A small capacity transportable nuclear power and technology plant (SC TNPTP) is being considered for electricity and heat supply, production of freshwater and also hydrogen (Komkova et al., 1998). The concept has been put forward by IPPE and St Petersburg Marine Building Bureau. The plant rating is chosen in order to optimise the economics for application of the reactor in remote areas in Russia. A 1-MWe unit prototype reactor TES-M has been designed but it is necessary to increase the power in SC TNPTP by at least a factor of 2, with no significant increase in the mass and dimensions to achieve satisfactory economics.