Comparing Renewable Energy Courses (UK) Across The UK
Saturday, February 20th, 2010It is the use of tides or wind to deliver our daily energy needs that form ‘Green Energy’. Collectively they are thought to be ‘Green’ because they are ecologically sound and easy to replace. The older energy skill sets have had value for years, especially when we think of wind power and windmills. Generally, this is the result of using up to date ideas, specifically those that are planet friendly and eco-efficient.
In the home environment, one can see examples such as Solar Thermal and Solar Water Heating Collectors. It is equipment such as Photovoltaic Panels (PV’s) that develop electricity through suitable roof-panels. Equally important is that of Biomass Energy – which includes Stoves, Fuel, Pellets and Boilers burning Wood. Of course, then there is the heating from the Sun – often just called 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.
Thermal Solar Energy Systems: Typically referred to as Solar Energy this is mainly made up of two types of Solar Panels – each using different methods to achieve similar 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. 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.
Within this discipline, Solar Water Power is often regarded as the most popular form of Solar Energy within the UK. Solar Water heating systems can provide over 50 percent of a household’s hot water requirement during the year. 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 Based Systems: 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. Indeed, within the European Markets, the UK has some of the leading levels of Biomass material at hand. It is the minimal C02 produced, alongside the actual energy production, that makes this attractive to the markets. Much of the UK wood crop is sustainable, in order to ensure that C02 produced during any heating process is absorbed.
To meet the need, fast growing trees, known as Short Rotation Coppice (SRC) are utilised. Of equal importance is the production of perennial grasses – because of their yield of dry matter. Whilst Agricultural and Municipal waste may be lesser known, they are essential to the whole process. To begin with, Agricultural Waste is often produced as part of the agricultural process overall. Because it comes from food or wood, Municipal Waste is also considered a useful biomass product.
Systems Using Geo-Thermal Energy – The constant energy of the Sun heating the Earth results in both warm water and electricity being produced. Using the ground temperature of around 12 degrees in the UK – we can both heat and cool buildings. Heat pumps are recognised as a very good form of power generation, generally giving back four units of energy for every one used. Utilising the energy generated from wind turbines and solar electrical panels alongside heat source pumps, can make them alomst 100 percent renewable.
Wind Energy Based Systems – Wind Energy as a sustainable source of energy has been going on for millennia. Recently though, there has been the trend to generate energy and deliver this onto the local grid. The ability to utilise wind generation is considered to be greatest in the UK. 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. Recovery of the cost involved is somewhere between 6-9 months.
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. That said, this type of energy can generate around 2 percent of the total electrical demand for the UK.
Using a turbine, a Hydropower system can transform the energy of water into other forms. No water reservoirs are required – as the turbines either run through a water drop-off system or the natural power of the river. Alternatively, ‘Micro-Hydro’ systems use hitherto outdated sluices and dams to generate electricity. Having said that, this process could still generate 200mW of the National 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.
Due to the energy requirements worldwide, ‘Green Energy’ is naturally growing at a fast rate. To be fair, the UK domestic market is actually leading the resurgence, with a variety of schemes.
With the rise in demand for domestic installations, both Electricians and Plumbers are well placed to take advantage of this technology. It is the political view of this type of energy generation that results in grants and financial aid becoming ever-more prevalent. Getting the right qualifications can often provide job security in a new field such as this. Electrical or plumbing training that incorporates green technology could be very useful for the future.
Author: Scott Edwards. Navigate to Electrical Training Courses or Electrician Training Courses.
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