Innlandet county is an inland region in Norway and it is the biggest county by area in the country, with a wide spread population. It produces more electricity than it consumes over the course of a normal year, yet still depends on imports during cold winter periods. This apparent contradiction is rooted in a production system dominated by run-of-river hydropower, which offers limited flexibility when demand peaks. As electrification accelerates and grid constraints restrict both new consumption and new production, the region faces a growing shortage of firm capacity at the very moments electricity is needed most. This article explores whether nuclear power could play a role in resolving this mismatch and which reactor designs align with Innlandet's specific conditions. Heat only reactors for district heating, small modular reactors for electricity and industrial heat, and large scale reactors providing firm capacity are assessed. The analysis shows that nuclear power could address the challenge in different ways, by reducing peak demand, adding flexible capacity, or strengthening system adequacy, depending on technology choice and deployment timelines.
The Dragon project comprises a five-year research and development program which includes the construction of a reactor. The design of the reactor is based on the criterin that it should be as compact as possible (high power density) and that the gas outlet temperature should be high enough so that the use of modern efficient steam or gas turbines is possible. The physical properties of the Dragon reactor, the construction, fuel elements, and primary circuit are described. Possible future developments in the reactor design are briefly considered. (J.S.R.)
