## Thailand’s 2026 TOU Tariff Structure Explained
The 2026 TOU tariff has been revised by the Energy Regulatory Commission (ERC) to better reflect Thailand’s changing energy landscape. Here’s the complete breakdown:
### 1. Tariff Periods
The day is divided into three distinct periods with different pricing:
#### Peak Hours
– **Weekdays (Monday-Friday):** 11:00 AM – 02:00 PM and 05:00 PM – 09:00 PM
– **Weekends & Holidays:** No peak period
– **Rate:** Highest price per kWh (varies by consumption level)
#### Mid-Peak Hours
– **Weekdays:** 08:00 AM – 11:00 AM and 02:00 PM – 05:00 PM
– **Weekends & Holidays:** All day
– **Rate:** Middle price per kWh
#### Off-Peak Hours
– **All days:** 09:00 PM – 08:00 AM the following day
– **Rate:** Lowest price per kWh
### 2. Seasonal Variations
The 2026 TOU tariff also includes seasonal adjustments:
#### Hot Season (March-June)
– Peak hours: 11:00 AM – 03:00 PM and 05:00 PM – 10:00 PM (extended due to higher air conditioning demand)
– Higher peak rates compared to other seasons
#### Rainy Season (July-October)
– Peak hours: 11:00 AM – 02:00 PM and 05:00 PM – 09:00 PM (standard)
– Slightly lower peak rates
#### Cool Season (November-February)
– Peak hours: 11:00 AM – 02:00 PM and 05:00 PM – 08:00 PM (shorter due to lower cooling demand)
– Lowest peak rates among all seasons
### 3. Consumption Level Tiers
The TOU tariff also uses a tiered pricing structure based on your monthly consumption:
| Consumption Tier | Peak Rate (THB/kWh) | Mid-Peak Rate (THB/kWh) | Off-Peak Rate (THB/kWh) |
|