What Is Solar Energy?

Solar energy is energy obtained from the sun’s radiation. There are two main forms of solar energy, active solar energy, and passive solar energy.

Active solar energy systems use the same principles as passive systems except that they use a fluid (such as water) to absorb the heat. A solar collector positioned on the roofs of buildings heats the fluid and then pumps it through a system of pipes to heat the whole building.

Passive solar design refers to the use of the sun’senergy for the heating and cooling of living spaces by exposure to the sun. When sunlight strikes a building, the building materials can reflect, transmit, or absorb the solar radiation. An example of a passive system for space heating is a sunspace or solargreenhouse. Passive systems also make use of materials with large heat capacities (stone, water, or concrete) to store and deliver heat. … Direct Gain – Allows the solar energy to come in through the south-facing window panes

Researchers have long looked for ways to improve the efficiency and cost-effectiveness of solar cells – the lifeblood of solar PV systems. A solar PV array is comprised of hundreds, sometimes thousands of solar cells, that individually convert radiant sunlight into electrical currents. The average solar cell is approximately 15% efficient, which means nearly 85% of the sunlight that hits them does not get converted into electricity. As such, scientists have constantly been experimenting with new technologies to boost this light capture and conversion.

Another major focus of scientists is to find new ways to store energy produced by solar PV systems. Currently, electricity is largely a “use it or lose it” type resource whereby once it’s generated by a solar PV system (or any type of fuel source) the electricity goes onto the grid and must be used immediately or be lost. Since the sunlight does not shine twenty-four hours a day, this means that most solar PV systems are only meeting electrical demands for a portion of the day – as a result, a lot of electricity is lost, if it’s not used. There are a number of batteries on the market that can store this energy, but even the most high-tech ones are fairly inefficient; they’re also expensive and have a pretty short shelf life, making them not the most attractive options for utility companies and consumers. That is why scientists are exploring different ways to store this electricity so that it can be used on demand.

The Future of Solar Energy

The Future of Solar Energy thinks about just both extensively acknowledged courses of modern technologies for transforming solar energy right into electrical energy– photovoltaics (PV) and also focused solar energy (CSP), often called solar thermal)– in their existing as well as probable future types. Due to the fact that power supply centers generally last numerous years, innovations in these courses will certainly control solar-powered generation in between currently as well as 2050, as well as we do not try to look past that day. Unlike some earlier Future of researches, we additionally offer no projections– for 2 factors. Increasing the solar sector significantly from its reasonably small present range might create adjustments we do not claim to be able to predict today. Second, we acknowledge that future solar release will certainly depend greatly on unclear future market problems as well as public laws– consisting of yet not restricted to plans focused on reducing worldwide environment adjustment.

As in various other researches in this collection, our main purpose is to educate decision-makers in the industrialized globe, specifically the United States. We focus on making use of grid-connected solar-powered generators to change standard resources of power. For the greater than one billion individuals in the creating globe that do not have accessibility to a dependable electrical grid, the price of small PV generation is frequently surpassed by the extremely high worth of accessibility to power for illumination and also billing mobile telephone and also radio batteries. On top of that, in some establishing countries, it might be financial to make use of solar generation to minimize dependence on imported oil, especially if that oil needs to be relocated by vehicle to remote generator websites. A buddy functioning paper reviews both these useful duties for solar energy in the establishing globe

How solar energy produces electricity?

Solar energy produces electricity by generating plentiful amounts of heat, which is directed through electrical conductors and transformed into electrical power. Solar heat collectors, cooling towers and photo-voltaic panels are all types of energy systems that use solar energy. Heat collectors and panels sit on rooftops and over large areas, and they are advantageously placed facing south, where the sun shines with the most power.

The sun produces quite a bit of heat throughout the year as its rays shine on the Earth’s surface. As the sun tracks across the sky, its light varies in duration and intensity, but the heat it produces is sufficient to transform into electricity that can powerhouses, offices, and industrial complexes.

Why is Solar Energy Important?

