"For example coal and nuclear plants will pollute a lot throughout the game so you want to avoid them"
I'd just like to point out that nuclear technology has evolved a bunch in the last 30 years, to the point where it is now less polluting than hydroelectric in the real world. Nuclear waste used to be a major problem in early reactor designs but modern breeder reactors - specifically thorium - can actually burn their own waste. I think the only major country that doesn't consider nuclear a green technology is Germany for political reasons.
The IRL problem with nuclear is that a clean nuclear reactor design costs a lot more to build than the other technologies, and takes much more time to get running. If you want to more realistically balance nuclear you should make it cost and produce 5 times as much and, importantly, add a lead time of 4 years over which the player is unable to destroy the building and the building produces nothing. It will also add an interesting mechanical hump that players would need to plan around if they choose to invest in nuclear: When and how much nuclear is worth building to reach the objective in the allotted time frame?