In a nutshell, ‘Green Energy’ utilises natural resources such as sunlight, wind, tides and geothermal heat to provide our daily energy requirement. They are considered ‘Green’ because they are environmentally friendly. It is easy to think that we may be travelling back in time when we think of items such as wind power and windmills. However, it is the result of eco-efficient and planet friendly options that this process is maintained.

The home can use a range of new ideas to help with energy usage – including Solar Thermal and Solar Water Heating Collectors. Equally there is electricity that is generated through roof-installed panels. A further factor revolves around stoves and boilers – which are known as Biomass Energy. There is also the ground heat from the Sun – now known as Ground Source Heat Pumps. Considering items such as Wind Power and Hydro Turbines, we are finally getting to very old forms of energy production.

Solar Energy Systems: Often called Solar Energy, this is fact based on two types of solar panels each using different ideas to get their results. Initially, there is the process of obtaining hot water from the Sun via Solar Water Heating Collectors. Additionally, there is the method of converting solar radiation into electricity known as Photovoltaic – or simply Solar Electrical panels. Solar Panels themselves need to be away from all light blocks, and should be on south facing roofs at angles of 30 degrees from the horizontal plane.

For the UK, this is often considered the most popular form of ‘Green Energy’. 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: This term encompasses all forms of natural products – such as plant and animal material. Considering its ability to produce energy in the form of heat and electricity, this type of energy is extremely flexible. Furthermore, within the European Markets, the UK is one of the central producers of Biomass fuels. One of the main factors of this style of energy is the result without the impact on C02. To that end, many wood crops come from sustainable sources (as one tree is felled, another is planted in its place; thus the new tree absorbs the CO2 produced during the heating process.)

By the growth of Short Rotation Crops (SRC), the UK is able to maximise the ‘Energy Crops’ return overall. Of equal importance is the ability to produce dry matter – and perennial grasses are very good for this. Of equal importance, although maybe less well known, are Municipal and Agricultural Waste. One natural offshoot of agricultural work is Agricultural Waste. Because it comes from food or wood, Municipal Waste is also considered a useful biomass product.

Systems Based On Geo-Thermal Energy: By naturally heating the Earth, the Sun has the potential to generate both warm water and electricity. Using the ground temperature of around 12 degrees in the UK – we can both heat and cool buildings. These heat pumps do need some power to operate; but for every one unit of energy they use, they generate four units of energy in return. This system can go even further – if energy efficient items such as wind turbines or solar electrical panels are used.

Systems Based On 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. 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. To be fair, the UK has the highest level 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. Rather than electricity production running at 2-10 p per kWh, it could be run at 2p 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. The ability to utilise energy from moving water, much like wind power, has been going on for thousands of years. 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. It is by either water ‘drop-offs’, or Natural River runs, that turbines can work through this process. ‘Micro-Hydro’ utilises a chunk of the outdated sluices and dam systems that have been killed off by the large national distribution methods. Whilst considered a smaller form of electrical output, this system is thought to be able to give some 200mW of capacity to the UK. Between 200 pounds and 3k per KW of energy output, is a good estimate of the overall cost of a project such as this.

It can be seen that the route to ‘Green Energy’ is growing considerably, especially in light of the need for increasing energy outputs throughout the Western World. The UK domestic market appears to be one of the core beneficiaries of this technology.

It is the drive for installations in the domestic sector that looks to favour jobs such as plumbers and electricians. With EEC and UK recognition of renewable energy getting ever-higher on the political agenda, the grants and financial aid for introduction of these systems can only increase. It is by gaining the right certificates that will provide opportunities and job security for the long term. Look for combined electrical and plumbing training, with a key emphasis on practical green systems and installation.

Copyright 2009 S. Edwards. Browse around CLICK HERE or Renewable Energy Certification.

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