“Nuclear plants are auatclly very safe, their nuclear waste is however one of the big drawbacks it takes a very long time for it to become safe thousands upon thousands of years so it needs to be stored somewhere and be kept safe for that amount of time needless to say there is no structure so far that can remain secure and also contain barrels of waste for that amount of time. the safety of a nuclear powerplant is not auatclly a big concern the scenes in movies where powerplants act like nuclear bombs are fictional as nuclear bombs use completley different principals to operate however meltdowns can occur like chernobyl but these are very rarethere is also the problem of NIMBY or (not in my back yard) where people can see the benefits of them but do not want them nearby them so finding areas near enough to send the energy without alot of energy loss without being too close to poulation centers is a difficult task. also the nuclear waste has been used by terrorists where they surround a standard bomb with nuclear waste creating what is called a dirty bomb this spreads nuclear waste over large areas and has lasting results.solar panels are very safe and efficient even in poor lighting conditions they can power a home however in order to power the entire continental united states on a full size map a post stamp represents the amount of solar panels that would be required (if they were all grouped together) also cost is a big factor while the solar panels will essentially pay electricity bills for you it can take around 20 years before a profit is seen leaving it an undesireable option for the poorer people.P.S. you could also mention hydro electric and windmills they are also goodGood luck with your project”