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Solar Power

Solar power is the conversion of solar energy into electricity or thermal energy, either by indirectly using concentrated solar power or directly using photovoltaics – the use of solar panels which consist of various cells made of photovoltaic material.

3,946 Questions

What causes solar energy to increase or decrease?

Solar energy can increase due to factors such as clear skies, optimal sunlight exposure, and advanced solar panel technology. Conversely, solar energy can decrease due to factors like cloud cover, shading, and the position of the sun in the sky.

What is the process of capturing solar energy called?

The process of capturing solar energy is called solar energy harvesting or solar power generation. This involves converting sunlight into electricity or thermal energy using solar panels or other solar technologies.

Why silicon is used in solar panel?

Silicon is used in solar panels because it is a semiconductor material that can efficiently convert sunlight into electricity through the photovoltaic effect. Silicon is abundant, cost-effective, non-toxic, and has the right balance of conductivity and transparency needed for solar cell efficiency.

Can light be absorbed and transformed into heat?

Yes, light can be absorbed by certain materials and transformed into heat. When light is absorbed, the energy is converted into thermal energy, which can raise the temperature of the material. This process is commonly seen in objects like black clothing or asphalt roads that are heated by the absorption of sunlight.

If you have a 123 Watt 7 amp solar panel working on charging a 12 volt 225 amp hour gel battery how long will it take the solar panel to charge the gel batter?

You need to provide many more details.

So assuming that the panel voltage is reasonable, the panel is clean, it is sunny and the panel is pointed at the sun. Then it will take about 225/7 hours to charge the battery. About 300 hrs.

But in fact charging is only about 85% efficient (charge at 14 V get energy out at 12V or so).

This ups the charge time to maybe 350 hrs or so.

Charging can be improved by inserting a MPPT charger between the battery and the panel. This bit of electronics decouples the battery voltage and the panel voltage allowing the panel to be operated at its' most efficient voltage.

That might knock off 15% of charge time bringing you back to 300 sunny hours.

How are solar energy and wind differ from fossil fuels?

Solar and wind energy don't expel CO2 (carbon dioxide) into the atmosphere.

Fossil fuels do.

Also wind and solar energy are renewable energies. Fossil fuels will eventually run out.

How much heat is released from a candle?

This is a very vague question! How big is your candle? How long will you burn it for? Wax is a hydrocarbon, so in burning it you are breaking C-C bonds and C-H bonds, and forming new bonds in carbon dioxide and water - so you could do a calculation involving bond enthalpy data. But I don't think you meant your question that way. So.. how about this answer: 'Not much'. Things that burn with a yellow flame are not burning very effectively: the yellow flame is carbon particles that didn't get burned, glowing. If you hold a glass over your candle you will be able to collect all that as soot. Things that are burning blue are burning more efficiently and so producing more heat: they are using more oxygen too. If you have a gas boiler in yoru house it is important that the flame is blue not yellow. A yellow flame shows that your boiler is not getting enough oxygen to form carbon dioxide and will instead be producing carbon monoxide, which is poisonous. If you meant how hot is the flame, I'd guess about 600 degrees Celcius. A good roaring Bunsen flame is about 1800 degrees. anyone who knows specifically, please add to this answer!

Why is the energy pyramid called the energy pyramid?

because one predator eats prey for energy which causes a connection between the animals that they both eat has a connection now which is kind of a pyramid cause cant live without the other to find out more go to my facebook lucycamesimon@rocketmail.com

What are some characteristics of solar energy?

Solar energy is renewable, clean, and abundant. It does not produce greenhouse gas emissions or air pollutants, making it environmentally friendly. Solar panels can be installed on rooftops or in solar farms to harness the sun's energy for electricity generation.

How does sunlight differ from indoor fluorescent light?

Indoor fluorescent light is not as bright as sunlight, and it is usually not exactly the same color (although there are different types of fluorescent tubes that produce different colors, some of which are extremely close to sunlight).

Is solar energy a type of physical science?

Solar energy is a form of renewable energy that comes from the sun. While it is often studied in the context of physical science because it involves the interaction of light and matter, it is more accurately categorized as a type of renewable energy rather than a specific branch of physical science.

What is photovoltaic emergy?

Photovoltaics are direct energy conversion devices that convert electromagnetic waves (usually as thermal radiation from a high temperature source, like the sun) to electricity.

