[PapaBear3625]

Michigan gets 80% of the insolation that southern state like Florida get.

Most of Michigan gets less than half the solar energy that most of Florida gets. See solar energy map

[Kellis91789]

Yeah, there is conflicting info. Not sure who to believe.

[He says there’s a misconception about a lack of sunlight in the Great Lakes State. “Germany has led the world in solar installations for the last two or three years, and they get fewer hours of ‘insolation’, or viable sunlight than we do in Michigan,” said D’Alecy. “Michigan gets 80 percent of the solar radiation that Jacksonville, Florida receives.]

From:

http://www.michigan.org/mbr/enewsletter/combo.asp?ContentId=6890C2E7-CBB5-464E-84E9-8CA50F56BF32

[Robert A Cook PE]

Michigan gets 80% of the insolation that southern state like Florida get.
Most of Michigan gets less than half the solar energy that most of Florida gets.

?

Look at even a “southern” city like Atlanta: 3.3 insolation compared to the max at 5.5 (at that only for 4-5 hours per day - from 10:00 until 3:00!): that’s = 60%