A competition to come up with the future reuse of a 175m long twin-hulled Typhoon class Soviet-era nuclear submarine, the largest ever built, has just been launched. In the list of FAQs is the question, 'Can we use the nuclear reactor to generate energy for the reused building submarine?' with the answer 'Yes, you can'. The scale of the build and reuse is immense.
 
The competition blurb goes:

The Cold War is over and the world has to become a more friendly space. And we believe it's a right time to get rid of nuclear weapons of mass destruction aiming to turn the Earth into ashes in several seconds. One of the symbols of these frightening times was a Russian Typhoon Class submarine - the largest nuclear submarine ever built.
 
This weapon of mass destruction was designed by Rubin Design Bureau in 1975 and became a part of the Soviet fleet in 1980. It has incredible dimensions - 175m long and 23 meters wide. By placing it vertically the Typhoon class submarine could be compared with Mies van der Rohe Seagram building or Swiss Re high-rise by Norman Foster.
 
In 2010 the decision has been made that the remaining 3 submarines will serve until 2019. In 2013 Russian authorities announced that two of remaining submarines are going to be utilized in a close future due to outdating of the electronical systems on board and high maintenance costs. The remaining submarine will still serve as a training facility until 2017. After this period the same fate awaits them as their predecessors.
 
The dismantling costs are about 10m USD according to the Russian mass media. For this reason Rubin Design Bureau is looking for alternatives for a reuse of the submarines. There were alternative plans to redesign the submarine into a submarine cargo vessel with 15,000 tons capacity. This project has not been realised due to the lack of finance and practical reasons - not all ports can accommodate the submarine. As a result three out of the six built submarines were already dismantled.

There are no restrictions to the location choice - as long as it is possible to reach it by open waterways. The submarine also can be placed on the shore within 200m from the waterfront. There are no restrictions to the choice of the program. It is possible to use the entire volume of the submarine except for the nuclear compartment that should stay. Additional volume might be added as long as the submarine identity is readable in the design.
 
Participants must register and pay the 80€ entrance fee by August 24, 2014. The total prize money is 6000 EUR.