Laurentian Energy Authority, LLC, Biomass Energy Project
2012-10-4 · The natural gas boiler is used for backup to the coal fired boilers. The Hibbing plant operates three boilers at its plant, each of which is currently fired with coal, although two of them have gas firing capability. HPU also operates two natural gas fired boilers located at the Hibbing High School. Both utilities also provide city water and ...
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