Way to Save Electrical Energy
at School as a Student
What is Electrical Energy?
How can electricity be stored?
Electricity in relatively small amounts can be stored in batteries and capacitors for a time. However, the power we use everyday are not stored. What happens to the electricity that is produced by power plants, it is not stored but is simply a potential in the line like the water supply. Although electricity we use everyday seem enormous, 30% of the power is lost just from delivering the energy to the houses.
How much power do you get from solar panels?
The efficiency of a panel determines the area of a panel given the same rated output. Only 20.1% of the solar energy is converted into electrical energy, and that is the best technology out there. Therefore, not every soalr panels converts 20.1%. However, during the past first two years, our solar array produced an average of about 10.3 kilowatt hours per day in Toronto.
How much of electricity used at school?
The amount of electicity used in our beautiful school is way too large to even find out. Just a light blub uses about 100 watts. In addition, hundreds of other devices in school needs electircity. Such as, computers, printers, air conditioner, lught bulb, and much more. It should pass more then thousand of kilowatts a day. That would be a lot of money.
Solar Panels
Solar panels use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The majority of modules use water-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The structural member of a module can either be the top layer or the back layer. Cells must also be protected from mechanical damage and moisture. Most solar panels are rigid, but semi-flexible ones are available, based on thin-film cells. These early solar panels were first used in space in 1958. In fact, photovoltaics -- which were once used almost exclusively in space, powering satellites' electrical systems as far back as 1958 -- are being used more and more in less exotic ways.
How is works -- Photovoltaic Cells: Converting Photons to Electrons
Photovoltaic cells are made of special materials called semiconductors such as silicon, which is currently used most commonly. Basically, when light strikes the cell, a certain portion of it is absorbed within the semiconductor material. This means that the energy of the absorbed light is transferred to the semiconductor. The energy knocks electrons loose, allowing them to flow freely.
More Panels more Money!!! saved
This is a seductive promise, because on a bright, sunny day, the sun's rays give off approximately 1,000 watts of energy per square meter of the planet's surface.
Use of solar panel
Solar panel is almost can be used anywhere. In space, satelines use large solar panels to generate electricity from the sun. In everyday life, calculators uses solar energy to power itself.
Advantage of using solar energy
Infinite Free Energy --
Another advantage of using solar energy is that beyond initial installation and maintenance, solar energy is one hundred percent free.
Solar doesn’t require expensive and ongoing raw materials like oil or coal, and requires significantly lower operational labor than conventional power production.
Lower costs are direct as well as indirect – less staff working at the power plant as the sun and the solar semi conductors do all the work, as well as no raw materials that have to be extracted, refined, and transported to the power plant.
Advantage of using solar energy
No green house gases --
The first and foremost advantage of solar energy is that it does not emit any green house gases.
Solar energy is produced by conducting the sun’s radiation – a process void of any smoke, gas, or other chemical by-product.
This is the main driving force behind all green energy technology, as nations attempt to meet climate change obligations in curbing emissions.
Website: http://exploringgreentechnology.com/solar-energy/advantages-and-disadvantages-of-solar-energy/
Advantage of using solar energy
Solar jobs --
A particularly relevant and advantageous feature of solar energy production is that it creates jobs.
The EIAA states that Europe’s solar industry has created 100,000 jobs so far.
Solar jobs come in many forms, from manufacturing, installing, monitoring and maintaining solar panels, to research and design, development, cultural integration, and policy jobs.