advanced since its inception in 1876. In 2012 it was estimated that the quantity cost per watt was about US$0.60, which was 250 times lower than the cost in 1970 of US$150.

How Solar Panels Work
Solar modules are made of multiple solar cells which trap light between layers of silicon wafers. Electrons are then knocked loose from their atoms, allowing them to flow freely through the semiconductors. Separate diodes, and P-N junctions prevent reverse currents and reduce loss of power on partially shaded panels.

The flow of electricity flows in one direction, like a battery, the electricity made from solar panels is called direct current (DC), as opposed to alternate current (AC). Solar modules usually convert Sunlight at 5% - 18% efficiency. There is research being done in academia to increase cell efficiency by creating multi-junction solar cells that can capture wider bandwidth of usable light. Solar cell technology is still considered to be in its "early" stages.

Solar Panel Components
Photovoltaic modules are the main building blocks of a solar power system. Each solar module produces a limited amount of power (Watts) and a typical installation consists of multiple panels, called an array. The array produces DC (direct current), which can be stored in batteries or instantly converted into AC (alternating current) which can be used by convetional appliances like diswashers, refrigerators, stoves, blenders, et cetera.

The Equipment that converts DC to AC is called an inverter, and they come in a few varieties, modified sine wave or pure sine wave. They can be further classified based on whether they are grid-tie or off-grid. There is another inverter that is making it's way into the market and they are called microinverters. Micro inverters has simplified installation of solar systems and it makes it easy to add on panels to an installation very easy. Each solar module has its own micro inverter which converts power from DC to AC. Off Grid installations require a charge controller to manage the power from the panels, charge batteries, and prevent over charging.

Like Solar Modules, there has also been innovations in the field of charge controllers. One innovation in specific is the maximum power point tracking (MPPT). This innovative way of charging batteries monitors the maximum power voltage from an array and the input voltage on the batteries adjusting amperage to compensate for fluctuations. MPPT charge controllers is the best equipment to efficiently manage power harvest.

Types of Solar Panels
There are 3 types. They are mono-crystalline (single crystal), poly-crystalline (multiple crystals), or amorphous silicon. Mono-crystalline is made from a homogenous and unbroken sample of silicon. This method uses very pure silicon grown in a complex growth process, and then sliced into wafers that compose the individual cells. This was the first method used to manufacture solar cells, and are still highly regarded for their efficiency ratios.

Poly-crystalline panels are composed of many crystallites of varying size and orientation. These multi-crystalline panels are generally less expensive and slightly less efficient than mono-crystalline modules, yet lately the difference in efficiency is very small. Like their mono-crystalline counterpart, the cells are also cut into wafers that make up the individual cells of a solar panel.

Amorphous solar panels use the non-crystalline, allotropic form of silicon, in which a thin layer of this silicon substrate is applied to the back of a plate of glass. These panels are much cheaper and less energy efficient, yet they are more versatile in how they can be used. For example, amorphous solar panels can be manufactured into long sheets of roofing material. Thin Film solar panels also fall into the amorphous category. This type of cells can be mounted on a flexible backing, making them more suited for mobile applications.

Most solar panel types has a warranty of 25 years that gurantee out put power to be at least 80%. Over decades the solar panel degrades slowly, and as a result electricity production will decline little by little. The industry standard for warranties ranges from 20 to 25 years although some panels can product adequate power for over 30 years.

Off Grid versus Grid tied
Solar panels have become a common thing in rural areas where electricity from the grid is non-existent or too expensive to attain.
There installations are called off grid because they do not connect to the electric company's powerline in any way. These systems require batteries to store energy for use at night or during days with long stretches of overcast weather. The energy from batteries are in DC which can power DC appliances found in RVs or they can be converted to alternating current for use with conventional appliances. Having an off grid system means that you do not depend on the utility company for power, with this type of system you receive power from the sun to power appliances.

A large chunk of the cost of a solar system can come from batteries. You can eliminate the cost of batteries by going with a system that connects to your utility company's power grid. These systems are known as grid-tie systems. These systems use the power from the grid during the night or during long stretches of inclement weather. These systems are formally known as grid-tie or grid-interconnected systems. In this version of solar system you sell any excess power you produce back to the utility companies who have chosen to support "net metering". To begin selling your power to the utility company you must first sign up for a net metering program. Your utility company will install a smart meter called a Time of Use Meter which will run backwards when you are producing excess energy.

Note: Remember that grid tie systems without a battery backup are only function when the grid is operational. Due to "anti-islanding" features on grid tied inverters in grid-tied sustems without a battery back up will not continue to product power during a power outage regardless of whether you have sunshine or not. This is to protect utility workers from working on live wires.

Solar panels produces DC power, in order for this energy to be used inside a home the power must be converted to AC. In a grid tied system this is accomplished by using a large central inverter, or each solar panel can use it's own micro inverter. Once the power is converted to AC and its phase is synchronized with that of the grid, is it then tired in to your main junction box, which is ultimately interconnected to the national grid.

Sun Electronics - Lowest Prices in Solar Panels, Kits, Inverters