Wednesday 29 March 2017

Biofuels as Alternative Sources of Energy

Biofuels as Alternative Sources of Energy

Biofuels are produced by converting organic matter into fuel for powering our society. These biofuels are an alternative energy source to the fossil fuels that we currently depend upon. The biofuels umbrella includes under its aegis ethanol and derivatives of plants such as sugar cane, as well aS vegetable and corn oils. However, not all ethanol products are designed to be used as a kind of gasoline. The International Energy Agency (IEA) tells us that ethanol could comprise up to 10 percent of the world's usable gasoline by 2025, and up to 30 percent by 2050. Today, the percentage figure is two percent.

However, we have a long way to go to refine and make economic and practical these biofuels that we are researching. A study by Oregon State University proves this. We have yet to develop biofuels that are as energy efficient as gasoline made from petroleum. Energy efficiency is the measure of how much usable energy for our needed purposes is derived from a certain amount of input energy. (Nothing that mankind has ever used has derived more energy from output than from what the needed input was. What has always been important is the conversion—the end-product energy is what is useful for our needs, while the input energy is just the effort it takes to produce the end-product.) The OSU study found corn-derived ethanol to be only 20% energy efficient (gasoline made from petroleum is 75% energy efficient). Biodiesel fuel was recorded at 69% energy efficiency. However, the study did turn up one positive: cellulose-derived ethanol was charted at 85% efficiency, which is even higher than that of the fantastically efficient nuclear energy.

Recently, oil futures have been down on the New York Stock Exchange, as analysts from several different countries are predicting a surge in biofuel availability which would offset the value of oil, dropping crude oil prices on the international market to $40 per barrel or thereabouts.  The Chicago Stock Exchange has a grain futures market which is starting to “steal” investment activity away from the oil futures in NY, as investors are definitely expecting better profitability to start coming from biofuels. Indeed, it is predicted by a consensus of analysts that biofuels shall be supplying seven percent of the entire world's transportation fuels by the year 2030. One certain energy markets analyst has said, growth in demand for diesel and gasoline may slow down dramatically, if the government subsidizes firms distributing biofuels and further pushes to promote the use of eco-friendly fuel.

There are several nations which are seriously involved in the development of biofuels.

There is Brazil, which happens to be the world's biggest producer of ethanols derived from sugars. It produces approximately three and a half billion gallons of ethanol per year.

The United States, while being the world's greatest oil-guzzler, is already the second largest producer of biofuels behind Brazil.

The European Union's biodiesel production capacity is now in excess of four million (British) tonnes. 80 percent of the EU's biodiesel fuels are derived from rapeseed oil; soybean oil and a marginal quantity of palm oil comprise the other 20 percent.

Consultants on Alternative Energy

The alternative energy consultants tell us that the transition from the petroleum-driven economy and society will not be a smooth one, on the whole. The amount of new technologies and infrastructures that need to be developed and built is staggering—even as Germany achieves powering 10% of the entire nation through the use of wind turbines and solar arrays, even as corporation after corporation is springing up, helped by various governments' tax breaks and rebate incentives, to drive forward the alternative energy mission. We have lain dormant on alternative energy on the grand scale for so long that we now have to scramble to play catch-up as access to cheap oil lurks ever closer to being a thing of the past. 

Consultants on alternative energy also tell us that we need multilateral, international efforts in concert with one another in the direction of getting away from the heavy—almost total—dependence on fossil fuels. They are poised to become too expensive, burning them is polluting the atmosphere, and digging for them is disrupting the natural environment. We have about 30 years left of reasonably cheap oil and gas—and consultants say that within 20 years beyond that point, we had better be at least 90% independent of them. Unfortunately, at the present time the world is mostly not acting as if this is the case. The thirst for oil is growing, not slaking, and it is growing faster now than it did even in the 1970s.

One of the major problems of transition, the consultants point out, is that higher oil and gas prices stimulate the economy (This flies in the face of what many energy so-called “experts” and many members of the public believe, but the fact is that oil and gas are found and manufactured and transported by huge corporations who employ multitudes of staff workers and contractors; and from their huge profits their stocks remain lucrative on Wall Street.). Alternative, or “green” energy has to become more marketplace friendly, more profitable to investors and would-be employers. Wall Street does not like change; so there is resistance to this much-needed economic transition. It is because of this that many consultants are saying that we need an international, governments-backed initiative put into place; we are told that we cannot expect the new economy to spring forth overnight, all clean and polished and perfected, from the black ashes of the fossil fuel economy phoenix.   

It is most imperative that the wealthy, big-production nations such as the US, Japan, Western Europe, and others be the ones to spearhead the effort to get off of the fossil fuel dependence. Smaller, poorer nations are very simply never going to achieve the level of energy production through coal and oil that these nations have—for by the time they would be ready to, the cheap access to the fossil fuels will be gone, and they will never be able to sustain their newly-risen civilizations at that time as we have been able to do.  The time for transition from black to green is now. 

No comments:

Post a Comment