They do sell O/L listed, plug and play solar collectors
(Westinghouse/Akeena is one)
These come with a NEMA 5-15 plug, you just mount the collector on any
surface that faces the sun and plug it in to a handy receptacle.
Why would you need an electrician or solar contractor for that?
You still get no tax relief from the government when you buy them.
Harry's proven he's not handy at all! Remember the deck he did himself
and the picture had the contractor's trailer in it?!
One huge disadvantage of discouraging DIY installers is you are
choking off innovation. A contractor is going to install a product
that has been around long enough to be tested 6 ways from Sunday and
he will choose the one that gives him the highest profit margins.
A DIY guy might actually come up with a much better system and he will
be trying something new, not just the same old tired technology that
is already in the distribution network.
I suppose you have heard of the Edison paradox.
If Edison had actually gone to college, he would have been told the
things he invented, were not possible by people with no imagination.
But Edison was innovative and grasped new technology, the FOXites are
afraid of that.