Update on Nukes

Here is a great little article on Nuclear from the Home Power magazine in the US that a friend sent me. http://www.homepower.com/article/?file=HP132_pg110_PowerPolitics

There is also another good article on the state of nuclear at http://europe.theoildrum.com/node/5631 by Dr. Michael Dittmar, a researcher with the Institute of Particle Physics of ETH Zurich, and he also works at CERN in Geneva. Here are some highlights:

• The overall fraction of nuclear energy to electric energy has gone down from 18% in 1993 to less than 14% in 2008. With electric energy providing roughly 16% of the world-wide energy end use, one finds overall a nuclear energy contribution of less than 2.5%.
• The number of produced TWhe of electric energy from world-wide nuclear power plants is now lower than in 2005, and it has decreased by about 2% from a maximum of 2658 TWhe in 2006 to 2601 TWhe in 2008.
• Today and world wide, 48 nuclear power plants with a capacity of about 40 GWe are under construction. Only 10% of them are being constructed within OECD countries, which host currently about 85% of the existing nuclear reactors. However, about 100 older reactors with slightly larger capacity are reaching their retirement age during the same period. It follows that even if all 48 reactors might be connected within the next 5 to 10 years to the electric grid, it will be difficult to maintain the current level of TWhe produced by nuclear energy.
• The natural uranium equivalent required to operate the 370 GWe nuclear power plants of today is roughly 65,000 tons per year. However during the past 10 years, the world-wide uranium mines extracted, on average, only about 40,000 tons of uranium per year, and the difference had to be compensated for by secondary resources. According to the data from the Red Book 2007 and the WNA, the remaining civilian uranium stocks are expected to be exhausted during the next few years. Consequently the current uranium supply situation is unsustainable.
• The urgency to increase world-wide uranium mining by a large amount is well documented in the current and past Red Book editions and related official declarations. However, the latest uranium mining data indicate that new uranium mines will not be capable to compensate for the diminishing secondary uranium resources, and that it will be difficult to fuel the existing 370 GWe. It seems that either a rather welcome but improbable further large conversion of nuclear weapons into reactor material will happen during the coming years, or fuel supply problems within the next 3-5 years will force a 10-20 GWe reduction of the operational nuclear power capacity.

Frank