Solar energy is important because the sun is an infinite source of energy that can be used to power homes and businesses globally. Fossil fuels are a finite source of energy, so it’s important that alternative energy sources be embraced. The scientist is now saying that the burning of fossil fuels is responsible for global warming.

Solar energy is a prospective solution to the ecological problems being caused by relic fuels. These fuels are burned to generate electricity. They release unsafe conservatory gases into the environment. The huge majority of scientists believe that continuing to depend on fossil fuels is going to cause serious environmental problems in the future.

Emergency phones, satellite systems in remote places often use solar power as a dependable power source. Solar energy can also be used to power devices that run at night. Some streetlights are able to charge energy from the sun during the day and then run throughout the night.

Solar energy is very important for its use in satellites. Many satellites are engineered with photovoltaic panels, which capture sunlight and convert it into electricity that is used to power the satellite. Solar power is also useful in areas where standard electricity is not available. For example, houses and farm areas at remote locations depend on sustainable energy sources, such as the sun and wind turbines, harness power

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How is solar energy used today?

Solar energy is resulting from the sun with the help of solar panels. Solar energy is usually used to heat buildings or homes. Heating buildings or houses require more power than heating water in a building, so much larger panels are required to do this. If solar power is used to heat a building it can also heat the water in the building. Also, solar energy may be used for cooling. Solar heating compared to solar cooling, solar cooling is a lot more expensive.

Solar energy can also be converted into electricity. A lot of appliances are designed to use electricity so anyone who can generate electricity from the sun can run almost any appliance with solar power.

Of all the uses of solar energy, cars are the smallest amount suited for this type of energy. There are electric cars available that are partially driven by solar power, but it is unlikely that solar energy will power the transportation system in the near future.

What is solar energy advantages

Some of the disadvantages of solar energy are

  1. Use up a large amount of space
  2. Can be unsightly
  3. A large amount of money to power buildings
  4. Solar energy is still in developmental stages
  5. They can change the entire look of a home
  6. The panels can also cause serious health issues
  7. Lead and cadmium are necessary to power these panels and can be harmful if they are released from the panels

Solar Technology Trends

Some of the established players were building and opening new manufacturing plants, putting upward pressure on megawatt output numbers, but also driving up capital costs, which were obviously needed to put steel in the ground.

Before March 27th, it didn’t matter that SOLF was negotiating polysilicon contracts with Hoku Scientific (NASDAQ: HOKU). Or that their founder is a major name in the Chinese utility business, which will provide a good climate for negotiating grid-connected installations.

The company’s fourth quarter 2007 earnings had been delayed for some accounting issues but were due out the last week of March. I recommended buying SOLF at $9.40 per share to members of the Alternative Energy Speculator on March 17th.

From what I heard at a forum, I had a fairly good idea of which companies could provide nice returns in the near future. And, if you remember, many solar technology stocks had gone down with the broader market early in the year—so there were bargains to be had anyway.

Before March 27th, it didn’t matter that SOLF was negotiating polysilicon contracts with Hoku Scientific (NASDAQ: HOKU). Or that their founder is a major name in the Chinese utility business, which will provide a good climate for negotiating grid-connected installations.

Light-Sensitive Nanoparticles. Recently, a group of scientists at the University of Toronto unveiled a new type of light-sensitive nanoparticle called colloidal quantum dots, that many believe will offer a less expensive and more flexible material for solar cells. Specifically, the new materials use n-type and p-type semiconductors – but ones that can actually function outdoors. This is a unique discovery since previous designs weren’t capable of functioning outdoors and therefore not practical applications for the solar market. University of Toronto researchers discovered that n-type materials bind to oxygen – the new colloidal quantum dots don’t bind to air and therefore can maintain their stability outside. This helps increase radiant light absorption. Panels using this new technology were found to be up to eight percent more efficient at converting sunlight.

