Andy Karpinski is a retired electronics engineer who spent his career designing electronic circuits for the automotive and aerospace industries. He has also spent over 35 years trying to make his house as energy efficient as possible. His highest monthly electric bill ever was $41.55. His typical monthly bill for the four years prior to adding solar power to his house was less than $20. His house has been running on solar power for over five years now.

He is also a songwriter and musician and creator of the Stone Marmot cartoon rock band. The band website is The “Rant and Raves Blog” on this site has many articles on saving energy, solar power, and other topics.