23 Nov '11, 9am

Minnesota Study Finds Promise in Using Abandoned Mesabi Iron Range Mines to Store Wind Power

Minnesota Study Finds Promise in Using Abandoned Mesabi Iron Range Mines to Store Wind Power

Photo courtesy Mining Artifacts The potential is there to re-purpose abandoned open pit iron ore mines in northeastern Minnesota’s Mesabi Iron Range to store energy from wind turbines and farms, according to a team of researchers at the University of Minnesota-Duluth’s Natural Resources Research Institute (NRRI). Doing so would not only enhance the competitiveness of wind power, it would make beneficial use of land that’s been severely degraded.Wind energy has been growing fast in Minnesota, thanks to its geography, climate and impetus from the state’s Renewable Portfolio Standard (RPS), which requires that utilities and electric co-ops at least 25% of their electricity from qualifying renewable sources by 2025. Thing is, wind power production typically picks up at night when wind energy is higher. Electricity demand is lower at night, however, and suppliers selling power ...

Full article: http://cleantechnica.com/2011/11/23/minnesota-study-finds...

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