In Phase 2 of this proceeding, the Commission may find it necessary to retain a consultant with expertise to study the utilities' climate zones and any suggestions for changes to those climate zones. Accordingly, the Commission delegates to the assigned Commissioner the authority to retain for this proceeding, on behalf of the Commission, a consultant or consultants for the purpose of reviewing the utilities' climate zones, reviewing any proposals relating to climate zones, and if necessary, suggesting changes to the climate zones.