Essay Green, Clean Energy

Writing 1In the following article from the Economist, energy problems are discussed, particularly the problems connected to intermittent renewable energy sources and the need to store energy so that it can be used when needed. Do you agree that better ways of storing energy would make generating electricity cleaner and more efficient?

Write an essay of between 300 and 370 words on this topic, briefly summarising the different solutions to energy storage presented in the text, presenting your view on whether energy storage can be a solution to our current energy problems and providing other solutions to the energy problem, if relevant. Use specific details and examples to help develop your argument.

Green, clean and efficient energy is surely the future, if our planet shall survive for many generations and energy shall become cheaper. The problem of our time lies in the large-scale production of this energy, the ability to store it for the long term and discharge it following high or low need. Especially the storing causes headache, but by big financings of different states and companies, various projects shall be worked out to achieve the aim of clean energy and declare war on atomic energy.

Atomic energy covers the main part of our energy needs, but it is not a clean source and still dangerous as the happenings in Chernobyl and Fukushima clearly show. Moreover, the disposal of radioactive waste is a very expensive endeavor. Green, clean and efficient energy is the future, nevertheless it is still far away from covering our electricity needs. The problem of clean energy plants is, that they are not really efficient and storable, moreover they need to satisfy certain geographical prerequisites. Wind farms, solar fields and pumped storage hydro power stations cannot be installed anywhere.

Furthermore, their efficacy suffers from lack of wind or sunshine. Consequently, their complete potential can only be guaranteed, if they are receiving enough wind or sunshine. Another problem of these installations is that they’re not able to store lots of energy. Big batteries could be a possibility to solve this issue, but they are unable to draw big energy charges and store them over the long term, as well as provide it when required.

New projects such as Green Power Island, Gravity Power, Advanced Rail Energy Storage (ARES), Compressed Air Energy Storage (CAES) and Pumped Heat Electricity Storage (PHES) have the capability to produce green energy in a cleaner and more efficient way as before, furthermore they are able to mass-produce it as necessary and the energy is storable.

It is possible to produce energy in a cleaner way, but the storing and the covering of the high energy needs are a problem which has to be solved any time soon. The clean energy market is large and has lots of potential to compete against the atomic energy, mostly because many countries support the projects financially.

(Words 367)

Writing 2Write a 250 – 300 word accompanying paper to summarise the presentation that you will be giving for the oral component of the English Specialised exam.

The topic of the presentation, and therefore of your paper, must be one of the following:

• The 7 deadly sins of presentations• How to make renewable energies economical• Transport and global warming

The 7 deadly sins of presentations

1. Don’t read offThere’s nothing worse than standing in front of an audience and reading everything evenly from your notes. Eye contact with the listeners is crucial in order to maintain your presentation interesting by means of gestures and countenance. Never rehearse your body language, this gives the appearance of being fake and unnatural. There’s no need to learn your text by heart, simply use cards as a memory aid and build sentences based loosely on your own keywords.

2. Give varietyYou should use all possible tools, such as a board, overhead transparencies, a poster, a PowerPoint presentation, a short video, slides, etc. to arrange your presentation interesting.

3. OutlineA person is able to be wholeheartedly concentrated for ten minutes. If a presentation lasts longer, you have to mind particularly the outline. The text should be divided in short sections and in-between it would be wise to show material, so the presentation doesn’t tempt to get boring.

4. Do not overcharge the audienceThe presentation shouldn’t burden the listeners with too many numbers, since an average person can memorize only five numbers. That’s why it makes no sense to tell, for example, the percentage of Christians, Jews, Muslims, etc. among Americans. Besides, it’s easier to memorize round figures than numbers with countless decimal places.

5. LanguageAn eloquent and articulate language without using too many foreign words is the key to success. If that’s inevitable, these words should be explained.

6. Incorporate the audienceSpeak straight to the audience and ask, for example, ballpark figures.

7. Give the audience materialHand out sheets after the presentation, which briefly resumes the topic. It shouldn’t be too long, since someone informs himself anyway if he wants to know more about it. Therefore, a reference would be a better option. (Words 300)