Notably, solar technological advances have not just come about due to solar research and development. In actuality, solar technological advances largely come about through increases in production. As with computers and many other technologies, as solar panel production goes up, manufacturing efficiencies are achieved, technological advancements are made, and solar technology costs come down. In other words, this trend is just starting — the cost of solar panels can come down much further, and it is projected to come down much further. However, an important thing to note is that there are numerous solar incentives available today that may not be available as solar costs come down in a few years. So, now is probably as good a time as any to go solar and save a ton of money!

Another area that has made solar PV technologies cost prohibitive compared to traditional fuel sources is the manufacturing process. Scientists are also focused on ways to improve the efficiency of how solar components are manufactured.

Solar Technology Advances

Magnesium Chloride. While over ninety percent of solar panels on the market today are comprised of silicon semiconductors, the key ingredient to converting sunlight into electricity, many believe the next generation of solar panels will be made of a thin film technology that uses narrow coatings of cadmium telluride in solar cells – this technology promises to be a much cheaper and more efficient way to engage the photovoltaic process. One major obstacle for cadmium telluride thin-film cells is that they become highly unstable during the manufacturing process, which currently uses cadmium chloride.

Researchers have devised a new, safe and seemingly low-cost way to overcome this hurdle by using a material called magnesium chloride in replace of cadmium chloride. Magnesium chloride is recovered from seawater, an abundant resource, which makes the resource very low cost, as well as non-toxic. Replacing the manufacturing process with this material promises to increase the efficiency of these solar cells from two percent to up to fifteen percent. Floating Solar. Another way to address land use concerns associated with wide-scale solar is to erect solar plants on the water since over 70% of the Earth’s surface is covered in water. Some researchers, including a French firm called Ciel et Terre, are experimenting with this technology. The company has projects set up in France, Japan, and England and other parts of the world are also piloting projects including a project in India and California in the U.S.

Solarix’s entire system performs best when supported by batteries that are specifically designed for them. Solarix Batteries have a unique deep cycle high-density plate technology. It provides superior reliability and longer life. Its low impedance design provides excellent charge acceptance capability. Solarix Batteries have no current limit control voltage-charging feature to give a longer life. Shockproof high impact reinforced case restrains bulging. Lead alloy corrosion-free connections provide maximum conductivity.

Solar Panel with Built-In Battery. In a project funded by the United States Department of Energy, Ohio State University researchers recently announced they created a battery that is 20% more efficient and 25% cheaper than anything on the market today. The secret to the design is that the rechargeable battery is built into the solar panel itself, rather than operating as two standalone systems. By conjoining the two into one system, scientists said they could lower costs by 25% compared to existing products.

Solar Windows

Solar control glass is a hi-tech item created by the glass market to enable sunshine to go through a home window or appearance while emitting as well as showing away a huge level of the sunlight’s warm. The interior room remains intense as well as much cooler than would certainly hold true if regular glass were made use of.

Solar control glass is not always tinted or mirrored glass, although such coatings can be obtained visual functions if wanted. It integrates unnoticeable layers of unique products on the glass which have the twin result of permitting sunshine in while driving away solar warm. Solar control glass devices are commonly dual polished, which implies they likewise protect well.

Check along the sides of tall towers, high rise or skyscrapers and all you see is glass. It is so much of glass which is now being used to produce solar energy.

This company SolarWindow™ coatings to the many vast acres of window glass on a tall tower, turning an entire building into a source of clean, renewable energy.

Orthodox solar systems cannot be applied in this way, and are instead limited to only a handful of square feet on overcrowded rooftops. These very small tower rooftops are often crowded with service systems such as heating, ventilation, air conditioning, and elevators.  These spaces are also expected to offer tenant-amenities such as rooftop gardens and pools, and other high-footprint features.

Customary solar also requires direct sunlight and cannot operate in shaded areas, a key advantage for SolarWindow™ applications where all four sides of a tower becomes a clean power-generator.

Significantly, engineers have designed and tested SolarWindow™ to generate energy from artificial light such as the fluorescent systems found inside offices, schools, and commercial buildings. Today’s solar systems do not perform well indoors or under artificial light.