Today a professor lecturing to us about sustainable development. It is a topical subject that interests me. In the lecture mentioned a technique I have also encountered in a television program, to boil water by focusing rays from a number of football fields to a small needle's eye placed in a high soltorn (solar tower). One of the main projet which are in operation today can be found in Seville, Spain, and known as Solar Tres . The plant is 17 MW, which requires an area of ​​142 Ha (a bit roughly 280 football fields). The temperature in the focal point may reach up to 2000 ° C.

By heating the liquid salt plant can deliver a consistent effect in the evenings and during less soltäta periods. In 2020, predicted the technology to deliver the same power as the current energy system can handle.

Another exciting idea that was given during the lecture was that the world must stop subsidizing the oil and fossil fuels. A study in the U.S. (unfortunately not exact source) have recently shown that if one is to address all externalities gasoline lead (only in the U.S., not globally) in price, gasoline price is 35 SEK (converted from U.S. dollars). That is, if we do for gasoline in the same way as cigarettes (where the smoker in the price paid for the medical care, etc. that is needed to reset the negative effects of smoking on society).

What we pay for is today is just gasoline cost, potential profit and a tax that is not dedicated to the damage (in the form of mijöpåverkan etc.) åsampkas of its release. Should these costs be added to it is likely that the "subsidy" which today is made for wind power is not required. Solar technology, electric and hydrogen cars are other examples of winners.

Environment Professor James Hansen recommends in a letter to President Obama:

"Tax and 100% dividend". [Relating to tax on coal]

So that coal should be taxed and that 100% of the tax shall be distributed to all (to the public) who are harmed by the carbon (and it makes the whole world).

Survey

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