Wondering whether you should invest in and what the Benefits of PV Solar Panels are? If you are looking for a long term investment and an environmentally friendly way to go about things, it does sound like a good option.
Understanding The Benefits of PV solar Panels
The two common types of solar technology today when it comes to solar panels are photovoltaics and solar thermal. Both of them have different purposes, but end up generating the energy from the same source, the sun! Considering that the sources of fossil fuels all over the world are decreasing day in and day out, humankind must look forward to a different kind of energy source. One that does not pollute not eat up the earth like the others.
The Photo Voltaic systems are commonly found on the rooftops and are often seen powering homes on even small corporations. This technology uses the sun rays to convert photons thus producing electricity from the rays of the sun directly.
Thermal technology, on the other hand, makes good use of the sun’s energy in order to generate as well as store heat. electricity is a by-product in this process which is then harnessed.
Countries like Australia, who have already started becoming more and more conscious about the state of our environment, uses these forms to generate more energy of times than all fossil fuels combined. The idea is to be as sustainable as possible. America is already in the process of harnessing wind energy whereas countries such as India are slowly and slowly adapting means such as thermal and solar.
Because it is not properly harnessed, humankind can only avail somewhere around one millionth of the what the entire source has to provide.
Workings of a PV solar Panel
PV systems can efficiently use the solar energy to produce the electricity you need. Here is how it works.
In a photovoltaic cell system
Once the sunlight enters the system, electrons are then dissected and separated from their host – i.e. silicon atoms. Photons, also known as tiny packets of light energy, get trapped by electrons. In that process, There is enough energy released, necessary to get the electron free from its personal host atom.
A pn-junction, commonly referred to as a one way membrane is present on the top of the battery. This particular layer is formulated by using extremely small quantities of phosphorus present around a depth of one micrometer (approximately) within another layer of silicon. The moment a free electron manages to pass the pn-junction, it faces problems in returning in a similar fashion. This causes a negative voltage to form on the surface that faces the sun. Exactly like this, a positive voltage appears on the rear surface of the cell.
Both the front as well as the rear surface is connected to each other by the presence of an external circuit. This external circuit in turn thus manages to extract electricity, current, voltage as well as power from the photo voltaic cell. These cells are neatly packed behind glass in order to formulate the same photovoltaic modules used to generate electricity. These cells have an average service life of around two to three decades. Not a bad bargain at all! Multiple photovoltaic cells, arranged in modules and mounted form a PV solar panel.
How Can It Be Useful For You?
These benefits of PV solar panels, when set on rooftops have the capacity to bear the weight and needs of an entire building. By the virtue of being exposed to the sun throughout the day, they can produce immense amounts of electricity. Enough power to sustain an entire is produced. Any normal module is capable of generating somewhere close to about 200 kilowatt hours (AC) per square meter every year. An area of 25-50 m2 is required to set up a PV panel that can fuel an average as well as energy-efficient household. Houses are capable of exporting or sending varying amounts of electricity to the grid. All of them export more in the morning than the levels of import at night.
An area of 10m2 or more has to be set aside for the yearly greenhouse gas emissions. Imagine the fuel efficient car that emits around 0.2kg of carbon dioxide per km after driving for an average of 10,000km every year.This one has zero or very little polluting effects. Photo Voltaic Array is the enhanced form of Photo Voltaic panels with PV cells at its core. The Array frames we are focusing upon are necessary to allow movement. These help the PV panels to be directed at particular angles so that you get the maximum energy.
The Top Types of Arrays
Here are the different categories of arrays:
- Fixed Arrays – Ones that have to be permanently pointed towards the same direction. Mostly found on the roof top of houses, these Arrays have the option to manually shift and adjust the direction so that changes can be made accordingly every time to get optimum output.
- Tracking Array Frames – These ones are controlled via an electric motor and refrigerant gas. With an inbuilt GPS Tracking system, electrical power output is maximised all year round because of the panel automatically aligning to the best angle available.
