A full-size grid-tied solar array with about 15 or 20 panels can cost anywhere between $25,000 and $40,000 upfront depending on the size. AC panels are not cheaper, but proponents say the modularity makes it easier to install a few panels, and then later connect more to the existing set. More flexibility.
Evil, in a general context, is the absence or opposite of that which is described as being good. Often, evil is used to denote profound immorality. In certain religious contexts, evil has been described as a supernatural force. Definitions of evil vary, as does the analysis of its motives.
The Angel is a member of an order of heavenly beings who are superior to man in power and intelligence. By nature angels are spiritual beings. Their nature is superior to human nature and they have superhuman power and knowledge. The are not, however, all-powerful or all-knowing.