This document examines the waste management costs of PLTS and battery waste, specifically conducting case studies on three islands in East Nusa Tenggara, namely Flores Island, Sumba Island and Timor Island. Furthermore, this document summarizes regulations related to PLTS waste management, identifies PLTS waste management solutions, provides recommendations for waste management plans and policy improvements, as well as identifying transportation routes and costs for transporting waste, and identifying institutions and companies that can carry out waste processing.