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.

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One of the core concepts of PicoTurbine can be stated: Tell me, and I will forget. Show me, and I might remember some of it. Involve me, and I will master it. Based on this old tried and true adage, the kits that the company produces come with activity suggestions to get the young people into hands-on learning situations. One suggestion of the company is to demonstrate how heat can be produced by wind energy (the company’s specialty) through using a “picture wire” for the heating element. PicoTurbine has found that people typically think of wind energy as being “cold” energy, and are pleasantly surprised to see how wind can be used for generating heat in the home. Another project suggestion that the company offers is to have different groups split off in the classroom and then compare their respective wind turbines that they have built. They can see which ones produce the most or least electricity; which ones start up with need of the least amount of wind power; and for very young children, which ones have the most aesthetic appeal.

There is a core curriculum that PicoTurbine has in mind for teachers to instill in their pupils. Renewable, alternative sources of energy include solar, hydroelectric, geothermal, and biomass in addition to wind-produced energy. When we use more alternative sources of energy, we decrease our nation’s dependence on foreign oil supplies, which often come from nations who cannot really be called our “allies”. Alternative energy is already becoming cost effective when set against the fossil fuels that we are so reliant on currently.

PicoTurbine points out that wind farms and solar arrays are already letting their makers enjoy commercial success. In the last two decades, the cost of photovoltaic cells expressed in terms of per-watt has gone from nearly $1000 to just $4! It has been predicted by analysts that by the year 2015, the cost per watt should only be about $1 (in today’s dollars). Students also need to be taught about the hidden cost of fossil fuels: pollution and environmental degradation. Air pollution from burning fossil fuels has been shown through studies to increase incidences of asthma attacks, heighten the effects of allergies, and even cause cancer. Switching over to clean, green energy found in the alternative forms would prevent air pollution and help bolster the environment.

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There are three kinds of OTEC.

“Closed Cycle OTEC” uses a low-boiling point liquid such as, for example, propane to act as an intermediate fluid. The OTEC plant pumps the warm sea water into the reaction chamber and boils the intermediate fluid. This results in the intermediate fluid’s vapor pushing the turbine of the engine, which thus generates electricity. The vapor is then cooled down by putting in cold sea water.

“Open Cycle OTEC” is not that different from closed cycling, except in the Open Cycle there is no intermediate fluid. The sea water itself is the driver of the turbine engine in this OTEC format. Warm sea water found on the surface of the ocean is turned into a low-pressure vapor under the constraint of a vacuum. The low-pressure vapor is released in a focused area and it has the power to drive the turbine. To cool down the vapor and create desalinated water for human consumption, the deeper ocean’s cold waters are added to the vapor after it has generated sufficient electricity.

“Hybrid Cycle OTEC” is really just a theory for the time being. It seeks to describe the way that we could make maximum usage of the thermal energy of the ocean’s waters. There are actually two sub-theories to the theory of Hybrid Cycling. The first involves using a closed cycling to generate electricity. This electricity is in turn used to create the vacuum environment needed for open cycling. The second component is the integration of two open cyclings such that twice the amount of desalinated, potable water is created that with just one open cycle.

In addition to being used for producing electricity, a closed cycle OTEC plant can be utilized for treating chemicals. OTEC plants, both open cycling and close cycling kinds, are also able to be utilized for pumping up cold deep sea water which can then be used for refrigeration and air conditioning. Furthermore, during the moderation period when the sea water is surrounding the plant, the enclosed are can be used for mariculture and aquaculture projects such as fish farming. There is clearly quite an array of products and services that we could derive from this alternative energy source.

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Ireland actually has the potential to become an energy exporter, rather than a nation so heavily dependent on energy importation. This energy potential resides in Ireland’s substantial wind, ocean wave, and biomass-producing alternative energy potentials. Ireland could become a supplier of ocean wave-produced electricity and biomass-fueled energy to continental Europe and, as they say, “make a killing”. At the present time, Ireland is most closely focused on reaching the point where it can produce 15% of the nation’s electricity through wind farms, which the government has set as a national objective to be reached by 2010. But universities, research institutes, and government personnel in Ireland have been saying that the development of ocean wave energy technology would be a true driving force for the nation’s economy and one which would greatly help to make Ireland energy independent. A test site for developing wave ocean energy has been established in Ireland, less than two miles off the coast of An Spideal in County Galway Bay. This experimental ocean wave harnessing site is known as “Wavebob”. The most energetic waves in the world are located off the West coast of Ireland, says Ireland’s Marine Institute CEO Dr. Peter Heffernan. The technology to harness the power of the ocean is only just emerging and Ireland has the chance to become a market leader in this sector. David Taylor, CEO of the Sustainable Energy Initiative,or SEI, tells us that SEI is committed to innovation in the renewable energy sector. Wave energy is a promising new renewable energy resource which could one day make a significant contribution to Ireland’s electricity generation mix thereby further reducing our reliance on fossil fuels.

Padraig Walshe, the president of the Irish Farmers Association, tells us that with the closure of the sugar beet industry, an increasing amount of Irish land resources will become available for alternative uses, including bioenergy production. Today, renewable energy sources meet only 2% of Ireland’s total energy consumption. From a farming perspective, growing energy crops will only have a viable future if they provide an economic return on investment and labour, and if the prospect of this return is secure into the future. Currently the return from energy crops is marginal and is hampering the development of the industry. Biomass energies need to be further researched by Ireland.

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