Caterpillar will supply NorthWestern Energy with an integrated power solution that includes six Cat® G20CM34 gas generator sets for a new 58 MW power plant near Huron, S.D. By providing fast start capability and highly efficient energy production at varying load levels, the Cat G20CM34 generator sets will deliver the capacity needed for reliable, safe, and affordable service while accounting for the intermittent energy supply from renewable resources.