Electricity and water in Thailand: the real costs
The honest answer with numbers, for international buyers
The state PEA electricity tariff runs around 4.2 THB per kWh including surcharges (July 2026), but some buildings resell power through their own meters at 6 to 10 THB. A realistic one-bedroom pays 1,500 to 3,500 THB for electricity, 150 to 500 for water and 600 to 800 for fibre internet monthly. The key pre-purchase question: does the unit have a direct government meter?
The aircon math
Air-conditioning drives the bill: a modern 12,000-BTU unit running 10 to 12 night hours at 26 degrees costs roughly 1,000 to 1,800 THB per month. Inverter units, timers and 25 to 26 degree settings keep it civilised.
The developer-meter trap
Buildings without direct PEA connections resell power at 6 to 10 THB per kWh, more than double the state tariff, easily a four-digit THB difference monthly. Always ask for a direct government meter; on every project we broker, we tell you upfront.
Water and internet
Tap water is famously cheap at usually 100 to 300 THB monthly; fibre internet runs 600 to 800 THB. The complete monthly picture including the common fee lives at running costs.
Frequently asked questions
What does electricity cost per kWh?
The state PEA tariff is around 4.2 THB per kWh including surcharges (July 2026), on a progressive scale. Developer meters often charge 6 to 10 THB, so check the connection type first.
Why is my bill high despite low use?
Usually a resold-power meter at 6 to 10 THB per kWh, or an old inefficient aircon running cold. Checking the tariff beats buying a new fridge.
How much is water per month?
Typically 100 to 300 THB, rarely above 500 even with daily laundry. Some buildings add small margins or minimums via private meters; it should be transparent.
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