Minnesota Public Radio slideshow:
Ice storm pushed electric grid to its limit
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Officials say improvements to the power grid system since 2003 helped prevent a regional blackout during the recent ice storm and blizzard. (MPR file photo/Dan Gunderson)

Officials say improvements to the power grid system since 2003 helped prevent a regional blackout during the recent ice storm and blizzard.

(MPR file photo/Dan Gunderson)
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