Sep 14, 2006 3:31:09 AM cite

Renewable energy is a balance of what it costs to produce and what we are willing to pay for it. If it is cheaper to run your engine on biodeisel than on conventional fuel, not taking into consideration the Carbon Effect then you can expect it to be popular. If however you have to take into consideration the Carbon Effect when you are paying more for your fuel, then you can expect the market to be small. I would suggest that in order for there to be a greater understanding of the need and benefit of renewable energy there needs to be a SeaChange in attitude toward costs versus benefits.

by RedSevenOne

Sep 11, 2006 3:19:14 PM cite

Renewable energy sources do not produce more energy than you put in. Nothing in the world does, since the laws of physics forbid it. Energy can transform into another kind, but will never be lost. It also can not just start existing. The goal of using renewable energy sources is to use an already existing energy (sunlight, waterflow, wind) and just grab it without much effort, to then transform it into another energy that we want: electricity. Given you have chosen a proper location for a wind/water power plant, you will be able to earn money over time. It is nothing to earn fast money, or we would have all done it already!

by Foossa

Sep 9, 2006 2:55:00 PM cite

Antoschka - Ekaterina Moshaeva: Now a lot of scientists are thinking about this problem ... And there are a lot of new ideas about energy because it`s a question number one in the whole world and we have to find possibilities to do this. I hope in the next future we would be able to use this kind of energy more and more. Many scientists and many organisations have already begun to use this energy, this clean energy. And from my point of view we all should to do this in the near future.

by Antoschka - Ekaterina Moshaeva

Sep 9, 2006 2:55:00 PM cite

Abbas Beydoun: Simply I have no idea.

by Abbas Beydoun

Sep 9, 2006 2:55:00 PM cite

Alvaro Restrepo:

by Alvaro Restrepo

Sep 9, 2006 2:55:00 PM cite

Ana Lucy Bengochea:

by Ana Lucy Bengochea

Sep 9, 2006 2:55:00 PM cite

Andries Botha: I’m sorry, I don’t really know how to answer this question. The question is, people do not produce more energy, they consume energy. The world, the depletion of our resources will [attest] to that. What is the energy balance of renewable energies? I’m not sure I know how to answer that. I’m sorry.

by Andries Botha

Sep 9, 2006 2:55:00 PM cite

Angaangaq Lyberth: Answertext will be available soon.

by Angaangaq Lyberth

Sep 9, 2006 2:55:00 PM cite

Anthony Arnove: Well, the question of renewable energy is a very important one, but the important – one important thing is - at the outset is that our understanding of the possibilities of renewable energy has been systematically undercut by the existing framework of energy extraction and exploitation, which has limited any meaningful consideration of these alternatives because it would be economically threatening to the existing oil and power industries to consider renewable energy resources and alternative energy resources. So, I think we have barely begun to see the kind of investigation, intelligence, investment that it would take to truly begin to understand this question. But, for those who have begun to look at the question, it is clear that possibilities for solar and wind energy and other renewable forms of energy have tremendous promise and urgently need to be explored given the consequences [that are becoming] more and more clear everyday of the existing model.

by Anthony Arnove

Sep 9, 2006 2:55:00 PM cite

Anuradha Koirala:

by Anuradha Koirala

Sep 9, 2006 2:55:00 PM cite

Anuradha Mittal: I think Simon Retallack who is also sitting on this table will have a better answer to this question.

by Anuradha Mittal

Sep 9, 2006 2:55:00 PM cite

Ashok Gangadean: This question raises the question of the model of renewable energies. And renewable energies I think has to be part of the consciousness of the culture that we are using. And renewable consciousness, self-sustaining consciousness, integral consciousness, holistic consciousness is a form of consciousness that sustains itself. And when we are living and making our culture in that integral, holistic, whole system, sensitivity, there will be renewability and abundance of the energy resource and a balancing. So, to me it’s not to balance it in the old model of culture that is inherently off balance and off kilter where there is a disparity between consumption and renewability and the needs and the consumption rates that are there in the marketplace. There has to be a radical re-shifting and rebalancing of the way we are in our culture, in our world. And with that shift and a renewable consciousness and culture, then there will be an appropriate balance in renewable energies in terms of our needs and our consumption patterns.

