Which country has the most expensive electricity?

Among the three verifiable here, Singapore is highest (~8 THB/unit) — near-total imported gas and no price subsidy. Japan is similar or higher, but this page omits a Japan number because its official rate page was not reachable at check time.

Is Vietnam's electricity really cheaper than Thailand's?

Yes at low-to-mid usage — Vietnam's bottom tier is 1,984 VND/unit (~2.5 THB). But it's a 6-tier ladder, so a heavy user hits the top tier of 3,460 VND/unit (~4.4 THB), just above Thailand's average (MOIT Decision 1279/QĐ-BCT, effective 10 May 2025).

Even converted to baht, why can't I compare directly?

Because the basis differs: taxes (different VAT/GST), tiered vs single price, separately-billed service/network charges, state subsidies, and moving FX. So the baht figures are 'approximate, for a sense of scale' — not the final price paid.

Why aren't Japan, Laos and Malaysia in the table?

Because we include only numbers readable from a verifiable current official source. At check time (23 Aug 2026) Japan's official rate page was blocked (403), Laos's tariff page was missing/client-rendered, and Malaysia's only machine-readable official document predates its 1 Jul 2025 restructure. We left them out rather than cite unverifiable figures, and will add them back once a current official source is reachable.

How do I make my home/factory bill lower than this?

The real lever is self-generating part of your load with solar, because every self-consumed unit is one you don't buy at full retail — especially factories running through expensive daytime on-peak hours. CapSolar assesses it free from your actual bill, EPC or PPA (zero capex) — contact us.

Per-unit price, by country

Is Thai electricity expensive next to Singapore & Vietnam?

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Short answer: Thailand sits in the middle — several times cheaper than Singapore, roughly on par with Vietnam. This page compares the per-unit price from each country's latest official tariff, converts it to baht, and explains why the raw numbers can't be compared head-to-head.

6 min readUpdated: 23 Aug 2026Rates as of: each country's latest official rate (see table)

Thai electricity is not expensive by international standards — it lands in the low-to-middle band. Thailand's average residential price is about 3.95 THB/unit (before VAT), several times below Singapore's household rate of roughly 8 THB/unit and close to Vietnam's roughly 2.5–4.4 THB/unit across its tiers. Every figure is from each country's latest official tariff (see the table and sources below).

Which country's electricity is most expensive, and where does Thailand rank?

Among the three countries verifiable from a current official tariff, Singapore is the most expensive (~8 THB/unit), then Thailand (~3.95 THB/unit), with Vietnam cheapest at low-to-mid usage. Vietnam uses a 6-tier ladder, so a heavy user's top tier climbs toward Thailand's level — which is why the honest answer depends on how much you use, not a single number.

Residential electricity comparison (per unit, latest official rates)

Country	In local currency	≈ THB/unit	Basis / period / source
Singapore	31.91 ¢SGD	≈ 8.2	regulated household rate, before GST (34.78¢ incl. 9% GST) · Jul–Sep 2026 · SP Group
Thailand	3.95 THB	3.95	blended average, before VAT · Ft period May–Aug 2026 · ERC
Vietnam	1,984–3,460 VND	≈ 2.5–4.4	6-tier ladder (lowest–highest), before 8% VAT · effective 10 May 2025 · EVN (Decision 1279/QĐ-BCT)

The baht column is approximate, converted at 1 SGD ≈ 25.77 THB and 1,000 VND ≈ 1.26 THB (exchangerate-api.com, 23 Aug 2026 — FX moves constantly). Thailand's figure is pulled from the site constant, not re-typed. For Thailand's average bill and rate ladder in detail, read how much is electricity in Thailand and baht per unit.

Singapore and Vietnam: how many baht per unit (converted)?

Country by country from the official source, with the original figure and the approximate baht value:

🇸🇬 Singapore — ~8 THB/unit

SP Group's regulated household tariff for Jul–Sep 2026 is 31.91 Singapore cents/unit before GST (34.78 cents incl. 9% GST) — about 8.2 THB/unit before tax. It is high because Singapore generates almost entirely from imported gas and does not subsidise the price.

