Thailand Residential Electricity Rate PEA/MEA 2026

Current Thailand Electricity Rate May–Aug 2026

Thailand electricity price for May-Aug 2026 averages 3.95 THB/kWh (Ft surcharge 0.1623 THB/kWh). Residential users pay 3.70-4.15 THB/kWh. Medium businesses (Type 3) pay 4.18 THB/kWh. Large industrial factories (Type 4) on TOU pay 3.80 THB/kWh off-peak and 5.27 THB/kWh on-peak.

How Much Is 1 kWh in Thailand (2026)?

1 kWh of residential electricity in Thailand 2026 averages 3.95 THB (approximately 4.23 THB including Ft + VAT). For Type 4 industrial TOU, on-peak is 5.27 THB/kWh and off-peak is 3.80 THB/kWh, per the ERC May-Aug 2026 announcement.

Thailand TOU Electricity Rate Table 2026 (2569)

How many baht per unit is the TOU 2026 rate? On-Peak is 4.1025 THB/unit and Off-Peak is 2.5849 THB/unit for Type 3–4 at 69 kV and above (before Ft 0.1623 THB/unit and 7% VAT).

Off-Peak holidays: every Saturday and Sunday, plus announced public holidays and Labour Day, count as Off-Peak (2.5849 THB/unit) all day — except substitution (carried-over) holidays, which follow the weekday schedule.

Table values are base energy rates, before the May–Aug 2026 Ft (+0.1623 THB/unit) and 7% VAT · per the PEA tariff schedule set by Thailand's ERC · see the full TOU table for every voltage tier below.

How Many Baht per Unit Is Electricity in 2026 (2569)? By Customer Type (May–Aug Update)

Electricity in Thailand for the May–Aug 2026 (2569) period averages 3.95 baht per unit (including the Ft of 0.1623 THB/unit, before 7% VAT). Residential users pay 3.70–4.15 baht/unit, small-to-medium businesses around 4.18 baht/unit, and large TOU factories pay Off-Peak 3.80 / On-Peak 5.27 baht/unit. The table below shows how many baht per unit each customer type pays in the current period.

Sources: tariff structure from the ERC and the current-period Ft from MEA · figures include the May–Aug 2026 Ft (+0.1623 THB/unit), before 7% VAT.

Off-Peak TOU Holidays 2026 (2569): Weekends + Public Holidays

Under the TOU system, every Saturday and Sunday plus announced public holidays are billed as Off-Peak all day at 2.5849 THB/unit (Type 3–4 at 69 kV and above) for the full 24 hours. The table below lists the 2026 (2569) Off-Peak public holidays per Thailand's official 2569 government holiday calendar (before Ft 0.1623 THB/unit and 7% VAT).

Note: substitution (in-lieu) holidays carried over to a weekday — e.g. Mon 1 Jun for Visakha Bucha and Mon 7 Dec for Father's Day — follow the WEEKDAY TOU schedule (with On-Peak 09:00–22:00), not all-day Off-Peak. Every Saturday and Sunday is always Off-Peak. Any extra Cabinet-declared bridge holiday should be checked against the latest official 2569 holiday calendar.

The Off-Peak rate of 2.5849 THB/unit is a base energy rate (Type 3–4 at 69 kV and above), before the May–Aug 2026 Ft (+0.1623 THB/unit) and 7% VAT · per the PEA/MEA tariff schedule set by Thailand's ERC and the official 2569 public-holiday calendar.

Provincial (PEA) vs Metropolitan (MEA) Electricity Rates 2026

The 2026 Provincial Electricity Authority (PEA) rates use the same structure and energy charges as the Metropolitan Electricity Authority (MEA), set by Thailand's ERC as a single national schedule. So the TOU MEA 2569 and TOU PEA 2569 On-Peak and Off-Peak rates per unit are the same (On-Peak 4.1025 / Off-Peak 2.5849 THB/unit for Type 3–4 at 69 kV and above); they differ mainly by service area and a small monthly service charge. The table below compares PEA (74 provinces) with MEA (Bangkok, Nonthaburi, Samut Prakan) for May–Aug 2026 (before Ft 0.1623 THB/unit and 7% VAT).

PEA vs MEA — What's the Difference?

Thailand has 2 main electricity distribution authorities covering different areas. Who you pay depends on where your business is located.

Tariff rates from both authorities are very similar, but there may be slight differences in monthly service charges and Ft rate adjustments, which may not be synchronized.

5 Thailand Electricity Customer Categories — Which Do You Belong To?

Thailand's ERC classifies electricity users into 5 main categories per the most recent notification (ERC 2024), segmented by consumption volume and business type. Your category directly determines your tariff rate and bill structure.

Thailand 2026 Tariff Rate Table — Categories 1-5 (THB/kWh)

The table below summarizes base energy rates (before Ft and VAT) per the latest ERC announcement, segmented by customer category. The 2026 tariff structure is identical to 2025 — only the numerical values are adjusted each quarter.

