BANGKOK, Thailand – Thailand is tightening its electricity pricing, with a new tiered tariff system set to take effect in June 2026 for 23.2 million households, raising costs for high-volume users.
Who pays more – and who pays less
The new system, structured like income tax, charges a maximum of 3 baht per unit for monthly consumption under 200 units. According to the Energy Ministry, this benefits about 15.4 million households, typically small apartments and frugal Thai families.
Consumers using between 200 and 400 units will pay the current standard rate of 3.95 baht per unit. However, the approximately 3.2 million households exceeding 400 units will face a rate of over 5 baht per unit, up from about 4.50 baht previously. This marks an increase of more than 1 baht per unit for the top tier.
400 units – Where is the everyday limit?
While 400 units per month may sound high, it is not necessarily so. A single air conditioner running at night consumes around 150 to 200 units monthly. Operating two ACs, a refrigerator, and occasionally a kettle can quickly push consumption over this threshold.
Residents in multi-room homes during Thailand’s summer will find it hard to stay under the limit. Expats accustomed to Western comfort—with ACs in bedrooms and living rooms plus water heaters—are expected to regularly exceed the 400-unit mark.
What the minister says – and what it means
Energy Minister Akanat Promphan explained that the current tariff system dates from before the year 2000 and has remained unchanged for over 20 years. He noted that Thailand now generates more than 60% of its electricity from natural gas, with nearly a third as expensive imported LNG. Global price hikes, such as those triggered by the Middle East situation, affect all consumers.
The minister’s message is clear: heavy users should pay more. The government advises households consuming over 480 to 500 units monthly to install rooftop solar panels. Subsidized loans are planned, with monthly payments of around 600 baht over ten years at 3% interest for a 2-3 kilowatt system.
“The previous tariff system has not changed in over 20 years.”
said Akanat Promphan, Energy Minister.
What to watch out for now
The reform has not yet been finalized. On April 29, 2026, the plan will go to the National Energy Policy Council (NEPC) and then to the cabinet. The target is implementation from the June 2026 billing cycle. Consumers unsure of their monthly usage should check their MEA or PEA bills, which show unit consumption.
For those consistently above 400 units, two options exist: reduce consumption or budget for higher bills. According to the Energy Ministry, a solar panel system can pay for itself in five to eight years, provided the announced subsidies materialize as promised.