Proposed Guidelines, Standards and Regulations for Renewable Energy Generation Systems Connecting to the Palau Central Grid. These Guidelines refer to the installation of renewable energy (RE) generation systems, (solar photovoltaic (PV) and wind turbines) up to 100kVA connected to the Palau Public Utilities Corporation(PPUC) central grid supplying Koror and Babeldoab. Report prepared for SPC by IT Power (Australia) Pty Ltd under the NorthREP Project.