Wind Power in Thailand: Complete Guide 2026

Thailand has roughly 1,500 MW of installed wind capacity — enough to generate about 2% of the country’s electricity (Low Carbon Power / Ember, 2024). That’s a small slice. But the government’s AEDP 2024 plan calls for 9,379 MW by 2037, a six-fold increase that would make wind a serious part of the energy mix (Watson Farley & Williams, 2024).

This guide covers where Thailand’s wind farms are, what the energy costs, which companies are building new projects, the untapped offshore potential in the Gulf of Thailand, and whether any of this matters for homeowners. If you’re trying to understand wind energy’s role in Thailand — or wondering if it’ll ever rival solar — start here.

TL;DR: Wind power generates about 2% of Thailand’s electricity from ~1,500 MW of installed capacity. The government targets 9,379 MW by 2037 under AEDP 2024. Most wind farms sit in the northeast plateau where wind speeds hit 5-7 m/s. Wind costs 2.7-6.0 THB/kWh — more than solar but approaching coal parity by 2028 (BloombergNEF, 2025).

What Is Wind Power and How Does It Work?

Wind power converts moving air into electricity using turbines — tall towers with blades that spin a generator. Modern utility-scale turbines stand 80-120 meters tall and generate 2-6 MW each. The faster and more consistent the wind, the more electricity they produce.

Thailand’s wind resource is moderate compared to global leaders. Average wind speeds across most of the country sit at just 2.8-4 m/s at 10-meter height — Class 1 on the international scale (Asia Wind Energy Association, 2024). That’s not great. But at hub height (80-120m) in select locations, speeds jump to 5-8 m/s, making commercial wind farms viable.

Key components of a Thai wind farm

• Turbines: Typically 2-4 MW units from manufacturers like Goldwind and Vestas
• Grid connection: Power flows through substations to EGAT’s national grid
• Power Purchase Agreement (PPA): All commercial wind farms sell electricity to EGAT under 25-year contracts
• Feed-in Tariff (FiT): The ERC sets a guaranteed rate — currently 3.1014 THB/kWh for onshore wind (Kaohoon International, 2025)

Common misconception

Many people assume Thailand is “too calm” for wind power. It’s true that most of the country lacks strong winds. But the northeast plateau, southern coastline, and offshore Gulf areas have commercially viable wind resources — they’re just concentrated in specific corridors rather than spread evenly.

Why Does Wind Power Matter for Thailand?

Wind generated 5.9 TWh of electricity in 2024, accounting for roughly 2% of Thailand’s total power supply (Low Carbon Power / Ember, 2024). That’s modest — solar contributes about 3% — but the government sees wind as essential for diversifying the renewable mix beyond solar alone.

Thailand’s PDP 2024 targets 51% renewable electricity by 2037, up from 36% in the previous plan (Climate Policy Database, 2024). Hitting that target requires aggressive growth in every renewable source. Solar alone won’t get there.

Here’s what makes wind strategically important: it produces power at different times than solar. Wind speeds in Thailand typically peak during the cool season (November-February) and at night — exactly when solar output drops to zero. A grid that combines solar and wind is more stable than one relying on solar alone. That complementary generation profile is why the AEDP 2024 plan allocates 9,379 MW to wind alongside much larger solar targets.

BloombergNEF projects that onshore wind in Thailand will be cheaper than building new coal plants by 2028 (BloombergNEF, 2025). Solar already crossed that threshold in 2024. Once wind hits coal parity, the economic case for continued fossil fuel expansion weakens considerably.

Where Are Thailand’s Wind Farms?

Thailand’s wind resources concentrate in three regions: the northeast plateau, the southern coast, and a growing corridor in the east. Most of the country’s ~1,500 MW of installed capacity sits in Nakhon Ratchasima and Chaiyaphum provinces (T&D World, 2024).

Northeast plateau (Isan)

The Korat Plateau offers Thailand’s most proven wind resource. Huay Bong wind farm in Nakhon Ratchasima — 208 MW across two phases — was one of the country’s first large-scale projects, commissioned in 2012-2013 (Global Energy Monitor, 2024). Chaiyaphum province, with ridge-top wind speeds of 5-7 m/s, hosts multiple projects including the Theppana wind farm and planned expansions by Energy Absolute (260 MW).

