Bangkok: The issue of "hidden electricity charges" has surged into public discourse after Energy Minister Ekanat Promphan revealed that streetlight and public lighting expenses have been embedded in household electricity bills for over ten years without transparent separation. This concealed charge accounts for approximately 10-15 satang per unit, which translates to 2-2.5% of Thailand's total electricity consumption. In 2023, the National Energy Policy Council (NEPC) resolved to separate these charges into distinct bills. However, the Metropolitan Electricity Authority (MEA) and the Provincial Electricity Authority (PEA) cited system unpreparedness, and no definitive timeline for implementing public meters has been established.
According to Thai News Agency, the hidden electricity costs arise from a mechanism involving non-technical losses, where excess costs are averaged and included in household bills through the Ft (Fuel Adjustment Charge) formula. This method means that users unknowingly subsidize public electricity usage, as these charges are not itemized on their bills for verification. Non-technical losses encompass public lighting costs, which are added to the base electricity tariff structure and distributed among all users.
The financial impact on households is significant. For instance, a household consuming 300 units of electricity per month may incur hidden public electricity charges of 30-45 baht monthly, or 360-540 baht annually. This is despite already contributing to local and property taxes. The NEPC's 2023 directive to separate these charges remains unfulfilled due to system and meter readiness issues. The NEPC recently postponed this classification, as proposed by the Energy Regulatory Commission (ERC).
The core issue is not technological inadequacy but rather who will bear the transition costs. If separated, relevant agencies such as the Department of Highways or local administrative organizations would be responsible for these expenses, increasing their budgetary burdens. Moreover, the cost of installing public meters nationwide is a significant investment without a designated payer, further complicating the transition.
Simultaneously, the government is implementing three electricity pricing reforms: a progressive rate system, separating public electricity bills, and renegotiating power plant contracts. However, these reforms, including the separation of public electricity bills, face delays due to opposition and unresolved legal issues.
Other countries have successfully addressed this problem. The United States and the United Kingdom separate public electricity costs by metering streetlights and charging municipal budgets directly, while Brazil's COSIP model includes a clear billing line for consumer verification.
The Thai government plans to reform long-term electricity pricing by addressing unfair power purchase agreements, reducing system losses, and transitioning to renewable energy. Short-term strategies include replacing streetlights with LEDs and solar alternatives to lower costs before implementing separate billing.
International models and the Thai context suggest several approaches to address these issues. These include adding a separate line on bills to indicate public utility charges, enforcing direct budgeting through legislation, reducing costs via LED and solar systems before separation, and installing public smart meters with a committed timeline.
Businesses, particularly SMEs, face a higher burden from hidden costs. They are advised to plan electricity usage during off-peak hours and consider solar rooftops to mitigate reliance on the base electricity tariff. The energy technology and smart metering sector is poised for growth as public meter installations accelerate.
Citizens are encouraged to understand and address these challenges. They can verify bills for changes, reduce reliance on base-rate electricity, and participate in policy discussions. The National Energy Policy Council's public consultation process allows citizens to submit opinions through the Energy Regulatory Commission's official channels.