McDermott to Unveil Smaller Reactors With Smaller Price Tags
Written by Glenn Pearston   
Thursday, 18 June 2009 12:28
One approach to new technologies involving nuclear power is to downsize the reactor. Mini-reactors, in the range of 125 megawatt are being introduced by McDermott International. The intention is to make cheaper and more flexible reactors so more of them can be deployed vs. having to implement mega reactors. This represents the first small nuclear reactor by a U.S. based firm. McDermott International Inc is a subsidiary of Babcock & Wilcox (B&W). The reactors in the range of the 125 megawatt design are intended to be cheap and modular allowing utility companies to deploy them as needed rather having such a heavy upfront cost. This changes the financial paradigm that utility companies have faced when looking at nuclear power. Massive up front costs have to be spread across the expected life span of the reactor. The smaller reactors make that equation more favorable to investors.

A letter of intent has been signed by the Tennessee Valley Authority and B&W for the mPower reactor. This is the beginning stage of a long term plan for the deployment of the mini reactor.

Additionally, TVA has signed a deal with B&W to explore the use and construction of a fleet of mini reactors across the region. The TVA is a consortium of cooperative and municipal energy utilities. TVA wants to diversify to meet the needs of the area and plan for future growth.

The current state of the economy and harder to get credit have forced companies to consider alternatives for the high price of nuclear reactors. Large scale reactors that can produce up to 1,600 mw of energy tip the cost scales at up to $12 billion. This large price tag is greater than many energy utility companies show for a market value. Being able to deploy a smaller reactor with a significantly lower price tag that also has scaling capabilities makes for an attractive offering.

CEO of the newly formed mPower project is Christofer Mowry. Mowry stated that the practical and affordable nature of the smalled reactor makes growing in to nuclear power a reality. He also stated that the benefits of zero emissions and clean power still apply to the smaller reactors.

The new reactor from B&W would utilize the ALWR design. The ALWR is a passive safe system utilizing Advanced Light Water Reactor technologies. The system would use a below ground containment system. B&W are not alone in the market of small reactors. Toshiba, GE, Westinghouse and NuScale have all announced plans for smaller reactors that carry a smaller price tag. B&W's design is scheduled to complete its application for design certification in 2011.

The new reactors will be manufactured at its U.S. site and use trains to transport the components to the sites where they will be installed. B&W has facilities in Ohio, Virginia and Indiana.

The life span of the reactor is 60 years and will require additional fuel every five years according to B&W. Current reactors are on a two year refueling cycle.


Glenn Pearston
Written on Thursday, 18 June 2009 12:28 by Glenn Pearston

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