Southern coast

Songkhla province averages 5.3 m/s wind speeds along the coast, with Nakhon Si Thammarat hosting BCPG’s LomLigor project (9 MW) and Energy Absolute’s 126 MW farm. The monsoon-driven winds here complement the northeast’s dry-season peak.

Eastern expansion

ACCIONA and The Blue Circle were awarded 436 MW across five projects in Ubon Ratchathani, Amnat Charoen, and Chaiyaphum, with commercial operation dates between 2026 and 2030. These 25-year PPAs with EGAT are expected to generate 1,141 GWh per year (ACCIONA, 2024).

How Much Does Wind Energy Cost in Thailand?

Onshore wind in Thailand costs an estimated 2.7-6.0 THB/kWh, depending on site quality and turbine size (BloombergNEF, 2025). The wide range reflects Thailand’s uneven wind resource — a turbine on a Chaiyaphum ridge with 6 m/s winds produces far more than one in the central plains at 3.4 m/s.

The ERC’s Feed-in Tariff guarantees wind developers 3.1014 THB/kWh under 25-year PPAs with EGAT (Kaohoon International, 2025). That rate makes the best sites profitable while filtering out marginal ones.

How does Thailand compare globally?

Not favorably — yet. The global weighted average LCOE for onshore wind dropped to just USD 0.034/kWh (about 1.22 THB) in 2024 (IRENA, 2025). Thailand’s costs are 2-5 times higher, largely because of lower capacity factors.

The capacity factor gap

Capacity factor measures how much electricity a turbine actually produces compared to its theoretical maximum. Thailand’s wind farms typically achieve 20-25%, with the best sites reaching 30%. The global weighted average is 34%, and top markets like the US Great Plains and Brazil hit 40-45% (IRENA, 2024).

This gap is the central challenge for Thai wind power. A turbine operating at 22% capacity factor produces roughly 35% less energy per year than one at 34%. That directly inflates the cost per kilowatt-hour, since the same capital investment generates less electricity. It’s why Thailand’s wind LCOE is multiples of the global average even with similar turbine technology.

Who Are the Major Wind Developers?

Wind Energy Holding dominates the Thai market with approximately 717 MW — about 42% of the country’s original 1.8 GW development quota (Wind Energy Holding, 2024). The company is targeting 2,000 MW by 2037 and planning a USD 2 billion IPO to fund expansion (Energy Connects, 2025).

Several other major players are building out the pipeline:

• GULF Energy Development secured 286 MW across four projects using Goldwind turbines, with THB 15.7 billion invested and commercial operation planned for 2027 (Kaohoon International, 2025)
• ACCIONA and The Blue Circle (Spain/Singapore) entered the market with 436 MW across five projects — the largest single award to international developers (ACCIONA, 2024)
• Gunkul Engineering operates about 170 MW with an 832 MW pipeline in Nakhon Ratchasima (Gunkul Engineering, 2024)
• RATCH Energy / EGCO own the 208 MW Huay Bong project and the 90 MW Chaiyaphum Wind Farm
• Energy Absolute runs 126 MW in Nakhon Si Thammarat with 260 MW more planned in Chaiyaphum

The entry of international developers like ACCIONA signals growing confidence in Thailand’s wind market. Their 436 MW commitment brings European engineering standards and suggests the regulatory environment is stable enough for long-term infrastructure bets.

What Is the Government’s Wind Energy Policy?

Thailand’s AEDP 2024 (Alternative Energy Development Plan) targets 9,379 MW of wind capacity by 2037, as part of an overall goal to generate 51% of electricity from renewable sources (Watson Farley & Williams, 2024). That’s more than six times the current installed base.

The ERC (Energy Regulatory Commission) runs a Feed-in Tariff scheme with a 1,000 MW wind quota for 2022-2030 (Watson Farley & Williams, 2024). Developers bid for slots and, if awarded, receive the guaranteed 3.1014 THB/kWh rate under 25-year PPAs with EGAT.

How the process works

1. The ERC announces a procurement round with a capacity quota
2. Developers submit bids with project details and financial backing
3. Winning projects negotiate PPAs directly with EGAT
4. Environmental Impact Assessments must be filed — areas are divided into three restriction classes with 21 environmental criteria
5. Projects have a set deadline for commercial operation (typically 3-5 years from PPA signing)

What’s changed recently?

The PDP 2024 marked a significant shift. The previous plan targeted 36% renewable electricity — the new one jumps to 51%. Wind’s allocation grew correspondingly, reflecting a recognition that solar alone can’t deliver a balanced renewable grid.

