Essay About Energy Resources And Solar Energy

6 Energy Resources
6 Energy Resources
Anette Aatangen
Kim Bjoerklund
Sunniva Kristensen
Herman Skogvold
Sander Vunderink
Michiel van der Werf
Debby Koopmans
Renewable Resources
Everywhere we go there is energy around us. All animals, plants, humans need it to live. Also machines need energy to be able to work, and our lives are dependent on a lot of these machines. Nowadays we can’t imagine living without them. Though, if we continue using energy for these machines the way we do it now, we won’t be able to use them much longer. Because this energy is running out. We’re talking about electricity, which is mostly produced by three fossil fuels: coal, oil and gas. They are burned to heat up water. This produces steam, which makes a turbine move, which produces energy. This way of producing energy, causes that in the world every hour almost 1 million barrel of fossil fuels are burned, permanently. However, the stock of fossil fuels are running out. There is only enough coal in the world for another 300 years and oil and gas even for only another 50 years. This is not the only disadvantage of using these fuels. They are also causing serious damage to the environment. When they are being burned, they produce toxic gasses which appear in the form of acid rain. Some gasses also cause the greenhouse-effect. These facts are enough reasons for people to look for alternative energy resources. For instance nuclear energy. Some think this is a clean and safe alternative, but this has also disadvantages. There is also ways to use the energy from wind, water, biomass and the sun. These are durable energy sources. We are going to look deeper to each form of energy resource, and find out which ones of all of these are the best to use in our future.

Solar energy means light or heat energy that comes from the sun.
There are many ways to use solar energy, in fact every process
on earth has the sun as its starting point. But you can also transfer it into electrical energy with solar panels.
A solar panel is made up of several photovoltaic cells and these cells are connected together in series. When sunlight hits the solar panel it makes electrons in the cells move around just as in a electrical wire. The electrons flow through the wires which are connected to the solar panels and we get electricity.

To use electricity when its cloudy outside we attach batteries. When the
sun beams hits the panel the batteries charges.
This picture shows the basic of a solar panel:
A great advantage is that the sun is a renewable source. Yes, it will die eventually but this is so many years from now which we can’t oversee. So while the sun is ‘alive’, we can’t use up this resource like we can use up fossil fuels. Solar energy is being used in many ways and transfers from one thing to another like light transfers into heat.

The amount energy supplied by sun and wind in Norway is 25 295 kW/h per inhabitant. Using solar panels to get energy is not an economically a good investment here in Norway. They are really expensive and demand huge areas. In the Netherlands the use of solar energy is also very limited. Probably there are some buildings which use solar energy, but this number is so small, that in 2005, the percentage energy was 0,0%. The government is trying to stimulate the use of solar energy and recently new subsidizes are available for people who want to buy solar panels for their houses. However it is still an expensive and long term investment.

The source of fossil fuel is dead plants and animals. When plants and animals die their bodies decomposes and are buried under layers of earth. Pressure and heat changes that organic material and after millions of years it will be one of three forms of fossil fuel. Oil, natural gas and coal.

Oil is a thick, black liquid also called petroleum. To get the oil we dug deep into the ground and the oil will be between layers of rock. When we find an oil spot we pump it up and get raw oil. A refinery changes the oil into products like gasoline, jet fuel and diesel fuel. Its also burned in factories and power plants to make electricity. By burning the oil the generator turns around, so the heat and steam pushes the generator around, creating movement energy. As the generator goes