🇻🇳 Vietnam — ~2.5–4.4 THB/unit

Vietnam runs a 6-tier household ladder under MOIT Decision 1279/QĐ-BCT, effective 10 May 2025: from 1,984 VND/unit at the bottom (~2.5 THB) up to 3,460 VND/unit at the top (~4.4 THB), before 8% VAT. Light users pay less than Thailand; heavy users' top tier edges just above Thailand's average.

🇹🇭 Thailand — ~3.95 THB/unit

Thailand's blended average residential price is about 3.95 THB/unit (before 7% VAT) for May–Aug 2026, energy plus the 0.1623 THB/unit Ft — but the real bill depends on customer class and tier. Full detail in Thailand's tariff structure and what the Ft is.

Why can't you compare electricity prices across countries head-to-head?

Because each country's 'per-unit number' rests on a different basis. At least five things make a raw comparison misleading:

Different taxes — Thailand adds 7% VAT, Vietnam 8% VAT, Singapore 9% GST. This page tries to quote 'before tax' consistently, but many sources bake tax in, so read the basis.

Tiers vs a single price — Vietnam charges in 6 tiers; light users pay far less, heavy users far more. Picking one tier to compare against another country's average isn't fair.

FX moves — converting to baht today vs three months later can differ. The baht figures here are approximate, only as of the stated date.

Different subsidies / fuel imports — some states subsidise, others pass through full-price imported gas or coal. The retail price reflects policy as much as raw cost.

Hidden service/network charges — some countries bill capacity, network and a monthly service charge separately, so the advertised 'per-unit price' isn't the whole bill.

So why is Thailand's electricity priced the way it is?

Thailand's per-unit price is three parts: a base energy charge by customer class + the Ft that the ERC re-sets every 4 months with fuel cost + 7% VAT. Thailand leans on natural gas, so the price tracks gas cost through the Ft mechanism rather than sitting fixed. The full structure and latest figures are in the dedicated pages below.

Full structure and rates: Thailand's electricity tariff · baht per unit

Why it moves: what the Ft charge is · does region matter: PEA vs MEA

Business/factories bill differently (TOU + demand): factory electricity cost · demand charge & TOU/TOD

It's not the most expensive — but can you push your bill lower?

Yes — for homes and especially factories, the real lever is self-generating part of your load with solar, because every unit you make yourself is a unit you don't buy at full retail. Factories with expensive on-peak hours gain the most. Assess it from your actual bill before deciding.

Who wrote and checked this

Compiled by the CapSolar knowledge team (solar EPC/PPA in Thailand, 80+ MWp across 150+ projects). Every foreign figure was read from each country's official rate page and GET-200 checked on 23 Aug 2026; Thailand's figure follows the ERC Ft-period constant. Countries with no readable current official source were left out rather than quoted from unverifiable numbers.

FAQ

No — it lands in the low-to-middle band. Thailand's average household price is about 3.95 THB/unit (before VAT), several times below Singapore (~8 THB/unit) and close to Vietnam (~2.5–4.4 THB/unit across tiers).

Expensive or not — measure it from your real bill

Send CapSolar your bill for a free assessment of how much EPC or PPA solar can cut for your home or factory.

Free assessment from your billor call +66 2 124 5414

Is Thai electricity expensive next to Singapore & Vietnam?

Which country's electricity is most expensive, and where does Thailand rank?

Residential electricity comparison (per unit, latest official rates)

Singapore and Vietnam: how many baht per unit (converted)?

🇸🇬 Singapore — ~8 THB/unit

🇻🇳 Vietnam — ~2.5–4.4 THB/unit

🇹🇭 Thailand — ~3.95 THB/unit

Why can't you compare electricity prices across countries head-to-head?

So why is Thailand's electricity priced the way it is?

It's not the most expensive — but can you push your bill lower?

Who wrote and checked this

FAQ

Read next

How much is electricity in Thailand

Thailand electricity tariff

How many baht per unit

What the Ft charge is

How factory electricity is billed

Transformer size, price & how to apply

Expensive or not — measure it from your real bill