These frames are self-sufficient in Tracking. Thus the power necessary for such constant movement is self-generated and employed by the machine itself. These machines perform extremely better in sunny and dry conditions. The problem though is that these machines are in a constant requirement for maintenance.
Is it Worth It?
New-generation PV cells are being crafted from a variety of materials other than silicon. Solar inks are used to fashion new technology printing presses, solar dyes, as well as conductive plastics that make life easier have also started coming out. New PV cells have started using plastic lenses and mirrors to concentrate and direct sunlight upon an extremely small piece of high-efficiency PV fibre. While it is expensive, because of the small quantity it is needed for, the systems automatically become cost effective to be used as utilities as well as in the industrial sector.
The most restricting feature about the PV solar panel, then becomes the uneven distribution of sunlight all over the globe, year round. With the division at the equator and how the further away you go, the amount of sunlight that reaches you keeps getting lesser and lesser both in quantity as well as duration. Some countries do not see the sunlight for months and especially why this technology is possible to be harnessed in only the sunniest parts of the World.
Reading the Market
Photovoltaics solar panels make the primary chunk of solar energy market and used in everything from consumer products for electronics, power supplies in remote areas to even satellites.
The fact that prices of these PV solar panels have dropped significantly in recent years have made it popular among many, and you can get it for below $1000 per kilowatt. Sometimes, the cost can be less costly than the domestic and commercial retail electricity available from the grid.
The Benefits of PV Solar Panels
With the amount of research behind the alternative power source project, prices for photovoltaic systems can be expected to take a huge dip for a long time now. All over the world PV module sales generally reach up to 30-40 gigawatts every year. This is often approximately equal to the capacity of various countries’ system.
One gigawatt of PV panels installed, has the capacity to delve electricity to a huge number of homes. If individuals themselves decide to take up the duty to put solar electricity in their own houses, then it solves the much larger problem of outreach. If there is a decline in demand, it might be so because of the initial costs to set up and buy. This is fuelled by a misconception that it is impossible to recover the initial costs incurred while installation. The fact that it requires zero or no maintenance makes sure that you do not spend a whole lot of money on that every year.
Although the price might be the same, it is still intelligent to figure out if everybody is willing to change.
Problems in the industry
With all the benefits of PV solar panels, there are a few drawbacks. Events that have transpired over the years always dependent on the photovoltaic estimation, are still responsible for the decline. Several steps ahead of production, multiple companies have declared themselves bankrupt because of not being able to meet demands! This has led to an intense price war and a wave of bankruptcies of high profile companies dealing with photovoltaics. Innovation, both technical and marketing wise has turned out to be two pillars necessary for companies to survive. A complete industry makeover and remodeling is seriously important. Whoever does it quicker will be the emperors of a huge revenue producing industry.
The Photo Voltaic industry has to worry very little about pollution and availability of resource material. Sunlight is abundantly available and it’s the most eco-friendly fuel in the whole damn world! Albeit land to set up and other things still reign heavy on their minds, it doesn’t constrict the activity of the industry in itself. What keeps pushing it forward is more efficient technology and low pricing.
Parity for grids in the context of photovoltaics has already become a major concern. The question of whether or not the benefits of PV panels are capable of constantly providing electricity to all who use it is already looking. The retail value of this particular technology is in question and how to act about it is a solution that is constantly being put forth. For example, both Australian and South African cities, who use renewable sources of power have managed to not only successfully employ this but also to cut the cost of electricity prices to least two-thirds of the earlier price.
Additionally, it is easy to set up right – most consumers set it up on top of the home without having to risk dangerous radiation diseases. It is not only a question of steady electricity supply, but also if it is possible for the power grid to sustain multiple forms of a renewable source such as both solar and wind power. The argument behind it is whether or not so many different forms of power can be steadily accumulated together.
The example of RSA works here as well. With the introduction of different forms of renewable resources, it is easy for energy to be generated. Advancing technology helps with the containing and resting factor. Multiple options are present to control as well as manage fluctuations in the electricity and energy fueled by wind and photovoltaics. Technology can now also handle the major shift in demand of electricity, day in and day out, this includes the huge shift in demand from day to night.