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Solar Photo Voltaic Modules (Solar Panels)
Solar Products in Trivandrum, SENSOL NO.1 Company offers all types of latest Solar Panels in a wide range of capacities
All top brands are available in retail, for small business owners and for Solar PV projects providing the best Solar Products in Trivandrum.
We have technical and commercial tie-up with all top brands of Solar panels and Solar Products in Trivandrum , both Indian made and imported. Major Solar panel brand available are:
More About Solar Panels
What is meant by ‘Solar PV’ or ‘SPV’?
“PV” in Solar is the abbreviation of Photo Voltaic, which means generation of electricity from Sunlight using semi-conductor materials. When the source of light is Sun, the phenomenon is called Solar Photo Voltaic- SPV
What is Solar PV Module?
Solar PV module is the heart of a solar system, which convert solar radiation to electrical energy.
For a Solar PV system of higher capacities, multiple Solar PV modules are connected in series / parallel/ series-parallel combination. A photovoltaic panel refers to a pre-wired, field-installable unit that consists of one or more PV modules assembled together.
Solar Cells are connected electrically in series and/or parallel circuits to produce higher voltages, currents and power levels.
Solar PV cell is the basic building block of a Solar Module. These cells are usually made of semi-conductor materials, most commonly SILICON. An individual PV cell is usually small, typically producing about 1 or 2 watts of power, which cannot be used to do the real work.
Photovoltaic modules are comprised of PV cell circuits that are encapsulated within a protective laminate to safeguard them from environmental elements. PV MODULES are the fundamental building blocks of PV systems.
A Photovoltaic array refers to the comprehensive power-generating unit, comprising any number of PV modules and panels working together.
What are the types of Solar PV Modules based on Cell construction?
There are 4 main types of solar PV Modules based on type of solar cells in it
Poly Crystalline Panels
The polycrystalline solar panels are also called “multi-crystalline” panels. These panels are composed of melted silicon crystals. They are made out of melted silicon fragments that are poured into square moulds. When these are cooled, thin wafers are sliced from it to make poly crystalline PV cells. These cells are used to make Polycrystalline Solar PV modules.
Conversion efficiency of Polycrystalline solar panels are less (19.9%) compared to monocrystalline solar panels because they are composed of multiple silicon crystals and in which electron movement is limited. This means more area of solar cells are required to produce same power as compared to Mono crystalline. This is the reason why Mono panels has more wattage than poly panel of the same size.
Also the cost of Poly crystalline panels are less than Mono crystalline because of simpler manufacturing process and lesser Silicon wastage during manufacturing.
But Poly crystalline panels are said to be more efficient in low-light conditions than mono-crystalline. These types of Solar modules have square shaped cells and shining blue hue with straight edges.
Life span of poly crystalline panels are said to be lesser than Mono crystalline.
Mono Crystalline Solar Panels
The monocrystalline solar Modules are also known as the single crystal solar modules. Pure silicon crystals are used to make Mono cells. highly pure silicon ingot are made first and cells are sliced from this ingot. They are visually unique and uniform in colour- black or dark blue, as they are made from pure silicon. being the No.1 Solar Company & providing top Solar products in Trivandrum
Mono crystalline Solar Module
Mon crystalline solar cell
Mono crystalline cells have HIGHER EFFICIENCY than any other type of solar cell because they are made of a single crystal. So, the wattage of Mono solar module is more than that of a Poly Module of same size.
Lifespan is also said to be more. Cost of Mono crystalline Solar modules are higher than Poly crystalline
PERC (Passivated Emitter and Rear Cell) Solar Panels
In the normal solar module, some of the light passes through the solar cell. In the other hand, the passivated rear face of the PERC cell has high internal reflectance and the light bounces back for a second chance of absorption.
PERC, (Passivated Emitter and Rear Cell), is an advanced technology solar cell which can achieve higher energy conversion efficiency. In these cells a dielectric passivation layer is added on the rear side. The dielectric passivation layer helps to increase the conversion efficiency.
Conventional solar panels absorb sunlight to some extent and the rest of light passes straight through them. In PERC panels, the additional passive layer helps the unabsorbed light to be absorbed again from the rear side to make it more efficient.