Note: base rates exclude Ft + 7% VAT + monthly service fee; the Ft row shows the current May-Aug 2026 value. For TOU: On-Peak = 09:00-22:00 Mon-Fri; Off-Peak = 22:00-09:00 Mon-Fri and all day Sat-Sun-holidays.

TOU Off-Peak 2026 (2569): What Hours & How Many Baht per Unit?

In the 2026 (2569) TOU system, Off-Peak runs 22:00–09:00 Monday–Friday plus all day Saturday, Sunday, Labour Day, and public holidays (except substitution holidays), at 2.5849 THB/unit (Type 3–4 at 69 kV and above). On-Peak runs 09:00–22:00 Monday–Friday at 4.1025 THB/unit, making Off-Peak about 37% cheaper than On-Peak. These exclude the Ft surcharge (0.1623 THB/unit) and 7% VAT, per the PEA tariff schedule set by Thailand's Energy Regulatory Commission (ERC).

• Off-Peak: 22:00–09:00 Mon–Fri + Sat–Sun/holidays → 2.5849 THB/unit (cheapest)
• On-Peak: 09:00–22:00 Mon–Fri → 4.1025 THB/unit (most expensive)
• Add Ft 0.1623 THB/unit (May–Aug 2026 period) and 7% VAT on top of every period

TOU — Time of Use Tariff

TOU (Time of Use) is an electricity pricing system that charges different rates depending on the time of day. Like phone calls that cost more during business hours — On-Peak periods are more expensive than Off-Peak.

Thailand TOU Electricity Rate 2026 (พ.ศ. 2569) — How Many Baht per Unit?

Thailand's 2026 (พ.ศ. 2569) TOU (Time of Use) electricity rate from PEA for medium-to-large businesses (Type 3–4) at 69 kV and above is On-Peak 4.1025 THB/unit from 09:00–22:00 Mon–Fri, and Off-Peak 2.5849 THB/unit from 22:00–09:00 plus weekends/holidays. Add the Ft surcharge (0.1623 THB/unit) and 7% VAT for the final rate.

Ft — The Fluctuating Fuel Charge

Demand Charge — The Hidden Bill Trap Factories Must Know

What Does PDP 2024 Mean for Factory Owners?

Worked Example — How Much Does a 5 MW Factory Pay Per Month?

Assume a 5,000 kW industrial factory (Cat 4.2 TOU) using 2,000,000 kWh/month: 65% On-Peak (1,300,000 kWh) + 35% Off-Peak (700,000 kWh), with measured peak demand of 4,500 kW.

What Makes Up Your Electricity Bill?

How to Calculate Your Factory's Actual Electricity Bill — 5 Steps

1. 1

   Step 1: Identify your utility (PEA or MEA)

   Open your latest electricity bill and check the utility logo. If your facility is in Bangkok, Nonthaburi, or Samut Prakan, you're a MEA customer. Everywhere else is PEA.

2. 2

   Step 2: Classify your customer category (1-5)

   Check Contract Capacity (kW) on your bill: < 30 kW = Cat 2; 30-999 kW = Cat 3; ≥ 1,000 kW = Cat 4; specific business = Cat 5; residential = Cat 1.

3. 3

   Step 3: Choose between Flat and TOU

   If you're Cat 3, you can choose TOU or Flat (Cat 4 must use TOU). Factories running only daytime (9:00-17:00) should pick TOU. For 24-hour operations, run a comparison before deciding.

4. 4

   Step 4: Calculate Energy + Demand + Ft + service fee + VAT

   Energy Charge = kWh × rate (split On-Peak/Off-Peak if TOU); Demand Charge = peak kW × demand rate; Ft = total kWh × latest Ft value; then add monthly service fee and multiply by 7% VAT.

5. 5

   Step 5: Compare with a Solar PPA

   Plug your numbers into our Bill Analyzer tool to see how a self-consumption solar install or a PPA contract would reduce your bill. Most Cat 4 factories save 30-45% in year 1.

How Can Solar Reduce Your Electricity Bill?

How to Apply for a TOU Meter with PEA / MEA in 2026 (2569): Steps, Costs, and How Long It Takes

Every customer type — residential, business, and factory — can request a switch to a TOU meter. In the provinces, apply at your local PEA office or via the PEA Smart Plus app; in Bangkok, Nonthaburi, and Samut Prakan, apply at your MEA district office or through MEA e-Service. A meter-change fee applies per the utility's published announcement, and processing typically takes a few weeks.

1. 1Check whether the TOU rate suits your usage profile — compare TOU vs TOD and the demand charge
2. 2Prepare documents: your latest electricity bill, plus a national ID card (individuals) or company registration certificate (businesses/factories)
3. 3Submit the request to PEA/MEA (local office or online channel) and pay the meter-change fee per the published schedule
4. 4Wait for the TOU meter installation — the TOU rate starts from your next billing cycle

Related Guides

Now that you understand tariffs — plan your solar cost reduction

Related Articles