Why is the Midwest failing to Harvest Solar?

World Solar Farms Map

Warren Buffet seems to love shipping coal and oil around on trains in the Midwest.  Wow has he failed to provide any leadership in the Midwest.  The entire World is far ahead of the Midwest with harvesting solar.  Search the map for "solar farms" and you will know what I mean.  I am quite embarrassed to be honest as a native of Iowa.  

Apparently, Berkshire Hathaway has a new renewable energy investment group and have behind the investment of a solar farm in Minnesota.   Read more.