Centre-based Practical Courses For Green Energy - Updated
Basically, the 'Green Energy' idea is how our everyday needs are supplied by natural resources such as wind, tides and even geothermal heat
. Collectively they are thought to be 'Green' because they are ecologically sound and easy to replace. It's interesting to note that in some instances we're actually travelling back in time to utilise some of the older energy skill sets e.g. Wind Power (Windmills etc.) Regardless of this, we are mainly talking about using modern techniques to offer planet friendly and eco-efficient solutions.
The home environment, for example, encompasses a range of energy ideas - including Solar Thermal and Solar Water Heating solutions. Equally there is electricity that is generated through roof-installed panels. Then there are Stoves that burn Bio-Pellets - which make up the subject commonly known as Biomass Energy. We now also have Ground Source Heat Pumps - which draw out the heat left by the Sun. Lastly, there are two of the more historical forms of energy production - namely Wind Turbines and Hydropower.
Thermal Solar Energy Systems: Also known as Solar Energy, this mainly uses two, albeit different types of solar panels to get the desired results. As a first strategy, we have Solar Water Heating Collectors - which basically creates hot water from solar energy. Then we have the work of the Photovoltaic Heat Collectors, often called Solar Electrical Panels - which transform solar radiation into electricity. Typically, these panels are found on roofs - and need to be away from any light blocks such as trees, chimneys and other buildings.
Within Solar Energy overall, Solar Water Power is most commonly used in the UK. Solar Water heating systems can meet the need for more than half of all hot water needs in the domestic market. Getting a professional fitting will cost around 2-5k, however, doing the job yourself could make it as low as 500 to 1500 pounds in total.
Biomass Energy: Including all natural energy forms derived from plant and animal products - such as wood, straw, poultry litter and 'energy crops'. As such, this is a very versatile material and can be engineered to produce heat, electricity and a combination of heat and power in the form of electricity. It is interesting to note that the UK has some of the largest quantities of Biomass material to generate electricity within Europe. The lack of C02 given out by this form of energy is another positive element in the whole process. Because the system often involves one tree being planted as another is felled, many wood crops are deemed to be sustainable sources.
A process called Short Rotation Coppice (SRC), utilising trees such as Willow and Poplar, is used to meet the demands of such 'Energy Crops'. Perennial grasses are also responsible for large quantities of dry matter. Other less known materials within this field are Agricultural and Municipal Waste. One natural offshoot of agricultural work is Agricultural Waste. Municipal Waste such as food or wood can also be utilised as a biomass product.
Geo-Thermal Energy Systems... Used in the generation of both warm water and electricity, this energy mainly comes from the Sun and heats the Earth. Heating or cooling properties in the UK can be achieved using the ground source heat temperature of around 12 degrees centigrade. With four units replaced for every one unit of energy used, these heat pumps are very effective. This system can go even further - if energy efficient items such as wind turbines or solar electrical panels are used.
Wind Energy - An Update On Old Technology: The use of wind as a source of energy has been going on for thousands of years, especially in milling grain and pumping water. Whether to your home or to a local grid, when the energy has been generated it must be delivered to a point of usage - and cannot be stored. In the European union, it is the UK which is seen to have the largest wind capacity. Potentially, we can produce 10 percent of our annual energy needs through wind power, although at present within the UK we still only use 1 percent. Frankly, electricity can be realised from as little as 2p per kWh - as opposed to the current level of 2-10 p per kWh. Therefore, recovery of cost takes approximately 6-9 months overall.
Finally, we have Hydropower; an area in which the UK does well within Europe. Just like a thousand years ago, we are utilising the energy from water. That said, this type of energy can generate around 2 percent of the total electrical demand for the UK.
A hydropower system transforms the kinetic energy of the moving water into another type of energy by means of a turbine. The important thing is that, without having to rely on water storage, the turbines can generate electricity. A 'Micro-Hydro' system creates energy through the use of dams and sluices (that are no longer a part of the national distribution system.) Having been reviewed recently, this form of electricity supply could provide 200mW of the UK capacity. Between 200 pounds and 3k per KW of energy output, is a good estimate of the overall cost of a project such as this.
'Green Energy' is growing - mainly due to the demands of the Western World. The UK is very well placed to provide most of the schemes set out above, and the UK domestic market again is one of the key beneficiaries of this technology.
With the bulk of development work in the domestic area, both Plumbers and Electricians are set to capitalise in this area. With 'Green Energy' rising up the political agenda in Europe, a range of financial aids and grants are becoming available. It is by gaining the right certificates that will provide opportunities and job security for the long term. To cover both ends, you could consider electrical or plumbing training along with green systems.
by: Jason Kendall.
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