For some solar users, discreet looking panels may be preferable to shiny ones, or to conspicuously ugly ones. For others, panels which visually shout “look - I am up here” may be important.
Flat glazing for panels may, in some circumstances, be considered better practice than curved surfaces since these are more likely to tie in with building aesthetics.
Having the opportunity to order solar panel frames in specific colours, similar to the colour of nearby building components such as roof tiles, slates etc may be preferable on occasions where planning criteria are tight.
For some people, beauty means complexity, for others it is simplicity: the choice of technologies caters for all tastes across this spectrum.

Solar keymark certified
Micropower council
Renewable Energy Association
Association for Environment Conscious Building