Posts Tagged ‘New Energy Sources’
Drawbacks in Renewable Energy Development
Everyone today is aware of the high costs in the use of the traditional energy sources as electricity, petroleum and many others. Also it has being predicted that in the next century most of the sources of these ‘energies’ will be depleted as the natural resources become over exploited beyond the natural replenishing rate. This has compelled us-the human beings to vigorously seek for new energy sources to service our domestic, industrial and even military needs.
The first hindrance in the exploitation of the renewable energy is the remoteness of the locations that they are found. It is true that most of the energy generated anywhere in the world is consumed in the expansive towns or cities. The location of these vital energy deposits are in places that make the viability of the projects to be impossible due to the cost; resulting from the terrain and long distances that the energy need to be transmitted.
Another shortcoming in the use of renewable energies is their dependency on climatic or geographical conditions. A renewable energy provider such as the sun (solar energy) maybe affected by lack of adequate sun exposure during cold or cloudy seasons. Also the human activity in some geographical locations may interfere with the productivity of certain renewable sources as biomas.
Due to the long time command and existence of some energy sources such as petroleum and electricity many organization are reluctant in doing, or funding renewable energy research and development. This has also been brought about by sabotage by multinationals that stand to lose billions if the whole globe switches to renewable energy.
Despite these drawbacks we are confident that renewable energy will take the day at the end, for they have many advantages compared to the convectional energy sources as minimal pollution and lower cost if carefully harnessed.in fact we don’t have a choice.
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Drawbacks of Green Energy,drawbacks to green energyGreen Energy – Biofuels, the Real Solar Power
We live in a world eager for new resources of energy. But despite the huge progress and development of green energy and renewable resources, we did not yet reach the goal of good fossil fuels replacements.
There are several directions of research for new energy sources, but all of them cannot supply enough energy to make a real change. The real “green” resources are wind, waves, hydro and geothermal power, which are good resources, but certainly not sufficient to supply the demands.
The more promising sources of energy are:
1.Solar energy – which is for now very inefficient and expensive.
2. Hydrogen – which is hard to produce right now.
3. biofuels – that can compromise our food supply.
The question is – what is the most promising? – in what resource we should invest?
Before we all start to walk in the solar power road, we first must understand that for now, biofuels are the real solar power supply.
why is that? well, our solar harvesting devices are very insufficient comparing to engines using fossil fuels. but from where these fuels came from? well, these fuels come from ancient plants and animals that were much more efficient in term of harvesting the sun’s energy. I am talking about photosynthesis.
Photosynthesis is one of the most efficient processes on earth, maybe the most competent. Cyanobacteria, algae and plants can use almost 100% of the sun’s energy to produce chemical energy. nearly hundred percents of the light captured buy the photosynthesis apparatus, is transformed to electric currents and then to chmical energy stored in sugars and fats. these sugars and fats turn to be our fuels millions of years later.
But today’s plats and algae can still produce this solar energy as good as they did millions of years ago, and we use this energy in our foods to maintain our lives. Agriculture was the driving force that first let humans to control this enormous energy supply, and probably was the main trigger for the development of the human society.
In order the satisfy the ever growing demand for energy in the modern and post-modern society, we must increase a little beat our agricultural skills. Why we need to re-invent new ways to harvest the sun’s fruit, when evolution already sis it for us, and created an amazing machinery in plants?
The real goal of the people who seek for new energy sources should be dramatically increasing the yield of the agricultural production, in order to be able to use plants sugars and fats to produce ethanol, biodiesel and other bio-fuels to use in the modern industry and transportation.
Let change our investments from traditional engineering approaches to bio-engineering, guiding our research toward more proficient production of biodiesel and ethanol, the easily accessible solar power.