Reactor vessel delivered to Calvert Cliffs; from brochure in Will Davis collection.

The year 1971 saw a continuation of the general trend of rising capital costs for all types of power plants, described by the U.S. Atomic Energy Commission (AEC) in its publication for 1971 as having "risen rather rapidly."  According to the AEC, the aggregate major causes for the increases in costs specific to nuclear electric power plants were as follows, with author's analysis accompanying each:

Callaway Energy Center - one of the completed, historic SNUPPS nuclear plants. Photo courtesy AMEREN Missouri.

by Will Davis

The process for renewing research and test reactor (RTR) licenses in the United States has been subject to lengthy delays and periodic backlogs since the early 1980s. Despite the apparent time invested in improvement efforts, the process does not seem to be getting better very fast. The difficulty, schedule uncertainty, and cost of renewing research reactor licenses adds to the burden of owning and operating research reactors. The scale of the challenge may contribute to regrettable institutional decisions that maintaining operable facilities is not worth the trouble.

Calvert Cliffs Plant; two unit nuclear generating station. Baltimore Gas and Electric Company brochure, October 1980.

I received an email this morning (in the midst of my daily avalanche of promotional emails) with a link to a brief story about uprating of nuclear plants worldwide (in other words, increasing the power output of an already-built plant)-what had been done, how many were planned, and so forth. I wondered to myself just how many nuclear plants in the United States had been uprated, and when they started-and given the recent hullabaloo over the recent U.S. Environmental Protection Agency CO2 emission policy, it seems like (in addition to discussing small modular reactors) we might also want to toss the uprate card back on the table. Instead of flat or only slightly rising demand for electricity, we may face a steady lowering of generating capacity as plants that are high CO2 emitters (and thus violators) get shut down. Sure, renewables will play a part, and so will increased efficiency, but having more power is better than having less, or too little. I found no quick and easy reference for the kind of analysis I wanted, so I took a little time and did it myself.

Shortly after 11 a.m. on Tuesday, May 7, 2013, the operators at Dominion Resources' Kewaunee nuclear power plant opened its output breaker, disconnecting the turbine generator from the grid for the last time after just under 40 years of operation. Shutdown of the reactor followed, and the plant entered what for some is an uncertain (even if pre-ordained) future-a long-term storage period, followed eventually after many years by the complete dismantling and removal of the plant.

Plus a few pointers to what's in store for 2013

The Davis-Besse nuclear power plant, operated by FirstEnergy Nuclear Operating Company, is located on the shores of Lake Erie about 20 miles east of Toledo, Ohio. The 908-MWe pressurized water reactor came online on July 31, 1978.

As I discussed in a June 20 ANS Nuclear Cafe post, a federal appeals court rejected the Nuclear Regulatory Commission's new nuclear Waste Confidence rule, and ordered the NRC to perform a more thorough evaluation that addresses potential risks and health and environmental impacts of very long term storage of nuclear waste at nuclear sites (until a final disposal option is developed).

Several important events have recently occurred involving the U.S. Nuclear Regulatory Commission, the Yucca Mountain nuclear waste repository, and the interactions between the two.

Getting the NRC license is just the first step

This evening there will be a debate on a nuclear referendum that is on the town ballot in Plymouth, Mass. The referendum calls for a halt to relicensing the Pilgrim nuclear power plant, pending implementation of Fukushima lessons learned.

Digital control room simulator at US NRC

With all the justifiable excitement about the Nuclear Regulatory Commission's granting licenses to Southern Company to build two 1,100-MW Westinghouse AP1000 nuclear reactors, it also is worth noting the progress the utility is making to train operators to run the new plants.