Thai Energy Ministry plans sweeping tariff revamp for June bills

The Ministry of Energy is pressing ahead with a major overhaul of the entire electricity tariff structure for the first time in more than 20 years. Its plan to introduce a new tiered tariff structure is creating ripples for households using more than 400 units a month and for the business sector.

The planned reform of the overall energy price structure will be submitted to the National Energy Policy Council (NEPC) on Wednesday (April 29, 2026), before being presented to the Cabinet. The new electricity tariff structure is intended to take effect in time for the June 2026 billing cycle, under the policy of “use less, pay less; use more, pay more”.

Akanat Promphan, Energy Minister, said the Ministry of Energy was discussing the electricity tariff restructuring with relevant agencies. He said the main problem behind high electricity costs was power purchases from past renewable energy projects that received an Adder, or additional power purchase tariff, with a committed combined capacity of 4,000 megawatts, or 10% of the country’s total electricity generating capacity.