February 24th, 2010Uncovering Green Engineer Certification – Straightforward Advice
In a nutshell, ‘Green Energy’ utilises natural resources such as sunlight, wind, tides and geothermal heat to provide our daily energy requirement. ‘Green’ basically means that all the energy is renewable. It is easy to think that we may be travelling back in time when we think of items such as wind power and windmills. Overall, this is the method of using modern techniques to provide eco-efficiency and planet friendly options.
The home environment, for example, encompasses a range of energy ideas – including Solar Thermal and Solar Water Heating solutions. It is equipment such as Photovoltaic Panels (PV’s) that develop electricity through suitable roof-panels. Then there are Stoves that burn Bio-Pellets – which make up the subject commonly known as Biomass Energy. There is also the ground heat from the Sun – now known as Ground Source Heat Pumps. Not all ‘Green Energy’ is new – by considering Wind Power and Hydropower we are looking at some of the oldest forms of energy production.
Solar Thermal Energy – 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. Then we have the work of the Photovoltaic Heat Collectors, often called Solar Electrical Panels – which transform solar radiation into electricity. To get the best results these panels need to be south facing at an angle of around 30 degrees from horizontal, and away from blockages.
In the UK, Solar Water Power is now one of the most sought after forms of Solar Energy. With the capacity to deliver 50 percent plus of a household’s hot water requirement annually, Solar Water heating systems are crucial to energy in the UK. 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 Technology: In the modern world this now includes genetically engineered ‘Energy Crops’ – but it also takes in natural plant and animal substances. It is by using these materials in new ways to create energy that makes it so exciting. It is a useful point to make that the UK is one of the major producers of Biomass fuels within Europe. The lack of C02 given out by this form of energy is another positive element in the whole process. With a new tree being planted as each is felled, you can see how the C02 produced during heating is minimised – and why the system is deemed sustainable.
By the growth of Short Rotation Crops (SRC), the UK is able to maximise the ‘Energy Crops’ return overall. Dry matter is also very sought after – and perennial grasses are a good source of this. Municipal and Agricultural waste products are both little known, but essential materials to this field. Agricultural Waste is commonly formed as a by-product of traditional agricultural work. Another biomass source is that of municipal waste – and this comes from recycled wood or food.
Systems Based On Geo-Thermal Energy: The constant energy of the Sun heating the Earth results in both warm water and electricity being produced. 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. Whilst these heat pumps require energy to operate, their rate of return is excellent – being four units produced for every one unit used. A greater return of energy (sometimes almost 100 percent) is produced – because heat source pumps can operate in-line with wind turbines and solar electrical panels.
Wind Energy – An Update On Old Technology: In use for milling grain or pumping water, wind energy has been with us for a very long time, although its modern uses are complex. Recently though, there has been the trend to generate energy and deliver this onto the local grid. In the European union, it is the UK which is seen to have the largest wind capacity. 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 just 1 percent. Overall, electricity could be generated from as low as 2p per kWh – instead of the current 2-10 p per kWh. Therefore, recovery of cost takes approximately 6-9 months overall.
Then there is Hydropower – something within Europe that the UK excels in. 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.
A hydropower system transforms the kinetic energy of the moving water into another type of energy by means of a turbine. It is by either water ‘drop-offs’, or Natural River runs, that turbines can work through this process. ‘Micro-Hydro’ however utilises old outdated sluices and dams. 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.
Because of the energy need of the Western World, we are now seeing a rapid rise in ‘Green Energy’. To be fair, the UK domestic market is actually leading the resurgence, with a variety of schemes.
Electrician and Plumbers are thought to be key in providing expertise during domestic installations. Grants and financial aid is also set to increase within the EEC and the UK – as ‘Green Energy’ gets ever higher status. This is a new industry – but getting the right certification can only improve job security and opportunities for the future. Electrical or plumbing training that incorporates green technology could be very useful for the future.
(C) 2009 Scott Edwards. Pop to Green Engineer Training or plumbingcourseinfo.co.uk/GreenEngineerCourses.html.