Swedish state-owned utility Vattenfall has narrowed its choice for new nuclear plants to the BWRX-300 or Rolls Royce SMRs. They've decided not to build large reactors. They aim to have new reactors in operation by the mid 2030s. The company's first new nuclear construction project will have 1500 MW of overall capacity, which would be produced by five BWRX-300 reactors or three Rolls Royce reactors. Their stated reasons for choosing SMRs is: “Building a series of smaller units brings clear cost advantages; they require less space, need significantly fewer personnel. That leads to more manageable logistics.” Sweden's electricity is generated by hydro (~50%), nuclear (~33%), with intermittent renewables providing much of the rest. According to the article: "...a growing share of weather-dependent renewables has led to price volatility, imbalances and a lack of available grid capacity." I actually think that's a bit of an exaggeration, for Sweden, at least. Nations that have a large amount of flexible and dispatchable hydro power are more able to buffer intermittent sources.