Research into how Minnesota could reach a 2050 solar penetration target of 70 % has argued that overbuilding solar projects and accepting utility curtailment would be ‘ considerably ’ cheaper than adding energy storage . In "other generation" the report authors include existing non-renewable resources or imports from MISO. The study argues that the falling costs of solar projects allow additional capacity to be added at less cost than co - locating utilities to make use of any surplus generation . However , the Minnesota Solar Energy Industry Association has pushed back , claiming such a move would make financing solar projects difficult .
Research into how Minnesota could reach a 2050 solar penetration target of 70 % has argued that overbuilding solar projects and accepting utility curtailment would be ‘ considerably ’ cheaper than adding energy storage . The study argues that the falling costs of solar projects allow additional capacity to be added at less cost than co - locating utilities to make use of any surplus generation . However , the Minnesota Solar Energy Industry Association has pushed back , claiming such a move would make financing solar projects difficult .