Minnesota's electric grid, explainedApril 29, 2015 3:08 p.m.Share storyTwitterFacebookListenThis segment of the CapX2020 power line runs along Interstate 94. Electricity began running in the first phase from Monticello to St. Cloud, Minn. in 2011.Conrad Wilson | MPR photo fileHow does the electric grid work in Minnesota? What innovations have we seen in recent years? And what changes are likely in the future? Elizabeth Wilson of the University of Minnesota joined MPR News' Tom Weber to talk about her research.