Solar Power

Thermal energy increases the kinetic energy of the particles within matter, causing them to vibrate and move faster. This in turn leads to an increase in temperature and can cause changes in state (e.g. melting, boiling).

Yes you can ship PV panels. However it makes sense to buy cells (collected together these make a PV panel), locally.

It costs energy to make the panels as well as transport them. They will also be harvesting energy over a 20-30 year lifespan. It makes sense to try and keep the environmental costs as low as possible in producing and transporting them to maximise the amount of energy gained overall.

Years ago the bulk of PV panel production occured in Japan, USA and Germany. Whilst this is still largely the case, other countries are starting up production.

It is a common myth that it takes more energy to make a panel than it will harvest in its life time. Now it is generally estimated that a panel will pay for itself in energy terms in between 2-4 years Yes you can ship PV panels. However it makes sense to buy cells (collected together these make a PV panel), locally.

It costs energy to make the panels as well as transport them. They will also be harvesting energy over a 20-30 year lifespan. It makes sense to try and keep the environmental costs as low as possible in producing and transporting them to maximise the amount of energy gained overall.

Years ago the bulk of PV panel production occured in Japan, USA and Germany. Whilst this is still largely the case, other countries are starting up production.

It is a common myth that it takes more energy to make a panel than it will harvest in its life time. Now it is generally estimated that a panel will pay for itself in energy terms in between 2-4 years

Solar energy helps us by providing a renewable and sustainable source of power that reduces our reliance on fossil fuels, lowering greenhouse gas emissions and combating climate change. It also helps to decrease electricity bills and create jobs in the solar industry. Additionally, solar energy can improve energy security and resilience by distributed energy generation.

Wind power does not harm the envoirment

no fossil fuels are burned in the making of energy with wind power = ] i think haha

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They are non-polluting, renewable and efficient. Not only does the use of renewable energy sources help reduce global carbon dioxide emissions, but they also add some much-needed flexibility to the energy resource mix by decreasing our dependence on limited reserves of fossil fuels. The wind turbines can effectively generate energy as electricity for free as long as the wind is available. The wind is free and renewable, which gives an advantage compared to the contaminating fossil fuel that have already done damage to the earth's ecology.

Wind turbines will also start to make a profit if used commercially.

Unlike fossil fuels, after you've paid for the turbine they start to make energy which can be sold on to the nation grid for example. In time the amount paid for the turbine would have been recovered and then you're making money using the free energy of the wind. Cool!

Solar AKA photovoltaic cells turn (sun) light into electricity.

I cant answer this question fully.

However I do know that mass produced PV panels generally reach around 12-16% efficiency. It is possible to reach far higher efficiencies but not on a mass produced basis, so high efficiency PV cells only tend to make it onto special projects such as space flights, record breaking solar powered vehicles etc etc.

Solar thermal panel efficiencies can hit over 90%, but it is a question then of how much energy is lost from the point of generation to where it is distributed. A solar thermal plant works in an entirely different way to a domestic panel system, so this is not strictly relevant to your question!

You can't ascribe it to any one person. The first reactor was built and demonstrated by Enrico Fermi during the WW2 Manhattan Project, but this was in connection with plutonium production and not power production.

During the 1950,s reactors were built in the UK (Magnox type) which had a dual purpose, plutonium and power generation, and similar ones were built in France soon after. In the US the main concern then was to get reactors into submarines, and the PWR type was developed for that purpose, then larger ones were built for power production. All these schemes involved large teams of scientists and engineers, they were too large in scope for individuals.

Air/wind can turn a fan or windmill that is connected to a generator in the same way that water is converted to steam in order to turn a turbine. Air, and more specifically wind, is used to power windmills, that cause a turbine to turn, and generate electricity.

In a steam train, the energy transformations start with burning fuel (such as coal or wood) to heat water in a boiler, converting water into steam. The steam then expands in a cylinder, pushing a piston and driving the locomotive's wheels, which converts thermal energy into mechanical energy to move the train.

Electricity is the most versatile form of energy due to the following reasons:

1. It is easy to produce heat from electricity. Simply passing current through a wire produces heat. Although this is undesirable most of the time, some applications like induction heating, arc wielding use the heating effect of current.

But it is not possible to obtain electricity by simply heating a metal, unless we use a thermocouple.

2. We can convert electrical energy to mechanical energy without much losses. Typically motors that are use for commercial and industrial purposes have nominal minimum efficiency of atleast 75%. But even the most fuel efficient heat engines have an efficiency of about 30-35%. This is because of the heavy losses that occurs during the conversion process. Only a fraction of the heat released during each combustion cycle is use for the expansion of gases.

3. Modern day communication utilizes electricity as its lifesource. Electromagnetic waves are generated by passing a alternating current of various frequency to generated EM waves.

The ultimatum is delivery by the efficiency of electricity. All electrical systems have high efficiency meaning less losses. But this is not the case in other forms of energy.

according to law of conservation of energy

energy can neither be created nor be destroyed but can be converted from one form to another.

or

when a process occurs then before,during and after the process,the amount of energy of the universe remain same.

PROOf:-

consider a body of mass m which is at rest at point A and at height h from ground.

The total energy of the body at point A will be..

