Simplifying Solar Energy Classes – The Best Routes

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Posted by admin | Posted in Latest | Posted on 21-02-2010

In a nutshell, ‘Green Energy’ utilises natural resources such as sunlight, wind, tides and geothermal heat to provide our daily energy requirement. When ‘Green’, they are all thought to be replenishable and natural. Often, by going back in time, we can see the value of wind power and windmills as modern energy sources. Regardless of this, we are mainly talking about using modern techniques to offer planet friendly and eco-efficient solutions.

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.)

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. To begin with, we have the concept of drawing energy from the Sun to heat water – known as 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.

Within Solar Energy overall, Solar Water Power is most commonly used in the UK. 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. 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.

Biomass Energy Based Systems: Historically, this has come from plants and animals, though nowadays this also includes new genetcially engineered ‘energy crops’. 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. Considering all this, and the relative lack of C02 produced, makes the whole process highly green overall. Much of the UK wood crop is sustainable, in order to ensure that C02 produced during any heating process is absorbed.

Within this field is the need for the use of ‘Energy Crops’, such as fast growing trees, e.g. Willow and Poplar or other entities grown on a Short Rotation Coppice (SRC). Also producing high yields of dry matter are the perennial grasses. Equally significant within this practice sit Municipal and Agricultural waste products. To begin with, Agricultural Waste is often produced as part of the agricultural process overall. However, waste derived from food or wood is another biomass entity – called Municipal Waste.

Systems Based On Geo-Thermal Energy: Used in the generation of both warm water and electricity, this energy mainly comes from the Sun and heats the Earth. Using the ground temperature of around 12 degrees in the UK – we can both heat and cool buildings. Generally, items such as Heat Pumps are thought of as very effective, as they produce four units of energy for every one that is used for generation. A greate 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: As an energy source, wind energy has to be one of the oldest forms of energy creation in history. Where the local power grid demands it, energy can be diverted and sold there. To be fair, the UK has the highest level of wind generation 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 just 1 percent. Although electricity is still being produced from between 2-10 p per kWh, it could be generated from as little as 2p per kWh. Recovery of the cost involved is somewhere between 6-9 months.

Finally, we have Hydropower; an area in which the UK does well within Europe. Having said that, the art of using energy from moving water (just like wind power) is very traditional. In total, this could produce something like 2 percent of all electricity required in the UK.

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.

The demand on ‘Green Energy’ continues to develop – in light of the energy demands worldwide. The UK remains one of the main beneficiaries of this technology.

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.

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