Vietnam’s two-part tariff sets a regional precedent

A regulatory shift in Vietnam has drawn attention from across the region.

With the implementation of Circular No. 62/2025/TT-BCT in January 2026, Vietnam became the first major ASEAN economy to introduce a formal two-part tariff structure for battery energy storage systems, introducing separate capacity and energy charges that pay batteries for both availability and delivery.

Writing for Energy-Storage.news, senior climate and energy strategist Sunita Dubey described the move as a decisive shift away from energy-only compensation and toward a framework that recognises storage as a multi-service asset.

The reform addresses a long-standing structural barrier across ASEAN markets, where revenue volatility and policy ambiguity have kept developers and lenders at bay.