T.E=K.E+P.E

therefore..K.E=0

P.E=mg

T.E=0+mgh

or T.E=mgh

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Heat energy from the Sun causes the variety of weather patterns responsible for creating winds, including "prevailing" winds which are used for locating and powering wind generator "farms."

Sunlight is typically measured in units of irradiance, which is the amount of power received per unit area, often expressed in watts per square meter (W/m²). Another measurement used for sunlight is illuminance, which is the amount of light perceived by the human eye and is measured in lux.

Most microphones sold today are "dynamic" microphones. They contain a tube (known as a coil former) with a coil of wire wrapped around it, a magnet inside the coil former, and a diaphragm glued to one end of the coil former. The diaphragm moves the coil former back and forth across the magnet; as it moves, electricity is generated in the coil.

Photovoltaic energy is the conversion of sunlight into electricity. A photovoltaic cell, commonly called a solar cell or PV, is the technology used to convert solar energy directly into electrical power. A photovoltaic cell is a nonmechanical device usually made from silicon alloys. When light strikes these silicon alloys, it frees electrons which can be collected onto attached conductive plates.

A solar panel is a device that converts sunlight into electricity using photovoltaic (PV) cells. These cells are made of semiconductor materials that generate a flow of electricity when exposed to light. Solar panels are used to harness renewable energy from the sun for various applications such as powering homes, businesses, and satellites.

Think about what happens in a hydroelectric plant. The potential energy in the water is called 'potential' because the water has a place to go-- down. As the water falls it gains more and more kinetic energy. What is the water made to do before it's released? It passes through huge turbines and it makes the turbines spin. It's the spinning of the turbines that generates electricity. The kinetic energy of the water is converted to electricity.

A large mass of air moving over the landscape represents a considerable amount of energy. By building devices that will spin when the wind blows, it is possible to harness some of that energy. Most modern wind turbines are several hundred feet high, with propellers that have 3 blades, each one about 150 long.

Solar screens are very simple in design, they block radiation and heat. If your windows do not heat up, then your air conditioning system doesn't cycle on as often, and your electric bill goes down. This prolongs the life of your air conditioning system. For a small one time investment, solar screens make a lot of sense. Most people recoup their investment in just a few years.

Solar screens really work and they are affordable.

Solar Power works when the sunlight carries energy down to earth. This energy is called photons. When the photons strike the semiconductor in the solar panels, electrons from the material itself get knocked out to form an electric current. This is electricity that people can use every day! Electric meter literally runs backwards when you are producing net energy and forward!!

1.Convert Sunlight Into DC Electricity:

Solar panels are mounted on your roof and convert sunlight into DC electricity that flows to an inverter.

2.Inverter Creates AC Electricity:

Inverters convert the direct current (DC) power into alternating (AC) power that your home can use.

3.Spin Your Meter Backwards:

You'll still have utility power when you need it. Any excess electricity will be delivered to the grid for a credit.

1. The wind is free. Fossil fuels cost money.

   Once the initial costs of building wind farms and attaching them to the grid are paid usually within a couple of years, there are fairly minor maintenance costs for the 20 to 25 year lifespan of the wind farm (at which point it is usually replaced with bigger, modern wind turbines). Fossil fuel generation, by comparison, depend on a steady supply of coal or natural gas, which has prices which vary substantially in the short term, but are steadily trending higher on a longer time frame. In many places, wind energy is in the range of 5-6 cents USD per kilowatt hour, on par with or cheaper than direct costs of coal energy, and much cheaper when approximately 18 cents of negative impacts from coal are added in.

2. Wind energy provides carbon-free energy. Fossil fuel energy contributes massive amounts of carbon to the atmosphere.

   Wind energy has a net CO2 balance which is every positive. There are CO2 production costs associated with mining, refining, manufacturing, transport and installation, but these are outweighed by the massive amounts of carbon-free electricity generated over the lifespan of the wind turbine. Fossil fuels, by comparison, release greater than their weight in CO2 when they are burned; burn a megaton of coal, get two megatons of CO2.

3. Wind energy does not emit particulate pollution which kills people. Fossil fuel generation emits particulate pollution which kills people and harms the environment.

   Wind energy does not emit particulate pollution except for minimal amounts in construction. Fossil fuels, on the other hand, are basically burnt with resulting smoke and ash. Smoke and ash get into the atmosphere even with expensive scrubbing. One estimate indicated that coal kills 13,000 people in the US annually alone, and other has over 100,000 direct coal deaths in mining and transport in the 20th century.

4. Wind energy does not pollute water and kill fish. Fossil fuels pollute water and kill fish.

   Wind energy is a net positive for ground water, and has no impact on rivers, lakes or oceans, except providing ore fish habitat when they are installed offshore. Fossil fuels frequently enter ground water, lakes, rivers and oceans directly in spills, or indirectly through air pollution. Acid rain is directly caused by coal generation.

5. Wind turbines make good tourist attractions. No one pays to see fossil fuel generation plants.

   Many places including Japan, Atlantic City and Palm Springs, Nevada have a steady influx of tourists drawn in part by their wind turbines. The same can't be said for coal plants or natural gas generation plants. Rather, the obvious can be stated: people who live near them pay to get away to places with cleaner air.

Two names for the sun's energy are solar energy and sunlight.