Emergy is defined as the energy required to supply the materials and manufacture a device that is somehow used to generate, harvest, or convert energy. For instance, as hydroelectric dam requires energy to bring the materials to the site, construct the dam, and install the various components.

In the case of photovoltaics, emergy is the energy required to collect and refine the materials (such as silicon and other semiconductors), to manufacture and assemble the units, and to distribute the devices. In the past, emergy estimates for photovoltaics have shown that the emergy of such devices is higher than the total output of the devices over the entire product life. This is still a topic of research and concern in photovoltaic research. It is also part of the reason that photovoltaics are difficult to make economically viable (particularly when compared to convectional electric generation systems).

How is solar energy transformed into other types of energy?

Solar energy can be transformed into other types of energy through photovoltaic cells, which convert sunlight directly into electricity. Solar thermal systems use sunlight to heat a fluid, which can then be used to generate electricity through a turbine or to provide heat for buildings or industrial processes. Both methods allow solar energy to be harnessed for various applications.

How can people shape the physical world?

If every person on earth were to, at one point in their life, plant a tree, begin to use solar panels for energy, purchase an electric car, use less chemicals and recycle, those actions would definitely have both a profound physical and atmospheric effect on our world. ........ Now that you have the answer, the next question should be, where do we begin?

How much solar energy does Jupiter receive per square kilometer?

Jupiter receives approximately 4.5 watts of solar energy per square kilometer, which is significantly less compared to Earth due to its greater distance from the Sun.

Why is it correct to say wind energy and solar energy are related?

solar energy creates high pressure systems that come from the poles high pressure systwms cause wind that blows from the North. they are global winds. We use global winds to make wind energy so it is correct to say that wind energy and solar energy are related

How does solar energy produce heat?

2 ways, in a solar collector the sun is concetrated to a focal point like burning things with a magnifying glass, witch is used to boil the water into steam and used to drive the generator. in a photo voltaic system heat is generated through resistance and is useless for the most part.

What does solar power generates electricity from what source?

Solar power generates electricity from the sun's energy through the use of photovoltaic cells. These cells absorb sunlight and convert it into usable electricity through a process called the photovoltaic effect.

Why is solar power better than burning fossil fuels?

Solar power is better than burning fossil fuels because it does not produce greenhouse gas emissions or air pollutants that contribute to climate change and harm human health. Additionally, solar power is a renewable energy source that is abundant and sustainable, unlike fossil fuels which are finite and contribute to resource depletion. Solar power also helps to reduce reliance on imported energy sources and promotes energy independence.

How strong is solar power?

That depends on total collection area and the collector efficiency.

If you could pave many square miles with high efficiency collectors you would have a very "strong" solar power system. If you only have a single 4 inch diameter solar cell it might not be able to power more than one flashlight bulb.

How is helium which is produced by the conversion of hydrogen into energy related to the solar core?

Helium is produced in the solar core through nuclear fusion reactions, which convert hydrogen into helium, releasing enormous amounts of energy. This process is crucial for the sun to maintain its energy output and support life on Earth.

How does the suns energy become your energy?

The sun's energy is harnessed by plants through photosynthesis, converting it into chemical energy in the form of sugars. When you eat plant-based foods or animals that have consumed plants, you obtain the stored solar energy, which your body then metabolizes to fuel your cells and provide you with energy.

How is energy transformed to other forms of energy?

In many different ways, depending on the specific type of energy transformation. Here are just a few examples:

  • A stone is thrown up, getting slower and slower. Kinetic energy is transformed into potential energy. On its way down, the same stone gets faster and faster again. Potential energy is transformed to kinetic energy.
  • Part of its kinetic energy is lost to friction. The kinetic energy is converted to heat energy.
  • When it strikes the ground, it makes a sound. Kinetic energy is transformed to sound energy. (However, you can expect most of the energy to be converted into heat energy.)

What kind of energy does Eon Energy provide?

Eon Energy provides several types of energy sources for their customers. They can choose between electricity only, gas only, dual fuel (gas and electricity), and solar panels.

Why is the use of solar cells limited in domestic purposes?

Firstly it can be utilised only during daytime. Secondly the availiability of special grade silicon for making solar cells is limited. Also the silver for interconnecting the cells in the panel increases the cost. We also need a battery to collect the generated electricity.