Power-Consuming Appliances and Measures to Reduce Electricity Costs

High electricity bills during this period are not unusual; the hot weather necessitates more frequent use of electrical appliances. Naturally, this can lead to higher-than-normal bills, prompting the question: "Why is the electricity bill so high?" Here, we explore the causes of high electricity costs, how charges are calculated, the power consumption of various appliances, and government measures to help reduce costs.

Why are electricity bills high?

First, it is important to understand the cause of high electricity bills. Electricity authorities use a progressive rate structure: the more electricity you consume, the more you pay. The primary variable driving up costs is increased electricity usage. Hot weather leads to more frequent use of specific appliances—such as air conditioners, fans, and refrigerators—resulting in higher overall consumption.

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Appliances that drive up electricity costs

Households facing high electricity bills often utilize the following appliances:

1. Air conditioners and compressors
2. Air purifiers
3. Misting fans
4. Refrigerators

Even if you use your air conditioner as usual, costs can rise because the compressor works harder in the heat, causing electricity consumption (units used) to increase more rapidly. Regarding refrigerators, frequent opening consumes more power, as does overstocking the unit. (Note: Even with energy-efficient models, the advertised annual operating cost is often based on specific conditions—such as storing no more than five bottles of beverages—which may not reflect actual usage habits.)

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Why do electricity bills rise in the summer?

As the weather and homes heat up, households rely more heavily on cooling appliances like air conditioners and refrigerators. Data from the Metropolitan Electricity Authority (MEA) indicates that the average electricity consumption per residential household increases during the April–June period. The figures are higher than in other months of the year, aligning with the rise in average temperatures during this period.

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Electricity costs rise due to the Ft adjustment

"Ft" stands for "Float Time," referring to the fluctuation of electricity generation costs that are beyond the control of the electricity authorities—such as fuel prices, inflation, and foreign exchange rates—based on specific calculation periods.

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Government measures to reduce electricity costs

The National Energy Policy Council (NEPC) has resolved to reduce electricity rates for the January–April period. The rate will drop from the previously frozen 3.94 baht per unit to 3.88 baht per unit. This new rate takes effect in January, resulting in lower electricity costs compared to current levels.

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Thanks to DD-Property for the useful information.