Showing posts with label solar panels. Show all posts
Showing posts with label solar panels. Show all posts
Effects Clouds Solar Panel
Effects Of Clouds On A Solar Panel
Solar panels hold a wealth of benefits, both for individuals and for the world at large. Economically, solar panels promise to lower the cost of electrical power. Environmentally, solar panels can give us cleaner power, sustainable power that will not require further damage to the environment. Solar power can reach remote areas. It can carry education, or urgently needed medical information.The effects of clouds on a solar panel, though, might diminish those and other promising benefits.
The effects of clouds on a solar panel might make it far less efficient in certain parts of the world and at certain seasons.
For that reason, people who are considering solar panels for their homes are often heard to ask: will clouds affect my solar panels?
Will Clouds Affect My Solar Panels?
Clouds do affect solar panels. The amount of power your solar panels can produce is directly dependent on the level of light they receive.
In full, bright sunlight, solar panels receive maximum levels of light. During those "peak" sunlight hours, your solar panels will produce power at their maximum capacity.
When clouds cover the sun, light levels are reduced. This does not shut down power production, however. If there is enough light to cast a shadow, in spite of the clouds, your solar panels should operate at about half of their full capacity. Thicker cloud cover will reduce operations further. Eventually, with heavy cloud cover, solar panels will produce very little useful power.
The Good News!
The effects of clouds on a solar panel can be surprising good, however. Incredibly, your solar panels will put out their ultimate amount of peak power during cloudy weather!
As the sun moves into a hole between the clouds, your solar panels will see something wonderful. They will see full direct sunlight "plus" reflected light from the clouds! They will drink in more energy than they could on a cloudless day!
The effects of clouds on a solar panel could then produce peaks at or above 50 percent more than its direct-sun output!
Meeting the Challenge
There are ways to meet the cloud challenge.
1. If you often have clouds in the afternoon, but mornings are clear, aim your solar panels slightly toward the east.
2. Be sure you use a large enough battery system to maximize the amount of power stored for use when the clouds arrive.
3. Make sure your controller has plenty of headroom over the rated panel output power so that it can absorb the surges when the sun reflects off the clouds.
Those tricks and more are practiced in cloudy regions of the world where people have sprinted far ahead of the United States in their use of solar panel energy.
Everything You wanted To Know About Solar Panels
Everything You wanted To Know About Solar Panels
The history of solar panels can be dated back to 1839 as this was the period when French physicist Antoine-Cesar Becquerel made the astonishing discovery of the photovoltaic effect. This surprising discovery took place during an experiment that involved an electrolytic cell made from two metal electrodes and was placed within an electrolyte solution. Antoine-Cesar Becquerel discovered during the experiment that when the electrolytic cells were exposed to light, it produced a certain amount of electricity. The more the light, the more the production of electricity and that is how solar panels actually came into the picture.Almost 50 years later in 1883, the first solar cell was developed by Charles Fritts and it was formed using selenium coating sheets with a micro-thin layer of gold. Between the period of 1883 and 1941 there were several scientists as well as inventors who with the help of companies started experimenting with solar energy. It was during this period that Clarence Kemp, an inventor from Baltimore patented the first ever commercial water heater that was being powered by solar energy. Apart from this, the great scientist Albert Einstein also published a thesis on photoelectric effect and within a short period of time received the coveted Nobel Prize for his thesis and valuable research.
Around 1941, an American inventor named Russell Ohl who was working for Bell Laboratories patented the first ever silicon solar cell. This new invention was spearheaded by the Bell Laboratories and they went on to produce the first ever crystalline silicon solar panel in the year 1954. This was the most effective solar cells in that era as it achieved a 4 percent return on overall energy conversion. In the next few years several scientists from all over the world continued their research, study and experimentation to improve upon the original solar cells and started producing solar cells that gave 6% efficiency on overall energy conversion.
The first ever large scale deployment and use of solar energy ever recorded was in space satellites. USA was the first country to enable production of solar cells that gave 20% efficiency and this was in the year 1980. By 2000, USA had produced several solar cells that were producing 24% efficiency. Last year, two large companies, Emcore Photovoltaics and Spectrolab rose to dominate the world of solar cell production by producing cells that gave 28% efficiency.
Working of Solar Panels
The solar panel basically consists of pure silicon. Silicon is first stripped of all its impurities and hence provides the most ideal neutral platform for enhancing the transmission of electrons. In its natural state, Silicon can carry at the max four electrons although it has the ability to carry eight. So mathematically speaking it has enough room for 4 more electrons.
When a silicon atom is made to come into contact with a second silicon atom then each of them receive each other's extra four electrons. So the 8 electrons satisfy a single silicon atoms' needs and this results in the creations of a strong bond but the fact is that there are no negative or positive charges. To produce a large piece of pure silicon, the silicon atoms have to go through the process of combination for years. Once the pure silicon is ready, it is applied on to the plates of solar panels. When silicon is combined with other elements then it produces a positive or negative charge.
Solar panels are being looked as the provider of tomorrow as the other forms of creating electricity are getting replenished by the day. There are several online sources and websites who are selling solar panels with a power range that varies from 10WP to 280WP.
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