Turning nuclear power to commercial use, the Nuclear Plant created a controlled nuclear reaction. This operation was simple in theory; unfortunately, related accidents and issues of waste disposal were not. If cooling systems failed, a reactor's heat could rise turning fuel rods into molten uranium hot enough to breach the core. Even if a breach never occurred, a plant still generated radioactive waste that must be stored for hundreds of years in containers of glass and lead. As always, energy was not free.