Over the years I have had a few SHA256 and SCRIPT miners (to say the least) but my 1KW solar array is by far my favourite miner.
So far it has not only mined the most coins but reduced the electric bill and provided power to feed my mining habit.
My solar array has generated:
a few Solarcoins - SLR
and about 20,000,000 Greencoins - GRE
It has also provided power for:
Block Erupters
BitForce Jalapenos
BlueFurys
AntMiners
and our home
If you have a solar system, please have a look at Solarcoin and Greencoin to earn a little extra crypto!