Unilever US, which purchases 100% of its electricity from renewable sources for all of its sites through renewable energy certificates (RECs), says it is taking the “next step”in the process vi a partnership with NRG Energy, Inc.  The two firms have formed of a strategic accord that they contend “revolutionizes the relationship between the energy and consumer products sectors, and further demonstrates the importance of collaboration to tackle global challenges.”   Through this novel partnership,...