What is A Solar Panel?
lubi solar       October 5, 2018
A solar panel is the main component of a solar system. It is a collection of solar cells put together to generate electricity. Solar modules account for nearly 60% of the total cost. Hence it is important to learn about this critical component.
A solar panel is made up of numerous solar cells. In other words, solar cells are the basic building blocks of solar panels. Solar cells are stringed together to make solar panels which involves soldering, encapsulating, mounting them on a metal frame, testing etc.
Solar panels have the capacity of absorbing the sunlight (photons) and generating electricity (electrons). The type of electricity generated is direct which is not usable by most of our electronic devices. Hence they are converted into alternating current or AC with the help of an inverter.
Silicon Cells –s-u-n-l-i-g-h-t→ DC –s-o-l-a-r–i-n-v-e-r-t-e-r→ AC
Parts of a Solar Panel:
A typical solar panel consists of a silicon cell-layer, a metal frame, a glass casing and wires. Silicon is a good conductor which allows easy absorption and conversion of sunlight into electricity. The glass casing provides strength and durability to the panels. In addition, the panels also have a layer for insulation and a protective back sheet which prevents humidity and heat dissipation. A standard solar panel comes with an aluminium frame, though frameless solar panels are also available in the market. Frameless solar panels are used to increase the aesthetic value of a building. BIPV or Building-integrated photovoltaics is the integration of photovoltaic modules into the building envelope such as roofs or windows, facades and skylights. This component is being used on weaker building structures and roofs where solar panels cannot be installed.
Types of Solar Panels:
Solar panels come in a variety of shapes and sizes. They are also made up of different materials like silicon, thin film solar materials like Copper Indium Gallium Selenide or Cadmium Tellerium. Broadly the panels can be classified into Monocrystalline and Multi-/ Polycrystalline. Monocrystalline PV cells are sliced from a single, homogenous ingot, whereas polycrystalline cells are sliced from an ingot that has been made from casting many silicon crystals together. Monocrystalline technology is more efficient and expensive.
Solar panel costs have drastically reduced over the last decade. Solar prices have reached grid parity in a number of places. Currently polycrystalline is the most prominently used technology. However, industry experts are of the opinion that monocrystalline is soon to gain traction, given its higher efficiency.
Solar Panels are available in such a wide variety of power ratings that it can confuse a layman on the size of solar panel to buy for his home use. The requirement for charging a laptop is much smaller than the power required to charge your entire household with solar panels.
Lubi Solar Panels:
Lubi solar panels are made up of high efficiency solar cells procured from reputed global supplies. These panels specialize in crystalline silicon technology and are available in both mono- and polycrystalline make. It utilizes 4/ 5 busbar cell technology for higher efficiency. Lubi Solar panels come with 25 years of linear performance warranty.