Some upgraded components (a next tier) for the nuclear reactor would also motivate ppl more to use nuclear power instead of laggy solar spam
very much agreed, i think the main reason people don;t make them is because they are not easy to set-up nor understand right off the bat and most people don;t want to risk the emense amount of damage they can cause, when learning and setting up your first reactor takes like an hour, or more. if players could make a more durable or more stable reactor with almost no fear of it exploding then i'm sure alot more people would use them.
for example, you could make a QURG (Quantum-Uranium Reaction Generator) where you ram 1 uranium cel into it like you would a normal generator and it would produce 1.5 million energy over 3 hours. when if you put it in a normal reactor by itself you'd get 3 million from it minimum, up to like 12 milloin per cell if i'm thinking clearly. so it might not be nearly as efficient for your uranium but i'm sure players that don;t use Nuclear Reactors are stock piling uranium with no use. this would allow them to use it, yet less effectively, in order to reduce the Solar Panel Spam.
Also, perhaps since the QURG would drain them slower and "more accurately" perhaps have it's ouput as Nearly Depleted Uranium cells at 80%, eventually a player would have so many nearly depleted uranium cells that that might be tempted to make a Breeder Reactor in order to recharge the cells to put in their QURGs or they'd learn and understand reactors as a cause of these and start using Nuclear Reactors more. so regardless i see this as a good opprotunity to lure people into using higher teir machines and upgrade from those lesser generators.