Energy Storage Source Metadata Field Value source cpi source_version GLCF 2025 source_id CPI-ES-002 sector Energy Systems subsector Energy Storage mitigation Y adaptation N last_checked 2026-05-26 CPI Definition & Scope Energy Storage in CPI's GLCF framework covers finance directed at technologies that store electricity or thermal energy for later dispatch, enabling greater integration of variable renewable energy sources. The 2025 edition expanded coverage to include energy storage as a distinct tracked category, recognizing its critical role in the energy transition. CPI tracks investment across battery storage (grid-scale and behind-the-meter), pumped hydro storage, compressed air, and emerging long-duration storage technologies. Subsectors & Examples Battery Energy Storage Systems (BESS) — lithium-ion grid-scale, behind-the-meter commercial/residential Pumped Hydro Storage — conventional and closed-loop systems Thermal Energy Storage — molten salt, ice storage, phase-change materials Mechanical Storage — compressed air, flywheel, gravity-based Long-Duration Storage — iron-air batteries, flow batteries, liquid air Mitigation & Adaptation Classification Energy storage is classified as mitigation in CPI's framework. By enabling higher penetration of variable renewables and reducing curtailment, storage directly supports decarbonization of the power sector. It also supports grid resilience, but the primary classification remains mitigation. LATAM Relevance Energy storage deployment in Latin America is accelerating as countries integrate more solar and wind capacity. Colombia's energy transition roadmap includes storage auctions to complement La Guajira wind projects. Chile leads the region in lithium-ion deployment and is home to significant lithium reserves. Peru's grid intermittency challenges from growing solar create opportunities for storage investment. Costa Rica, with its near-100% renewable grid, explores storage for managing seasonal hydro variability. Cleantech Taxonomy Crosswalk Maps to Cleantech Taxonomy sector ES (Energy Systems) under storage-specific nodes. Cross-references with IN (Industry) for battery manufacturing and XS (Cross-Sectoral) for grid flexibility services.