What are the top two things to keep in mind when India moves through this transition from large nuclear plants to SMRs?
I am a strong advocate for India to adopt the SMR as the primary vehicle to generate nuclear power. It is important to understand the basic idea and the intent of an SMR. People mistakenly think that an SMR is mostly about low power output while the basic idea is that in the case of a "credible postulated" accident, the radiation will not travel beyond the plant's boundary at a level that can jeopardise public health and safety. Thus, in building, say, two sets of SMR-300 plants (total 1,200 megawatt electrical, or Mwe, net), output is better than building a large plant of equivalent capacity, because the large plant will require a large exclusion zone. SMRs can be deployed to meet local energy needs instead of wheeling power over lines for long distances from a large plant. Building long distance transmission lines and securing them against environmental hazards will be an expensive undertaking. The SMR, used as a means of distributed generation, is also socially more equitable for creating homogeneous economic growth across the country. I suggest two specific points in response to your question: AERB should ensure that the country does not end up with a menagerie of designs that happened in the US in the 1970s. India has wide variations in environmental demand, such as earthquake intensity and water availability. The regulator should demand that the design being offered can be deployed across wide swathes of the country. Standardising the design would also help cut costs. Two, it must be ensured that the plant uses a fuel design that is widely available, so that the country’s plants can be supplied by multiple global suppliers. The contract with the fuel suppliers should be crafted to incentivise them to set their shops in India.