Average life cycle of a power plant in the US is about 50 years. Many of the power plants that we use today were built in the late 1960's early 70's. The "base load" plants started, for the most parts, in the early 1970's. If you do the math, these plants are getting very old. Almost to the point of being beyond their service life.
Many of the nuclear power plants are now asking for extensions to their operating lives. Something originally never considered.
Thanks for the quote on the South Texas Plant. While it is true that it is a great facility, there are many more nukes in the center part of the nation. Ohio, Illinois, etc. Texas gets a large amount of its power from the combustion process. No slight to the Texans here. The other states don't have your natural resources. Nuclear and renewables are better options in other places. You can't ship power for very long distances. Shipping large amounts of coal is similarly difficult and expensive.
Nukes are the way to go. Did you ever see the way that Obama flip flopped on the nuclear issue? Against it....then for it? Wonder why? The middle part of the country.......where lots of people are employed by the power companies. He needed it to get elected. He is trying to help his constituency here by doing this. This is a payback. Obama is giving the electric utilities their way out of the situation. The fed gov will give loan guarantees on the building of the plants.
These things better be done quickly, however. If it takes 5 years to permit a site and 5 years to build it, you are already at 2020! That is the magic 50 years.
We have 100 nuke plants that will END their life then. We have to build 100 plants JUST TO STAY EVEN. At 6 billion per plant, that is 600 billion to maintain the same electrical capacity that we currently enjoy.
If we INCREASE the electric usage by 4 percent per year, we will need 40% more by the time we are building the plants. We will then need to spend for the additional 40 plants.
Our inaction over time has really hurt our competitive position in the world. We need long term base load power plants that don't or minimally pollute. It is that simple.