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Basically, the ‘Green Energy’ idea is how our everyday needs are supplied by natural resources such as wind, tides and even geothermal heat. They are considered ‘Green’ because they are environmentally friendly. 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.) But in the main, this is the process of utilising modern technology to provide eco-efficient and planet-friendly alternatives.

In the home environment, one can see examples such as Solar Thermal and Solar Water Heating Collectors. To gain electricity from roof panels you would need solar electrical panels (PV’s). Following on from this is a process known as Biomass Energy – which includes Boilers burning wood and other fuels. We now also have Ground Source Heat Pumps – which draw out the heat left by the Sun. Finally, we have two of the most traditional forms of energy generation that have gone through some resurgence over the last few years; these being Wind Power, Wind Turbines and Hydropower (including Water Wheels.)

Solar Energy Systems: Also known as Solar Energy, this mainly uses two, albeit different types of solar panels to get the desired results. Initially, there is the process of obtaining hot water from the Sun via Solar Water Heating Collectors. Furthermore, there are the Solar Electrical Panels (more correctly known as Photovoltaic heat collectors) which transform solar radiation into electricity. Obviously situated away from blockages such as chimneys etc., these Solar Panels need to be mounted on south facing roofs at an angle of 30 degrees from the horizontal.

In the UK, Solar Water Power is now one of the most sought after forms of Solar Energy. With the ability to provide almost half the annual need for hot water in the house, Solar Water heating systems are very important. The cost of fitting depends on whether you do it yourself (500 to 1500 pounds) or whether you get a professional fitter – in which case it will cost between 2-5k overall.

Biomass Energy Technology: This term encompasses all forms of natural products – such as plant and animal material. It is extremely useful – in that it can produce a range of power sources, including heat and electricity. It is interesting to note that the UK has some of the largest quantities of Biomass material to generate electricity within Europe. It should be borne in mind that the whole process is designed to produce energy without an impact on CO2. As each tree felled, it is replaced by another. This helps to reduce the overall effect on C02.

A process called Short Rotation Coppice (SRC), utilising trees such as Willow and Poplar, is used to meet the demands of such ‘Energy Crops’. Dry matter is also very sought after – and perennial grasses are a good source of this. Within this process also sits the lesser known Agricultural and Municipal Wastes. Agricultural Waste is commonly formed as a by-product of traditional agricultural work. Of equal importance is Municipal Waste, which comes from recycyled wood and food.

Geo-Thermal Energy: Basically this is the warming of the Earth from the Sun – and is often used in the manufacture of warm water and electricity. By using the ground source temperature of approximately 12 degrees, we can either heat or cool buildings within the UK. With four units replaced for every one unit of energy used, these heat pumps are very effective. Utilising the energy generated from wind turbines and solar electrical panels alongside heat source pumps, can make them alomst 100 percent renewable.

Wind Energy: The use of wind as a source of energy has been going on for thousands of years, especially in milling grain and pumping water. 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. The UK is considered as one of the best sources of wind generation within Europe. It is interesting to note that whilst we can produce 10 percent of our entire power requirement from wind power, at present we only produce 1 percent. Instead of producing electricity at a rate of 2-10p per kWh, we could be generating at 2p per kWh. From this, the estimation of the cost recovery period is around 6-9 months overall.

Hydropower is a method that suits the UK energy production system. The field of using moving water to release energy is a very old technique – albeit we now do this in new ways. It is this type of energy production that could meet 2 percent of all the UK’s demand.

The Hydropower process uses a turbine that can convert the energy from one form into another. The important thing is that, without having to rely on water storage, the turbines can generate electricity. It is by using the eroded national distribution systems, that allows for outdated sluices and dams to be used by techniques known as ‘Micro-Hydro’. This smaller form of electrical output has been recently reviewed and could allocate some 200MW of capacity to the UK system. The capital cost of installing a micro-hydro system can run between 200 and 3000 pounds per kW of energy output.

Because of the energy need of the Western World, we are now seeing a rapid rise in ‘Green Energy’. Within the UK and mainly the domestic sector, we are well placed to take advantage of the schemes above.

Once again, it is the Electrician and Plumbing trades that are set to capitalise on the domestic installation process. Grants and financial aid is also set to increase within the EEC and the UK – as ‘Green Energy’ gets ever higher status. As a new industry, there are a range of new certificates to gain. To cover both ends, you could consider electrical or plumbing training along with green systems.

Copyright 2009 S. Edwards. Look at Solar Energy Training or electriciancoursesuk.co.uk/Solar-Energy-Courses.html.