by Ashok Gangadean

Sep 9, 2006 2:55:00 PM cite

Audrey Kitagawa: I think we need to give these alternative forms of energy some leeway to develop and see how they are working out. Some of these ideas and innovations are new, and we should not stifle the creativity to try to make this a better world. There are some energy sources, however, that can be utilized that, for example, solar energy, that we don't have to be concerned about whether or not their production actually utilizes more energy. So the solar energy is a currently existing renewable resource that we need to look at more seriously. So it would depend on the kind of renewable energies that we are talking about that are hopefully increasingly coming into being and actually studying to see whether or not they are in fact more efficient than what we currently have, that we are utilizing.

by Audrey Kitagawa

Sep 9, 2006 2:55:00 PM cite

Avi Primor: In some sectors yes but not in all. What concerns solar energy I would definitely say yes. The production of solar energy isn't expensive, it is very cheap. The devices are expensive. That's the problem. Today there are factories which can be run only with solar energy. Their machines could work with solar energy alone. But the devices are very, very expensive. That's why an entrepreneur who wants to use solar energy has to invest so much money that he spends more money for energy for the first ten years as he would spend for oil. But ten years later he gets the energy for free. The question is if an entrepreneur can afford it today to invest a lot of money before it comes back to him. Therefore new machines need to be developed which could be less expensive but that is also a question of what we do and how much we produce. If we produce a lot of solar energy and if we produce a lot of devices for the production of solar energy then it will become much cheaper and it won't be comparable to oil. It'll be much cheaper but we have to invest in it.

by Avi Primor

Sep 9, 2006 2:55:00 PM cite

Benjamin Fahrer: Renewable energies, we need to look at the energies that we are talking about. It is a myth that solar consumes more energy in manufacturing of the photovoltaic panels that they actually generate in our lifetime, and now that solar has been proven as an efficient use of energy, we can see that after seven years they have then made up the energy that was used in their manufacturing. And assist through the new technologies that have come about, and we’re looking at micro hydro, a small microturbines that we can place of and divert a small amount of water to spin a turbine, very simple parts, same with wind, very simple parts that can generate power. And if kept up in a very good maintenance and with continued observance of what’s working and using these renewable energies in there most efficient way. Then, they definitely can produce a lot more energy than it took to consume them. And we should switch a lot, we should take the limited amount of oil that we have and conventional energies to manufacture this renewable energies, to manufacture the PV panels, and to manufacture the microhydro and wind turbines. But first, we need reduce again our consumption because there’s no way that renewable energies can meet the needs of our consumption. Be more efficient with ourselves as well, energy efficiency.

by Benjamin Fahrer

Sep 9, 2006 2:55:00 PM cite

Benson Venegas: Yes. The answear is clear. The demand of energy is growing because the population is growing and because the economy is growing. The economical growth leads to more consumption of energy and that is why they provoque an imbalance of energy. Some realistic previsions foresee that perhaps in 2030 or 2050 we will have finished with our ressources of petroleum. Some countries have already progressed in this sense and created alternative energies and in this moment the use of bioenergetic energy as a source is being presented. But this is a problem because the use of bioenergetic sources may provoque the destruction of forests or fields that will lead to other problems for teh environment that haven’t been considered in the economical analyses. Thus we have to revise those paradigms. The most practical and easy way in short time is to use energy efficiently. We have to create a culture, an education, civilization and population that makes an intelligent use of energy. Cars are wasting so much energy. 95 % are getting lost in the process. That is why we have to revise our concepts... .

by Benson Venegas

Sep 9, 2006 2:55:00 PM cite

Bianca Jagger: Answertext will be available soon.

by Bianca Jagger

Sep 9, 2006 2:55:00 PM cite

Bill Joy: Yes. And in fact, even your car, if you drive it even a few thousand miles it produces an enormous amount of CO2 and the amount of energy that went into the car would be paid back very quickly by buying a more energy efficient car. If we look at wind, solar, tide, wave, geothermal, all these things are quite enormously energy positive. Biofuels like ethanol produced from sugar cane, very energy positive. Perhaps the only renewable fuel that can be produced that’s close to neutral in its energy balance is ethanol made from corn because that takes so much energy input. But if you collocate an ethanol plant with a gasification plant that’s taking other biomass and produce sin gas, basically a kind of a natural gas from it, that process which has a positive energy balance produces waste heat and you can use the waste heat and mate those two processes together so that they are more net energy out than they consume. So you should be very optimistic about renewable energy because renewable energy is truly free of need for these external energy sources.

by Bill Joy