Understanding Thailand's TOU Electricity Rates: A Guide for Factory Owners

What Are TOU (Time of Use) Electricity Rates?

If you own or manage a factory in Thailand, understanding your electricity tariff structure is crucial for controlling costs. The TOU (Time of Use) rate system charges different rates depending on when you use electricity.

How TOU Rates Work

Peak Hours: Mon-Fri 09:00-22:00 at ~5.0-5.8 THB/kWh

Off-Peak: Mon-Fri 22:00-09:00, weekends and holidays at ~2.6-2.8 THB/kWh

Why TOU + Solar = Maximum Savings

Solar panels generate electricity during peak hours (09:00-17:00) when TOU rates are highest. A factory consuming 50,000 kWh/month during peak could save approximately 2 million THB annually with a 200 kW solar system.

Real Cost Example

Without Solar (TOU Peak at 5.5 THB/kWh): 275,000 THB/month

With 200 kW Solar (covering 60% peak): 110,000 THB/month

Annual savings: approximately 2 million THB

Check Your Electricity Rate

Your bill shows your tariff type. Not sure how to read it? Try our free Bill Analyzer.

Free Solar Tools

CapSolar Co., Ltd. - Bangkok-based solar energy company. Free consultation: 02 124 5414

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