How Many Baht Per Unit? 2026 — Home / Rental / Business / Farm
The per-unit price of electricity (THB/kWh) for the current May–Aug 2026 period, broken down by user type — with the residential progressive tiers, tenants' legal rights on rental rooms, and a real worked bill. Sourced from the ERC/PEA/MEA.
Residential electricity in Thailand for the current period (May–Aug 2026) averages about 3.95 THB/unit (including the Ft of 0.1623 THB/unit, before 7% VAT). Homes are billed on progressive tiers — the more you use, the more the top units cost. For rental rooms / dormitories the law caps the rate at 4.18 THB/unit, so a landlord cannot charge more. Small-to-medium businesses pay around 4.18 THB/unit, and ordinary farms pay 3.70–4.15 THB/unit. The tables and worked bill below are sourced from the ERC/PEA/MEA. See the full combined tariff on the current electricity tariff page and the big picture in the Thailand electricity guide.
Price Per Unit by User Type (May–Aug 2026)
Figures are in THB per unit (kWh) and include the current-period Ft of 0.1623 THB/unit, but exclude 7% VAT (add about 7% VAT for the final figure on your bill).
| User type | Rate (THB/unit) | Note |
|---|---|---|
| Residential / home (Type 1) | 3.70–4.15 (avg 3.95) | Progressive tiers; top units cost more. No demand charge. |
| Rental room / dorm / condo | ≤ 4.18 (legal cap) | A utility meter pays the home rate; a landlord may not charge above 4.18. |
| Small–medium business (Type 2–3) | ≈ 4.18 | Shops, offices, commercial buildings — flat rate; mid-size can opt into TOU. |
| Agriculture / farm | 3.70–4.15 (ordinary meter) | Ordinary farms pay the home rate; the lower Type-7 pumping tariff is for registered groups only. |
* All figures include the current Ft of 0.1623 THB/unit but exclude 7% VAT. The ERC adjusts Ft every ~4 months — see the Ft history table for past periods.
† The 4.18 THB/unit rental cap follows the Central Committee on Prices of Goods and Services notification, requiring landlords to bill tenants no more than the utility's rate plus actual service costs.
Next update: when the ERC announces the Sep–Dec 2026 Ft (typically late August).
Residential Progressive Tiers (Type 1)
Homes are not billed at one flat rate — they use a "tiered" structure where extra units cost more as you use more, split into two groups by monthly usage. The figures below are base energy charges (before Ft 0.1623 and 7% VAT).
Use ≤ 150 units/month (Cat 1.1)
Low-usage homes are billed in steps from 2.3488 to 3.7171 THB/unit, plus a 8.19 THB monthly service charge — typical for small homes and low-use condos.
Use > 150 units/month (Cat 1.2)
Most homes fall here: the first 150 units cost 3.2484, units 151–400 cost 4.2218, and units 401 and above cost 4.4217 THB each, plus a 38.22 THB monthly service charge.
Worked Example: A Home Using 300 Units/Month
A home using 300 units/month falls in Cat 1.2 (>150 units). Step by step:
- First 150 units × 3.2484 = 487.26 THB
- Units 151–300 (150 units) × 4.2218 = 633.27 THB
- Base energy subtotal = 1,120.53 THB
- Ft: 300 units × 0.1623 = 48.69 THB
- Monthly service charge = 38.22 THB
- Subtotal before VAT = 1,207.44 THB
- VAT 7% = 84.52 THB
Figures approximate the MEA/PEA May–Aug 2026 rates; an actual bill may vary slightly by area and service charge. See the detailed TOU rate schedule for time-of-use customers.
Whether your per-unit price is cheap or expensive depends on the Ft (adjusted every 4 months) and how much you use. If your home or business uses a lot of power during the day, solar cuts the units you buy from the grid (units you self-generate pay no Ft). Estimate your savings in the solar calculator, or understand where the Ft comes from in what the Ft is.
About this page
Compiled by the CapSolar team, led by Frank Lee (Founder). Every per-unit rate and Ft figure is cross-checked against official sources (ERC/PEA/MEA). This page is updated each time the ERC announces a new Ft period (every ~4 months). Spot an error? Let us know.
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