Interesting Engineering reports a review study that shows that it is possible to meet global energy demand completely with renewable energy sources.
The full list of consulted studies can be found here. A quick first glance shows that some studies consider the economic aspects of a full transition to solar, wind and water power. Though I cannot (yet) find a comprehensive analysis.
The planet Earth is facing a substantial crisis as the total amount of humans is growing to about ten billion by 2100. Not only will there be more of us, the average wealth of our grand children will be larger – though this might be highly unequally distributed among the population.
An study conducted by scientists from the University of Sussex and Aarhus University concludes that the European continent has enough potential for wind power to meet global energy demand. According to this analysis if European on shore wind power were to be fully developed it could produce 52.2 TW of power. Continue reading →
The Guardian has an interesting article on a project, Sun Cable, to export Australian solar power to Singapore. Currently Australia is one of the largest exporters of coal, also exports a great deal of liquefied natural gas (LNG) and is a major supplier of uranium – though the country itself has no nuclear power plants. Continue reading →
The age of (cheap) oil is doomed in the long run, even if we do not care about climate change, as petroleum is a finite resource which would eventually be depleted. However, our modern industrialized society requires a lot of energy and without it our planet cannot sustain a ten billion population. Continue reading →
Robots resembling humans are no longer purely science fiction, though we are far away from true stand in replacements of ourselves. Nevertheless, it reasonable to assume that over the course of this century they become a greater part of daily life. One important point we need to address is the energy supply for our lookalikes. Continue reading →
Though this an old post by me, I think it still relevant.
On march 11, 2011, Japan was hit by an earth quake and a tsunami which resulted in the Fukushima Daiichi nuclear disaster. Consequently the public opinion in Japan turned 180 degrees against nuclear power. Even their government began to consider a nuclear free future. But Japan is so heavily dependent on nuclear power, that last summer two nuclear power plants had to be restarted in the face of massive public opposition. The question of this post is what are the alternatives for Japan? I will discuss solar power, wind power and Ocean Thermal Energy Conversion (OTEC). [However, both wind power and OTEC are in fact indirect forms of solar energy since both winds and the oceans are powered by the Sun.]
Wind and Solar power
These are the “classical” kinds of alternative energy sources. Both options require a lot of space, and the intensity of solar radiation…
View original post 833 more words
Butanol is quite similar to gasoline and can be produced from biological waste. As such it might become an essential part in the future of the global energy mix.
Burning fossil fuels increases the amount of CO2 in our atmosphere, with serious consequences such as ocean acidification and an increased greenhouse effect. Reducing CO2 emission is important, though it would still leave much CO2 still in the atmosphere. Actually we should look for ways to remove that from the air, one way to do so would be reforesting.