Except nuclear power isn't all that great compared to other technologies any longer. Nuclear power has always been quite expensive, but beneficial in that it's much safer and cleaner than fossil fuel alternatives. But now we have even better alternatives, primarily wind and solar power. There just isn't much good reason to pursue nuclear fission as a power source any longer.
Now, if by "nuclear ambitions" you mean weapons, well, nobody should have nuclear weapons. We should be pressuring nations to destroy their nuclear arsenals, not advocating that more nations build them.
The sun does not always shine, nor does the wind always blow.
And do you have any idea how much energy and toxic materials it takes to make your 'clean' solar panels? Cadmium is not a fun metal to manufacture stuff from, nor is Arsenic, and both are used in semiconductor solar cells. As for the amount of energy needed to make all those cells, on average, the energy returned on energy invested (EROEI), which is the ratio of the amount of energy generated vs the amount of energy needed to manufacture and maintain the cells over their life times, makes the payback time somewhere in the range of 10 to 30 years depending on the local energy costs.
Or how large a solar plant you would need to equal one mid-sized nuclear plant? Lets do the math!
First lets pick a nuclear plant, one from somewhere roughly in the middle of list size wise, say the Byron Nuclear Generating Station, a modern two unit PWR plant generating 2300 MW of power 24/7.
Next lets look at solar facts. The daily average irradiance for the surface of Earth is approximately 6 kWh/m2, and that is assuming no clouds, haze, dust, or whatever that is in the atmosphere that might block your power giving sunlight. Now, you have to factor in your solar cells. The most are in the area of 16% to 18% efficient and cutting edge is 19.5%, if you can keep them cool. For the sake of argument I'll give you magical bleeding edge 19.5% efficient cells that keep themselves cool passively. So with our bleeding edge cells we are getting 1.17 kWh/m2 of electricity, and we need to generate 2300 MW in total.
Time to break out the calculators. As you might remember from science class, the metric system is based on powers of ten, so converting from megawatt-hours to kilowatt-hours is not that hard. 1 MwH is 1000 kwH, so the 2300 MwH from the Byron Nuclear Generating Station is 2.3 million kwH, or the output of 1.966 million square meters, almost two square kilometers, of magical bleeding edge solar cells.
But it gets more complicated then that, because the Byron Nuclear Generating Station generates power 24/7 remember? Our solar farm will only generate electricity while the sun is up, so to generate enough power to makeup for the short fall we have to DOUBLE the size of the solar farm, and then find a way to safely store some 27600 MwH of power. And don't say 'We don't have to generate and store on site, we can buy power from other places.' Long distance transmission of that kind of power is not the answer, because it still has to be generated SOMEHOW.
So to sum it up, you have 3.9 square kilometers of solar cells, and some, most likely rather large, system to store some 27600 MwH of power for the nights. Now that you have your power plant, you have to deal with the fact that your solar cells are going to start to degrade, at a rate somewhere between .5% to 1% a year, depending on the type, so within 20 years you might be getting only 80 to 90% of your new plant output.
So, how good does solar look now?