In a nutshell, 'Green Energy' utilises natural resources such as sunlight, wind, tides and geothermal heat to provide our daily energy requirement. They're all considered naturally able to replenish and thereby 'Green'. The older energy skill sets often have value set in times gone by especially when we think of wind power and windmills. This option is preserved by the use of technology, eco-efficient options and planet friendly alternatives.
Solar Thermal and Solar Water Heating Collectors are examples of what can be used in the house as part of renewable energy technologies. Following on it is items such as the Photovoltaic Panels (PV's) that develop electricity through suitable roof-panels. Another key element is that of Biomass Energy, which relates to Stoves and Boilers burning Wood, Fuel and Pellets. There is the old heat from the Sun now known as Ground Source Heat Pumps. When we think about Wind Power and Hydropower we have two of the more habitual forms of energy generation.
For those wanting to train in this area we will expand on each section and cover off some of the skills required. Thinking about the issues already, this is definitely of interest to those in the field namely Plumbers, Electricians and Gas engineers. Checking out the pages on Electricity, Green and Plumbing careers would also help gather as much information as possible. CTRL-D this site now so that you can come back later and look at the links and adverts of relative training providers.
Thermal Solar Energy - Often commonly referred to as Solar Energy, this is primarily captured by two types of solar panels; each of which utilises different technologies for the process. As a first draft there are elements absorbing energy from the sun and creating hot water known as Solar Water Heating Collectors. Furthermore, there are the Solar Electrical Panels more correctly known as Photovoltaic heat collectors which changes solar radiation into electricity. To get best results these panels need to be situated 30 degrees from the horizontal, on a south facing roof and obviously free from blockages such as trees and buildings.
Within Solar Energy overall, Solar Water Power is now commonly used in the UK. Solar Water heating systems can provide over 50 percent of a household's hot water requirement during the year. The average cost of installing this type of equipment is expected to range from 500 to 1500 pounds for a DIY system, through to 2-5k for a professionally installed system.
Systems Utilising Biomass Energy: Although in the modern world this now includes 'Energy Crops' it also takes in suitable plant and animal substances. Due to its adaptability it can produce a range of energy forms from heat and electricity through to combinations of both. It is interesting to note that the UK has some of the largest quantities of Biomass material to generate electricity within Europe. One of the main factors of this style of energy is the result without the impact on C02. With each tree being planted as another is felled you can see how the C02 produced during heating is minimised and why the system is deemed sustainable.
'Energy Crops' such as Willow and Poplar play a major part in the process under the banner of Short Rotation Coppice (SRC). Of equal importance is the ability to produce dry matter and perennial grasses are very good for this. Equally significant within this practise sit Municipal and Agricultural waste products. To begin with Agricultural Waste is often produced as part of the agricultural process overall. Whereas Municipal Waste is derived from wood or food and can be used for biomass energy.
Systems Based On Geo-Thermal Energy: Used in the generation of warm water and electricity this energy mainly comes from the Sun and heats the Earth. Having a consistent ground temperature of around 12 degrees centigrade is fortunate for the UK as it allows both the heating and cooling of buildings. 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: When you consider the milling of grain and pumping of water it is easy to see how long wind energy has been with us. However, in more recent times there's been the option to recover the energy for its own sake - and deliver this either to a home unit or to the local power grid. With regard to wind generation it is the UK that has the highest production within Europe. The fact remains that in the UK there exists the ability to realise 10 percent of our electricity requirement from wind power as opposed to the current value of 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. Recovery of the cost involved is somewhere between 6-9 months.
Within the UK, Hydropower is an energy process that suits the energy generation model. The ability to utilise energy from moving water, much like wind power, has been going on for thousands of years. That said, this type of energy can generate around 2 percent of the total electrical demand for the UK.
By using a turbine a Hydropower system can transfer the kinetic energy of moving water into another form. By using a dam or a natural river process these turbines do not require water storage. Alternatively 'Micro-Hydro' systems use hitherto outdated sluices and dams to generate electricity. This process alone could meet 200mW of the UK requirement. When considering the install cost of items such as this it is worthwhile to think about the return which rests somewhere between 200 pounds and 3k per kW of energy created.
It is down to the worldwide energy requirements that sees the growth in 'Green Energy'. Considering this schemes laid out above the UK domestic market appears to be one of the core beneficiaries of this technology.
With the bulk of development work in the domestic field both the Plumbers and Electricians are set to capitalise in this area. You can now get a range of grants to support the growth of renewable energy ideas within the European market. Equally important is the role of gaining qualifications to install items that we have talked about. By mixing green training with those of electrical or plumbing you could cover both angles.
Copyright 2009 S. Edwards. Go to www.plumbercourse.co.uk/Solar-Training.html or Green Certification.
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