Nowadays, this technology is combined with Monocrystalline cells to produce high efficiency Mono-PERC panels resulting highest power rating Solar PV modules.
Thin Film Solar Panels
As the name indicates, thin film solar cells are hundreds of time thinner than normal solar cells, allowing to make flexible solar modules. These have several advantages over conventional solar cell. The enhanced flexibility, giving them more applications than conventional devices. Additionally, they are cheaper due to the ease of mass production.
Advantages
- Production is simpler and faster than crystalline solar cells
- Flexible
- Manufacturing process have got less carbon footprint
- Less expensive
Disadvantages
- There are disadvantages as well, such as less efficiency, toxic nature of materials, less availability of base material, lesser life etc.
- There are 3 types of solar Thin-Film cells built using a variety of materials and processes.
Amorphous Silicon Solar Panel
Amorphous silicon solar cells are widely recognized as the predominant type of thin-film cell. They are commonly utilized in various electronic devices such as calculators and watches. These are made up of silicon, but constructed in a different way. Instead of using solid silicon wafers, Amorphous panels are made by depositing non-crystalline silicon on a substrate of glass, plastic, or metal. Amorphous solar panel are very flexible because they are very thin.
Cadmium telluride (CdTe) solar panels
Copper indium gallium selenide (CIGS) solar panels are constructed using a compound known as copper gallium indium diselenide, which is layered between conductive layers. This thin-film material is applied on top of various base layers, including glass, plastic, steel, and aluminum. Certain CIGS panels incorporate a flexible backing, and their thin layers enable the panels to be fully flexible.
Other types of Solar Modules
There are lot of innovation taking place in Solar panel technology to enhance the performance. Half-cut solar cell technology & Bifacial Solar modules are some among this over the traditional silicon solar Modules.
What is Half-cut Solar Panels?
This technology reduces some of the most important power losses in standard PV modules, allowing the solar PV system to perform better.
Half-cut solar cell modules do not involve the integration of new chemical components or the development of new technologies within the cell structure.
Here the cells are cut in half with a process called cleaving, with the cell delivering the same voltage but half the current. Normally, modules with 72 solar cells will have three substrings of 24 cells in series. The corresponding half-cut solar cell modules typically consist of 144 solar cells, which are divided into six substrings, with each substring containing 24 cells.
In general, the Half cut Solar module will have 144 half cells (equivalent to 72 full cells), 2 halves, each bearing 72 half cells connected together. The overall voltage and current will be same as the normal module, but will have enhanced production, especially in locations where shading is an issue. In installations with partial shadow issues, half-cut solar cell panels exhibit higher overall power generation due to their ability to continue generating power in the top half even if there is a shadow on the bottom half. This design feature helps mitigate the negative impact of shading and improves the overall performance of the panel.
Now a days Mono Crystalline half cut panels are widely used for better performance of solar plants and solar products in trivandrum .
Advantages of half-cut solar panels
- Reduced power losses
- Increased power output
- Increased partial shading effect
- Reduced hot spots and temperature
- Integration with different solar cell technologies
What is Bi-facial Solar Panel?
Bifacial solar panels have emerged as a viable alternative that has the potential to enhance photovoltaic energy production. Unlike monofacial panels, in which only front side of the solar panel capture the solar radiation and other side is made of an opaque material, bifacial panels are a type of solar panel that is characterised by an additional gain of radiation on both the front and back side of the panel
Special structure design and floor preparation is required to get best result from bi-facial solar panels
When bifacial modules are installed on a highly reflective surface, such as a white TPO roof or on the ground with light-coloured stones, certain bifacial module manufacturers assert that there can be up to a 30% increase in production. This increase is attributed to the additional power generated from the rear side of the panels, taking advantage of the reflected sunlight.
Envisioning sustainable Energy solutions for all, Sensol the top Solar Company in Trivandrum our state-of-the-art technology harnesses both Electrical and Thermal energy abundant in Sunlight. SEnSOL is counted among the major providers of Solar power plants, solar devices and Solar water heaters in the state and top dealers of Solar Company in Trivandrum by providing best solar products in trivandrum .