Energy storage stands at the heart of integrating renewable energy, fortifying grid stability, and building resilient urban energy systems. This report explores the evolution of storage technologies, with particular emphasis on battery energy storage systems (BESS). It appraises technology frameworks, related safety standards, policy landscapes and market dynamics, offering analyses regarding BESS deployment, grid integration, operational practices, and their participation in electricity markets, as well as investment strategies and business models of BESS projects. These are complemented by illustrative case studies from China that highlight technology advancement and innovative applications of energy storage.

Concluding with targeted policy recommendations, the report serves as a reference for policymakers and stakeholders to accelerate the adoption of energy storage, foster best practices, and support region’s urgent energy transition towards renewables and resilient energy future in APEC cities.