but is it efficient enough to grabt you spending your time on digging up uranium every time you run out?
I have to agree with the OP here and say that Nuclear power is Teir 3 while solar panels are Teir 4
since 1 solar panel requires 1 generator, 3 coal and outputs 1EU/t for half a day / night cycle but is eternally productive with no further regulation yes nuclear generators are already expensive enough if you want to produce much energy without blowing holes in your world.
First of all you get uranium as a side-product from your normal mining, hence there really is no "digging for uranium". Also when you get breeder reactors you can effectively sevenfold the uran you mine, since you can make 8 depleted cells from 1 uran and then enrich them using a single uran cell (that for the record will still produce energy).
If ones nuclear generators blow up it's because:
1. You are running a positive generator (but why bother?) in SMP and gets DC'ed, so if there are other ppl around to keep it loaded it will blow
2. Someone grief your generator in SMP (But they would wreak you somehow anyway, so...)
2. Yo doin eeet wongh!