#ACEF2015 Deep Dive Workshop run by #USAID, #giz_gmbh, #NREL, #Clean_Energy_SC Deep Dive Workshop on RE Grid Integration run by USAID, GIZ, U.S. National Renewable Energy Laboratory (NREL), and Clean Energy Solutions Center The rapid growth of renewable energies in Asia, especially solar and wind power, increases the challenges of incorporating variable renewable energy generation into power systems throughout the region.