However, policy execution has lagged. IRENA data showed zero net wind capacity additions in Thailand during 2024, suggesting regulatory bottlenecks or delayed project timelines. The gap between targets and installations is worth watching.

Can Offshore Wind Work in the Gulf of Thailand?

The Gulf of Thailand holds an estimated 7,000 MW of offshore wind technical potential, capable of generating roughly 15 TWh per year — about 5% of Thailand’s current electricity demand (ScienceDirect / Renewable Energy journal, 2015; T&D World, 2024). Wind speeds offshore reach 6-8 m/s at 120-meter hub height, measured via mesoscale modeling validated against 28 meteorological towers.

That’s a meaningful resource. But offshore wind is expensive. Global offshore LCOE sits at USD 0.079/kWh (about 2.84 THB) according to IRENA’s 2024 data — more than double onshore costs. Thailand has no operating offshore wind farms yet, and the regulatory framework for seabed leasing and marine environmental assessment is still being developed.

The economics of offshore wind in Thailand face a double challenge. Not only are construction costs higher than onshore (floating foundations, submarine cables, marine logistics), but the Gulf’s wind speeds — while better than onshore — still fall short of the North Sea or Taiwan Strait where most offshore wind experience has been built. A 7 m/s average at hub height produces roughly 60-65% of the energy you’d get from a 9-10 m/s site in Northern Europe. That doesn’t mean it’s unviable, but it does mean Thailand’s offshore wind will need continued cost declines in turbine technology to become competitive.

Neighboring Vietnam has moved faster on offshore wind, with several gigawatt-scale projects in planning. Thailand may benefit from the regional supply chain that develops as Southeast Asian offshore wind matures.

Does Wind Energy Work for Homes?

Short answer: almost certainly not. Small residential wind turbines (1-10 kW) exist, but they rarely make financial sense in Thailand. Here’s why.

Thailand’s residential areas — cities, suburbs, villages — sit in low-wind zones. Average speeds of 2.8-4 m/s at 10-meter height are well below the 5 m/s minimum most small turbines need to generate meaningful electricity (Asia Wind Energy Association, 2024). Buildings, trees, and terrain create turbulence that further reduces effective wind speed at rooftop level.

The numbers don’t work

A small 5 kW wind turbine costs 150,000-400,000 THB installed. At Thailand’s typical residential wind speeds, it might generate 2,000-4,000 kWh per year — saving perhaps 8,000-17,000 THB annually at progressive electricity rates. That’s a payback period of 15-50 years, far exceeding the turbine’s 15-20 year lifespan.

Compare that to solar: a 5 kW rooftop system costs 130,000-180,000 THB, generates 6,500-7,500 kWh per year in Thailand’s strong irradiance, and pays back in 4-5 years. Solar wins by a wide margin for residential use.

When might a small turbine make sense?

• Remote off-grid locations where neither grid power nor sufficient solar is available
• Coastal properties in southern Thailand with consistent onshore winds above 5 m/s
• Hybrid solar-wind systems for off-grid setups that need power at night

For the vast majority of Thai homeowners, rooftop solar is the practical renewable energy investment. Wind’s value lies at the utility scale — large farms on the northeast plateau and eventually offshore — feeding into the national grid that powers your home.

Advanced: Wind Power Investment for Businesses

If you’re already sourcing renewable energy and want to understand how wind fits into corporate procurement, the options are expanding.

Thailand’s corporate PPA market is growing. Businesses can contract directly with wind developers or purchase Renewable Energy Certificates (RECs) tied to specific wind farms. GULF’s 286 MW project, for instance, represents THB 15.7 billion in investment — the kind of scale that needs offtake agreements beyond just EGAT.

What to know before considering wind

• EIA requirements are strict. Environmental Impact Assessments must be submitted at least 15 days before PPA conclusion. Project areas are classified into three restriction tiers with 21 environmental criteria covering noise, wildlife, and land use
• Wind is capital-intensive. At 50-60 million THB per MW for onshore projects (based on GULF’s THB 15.7B for 286 MW), the upfront investment dwarfs rooftop solar. This is institutional-scale infrastructure
• Capacity factor matters more than nameplate capacity. A 100 MW wind farm at 22% capacity factor produces the same annual energy as a 65 MW farm at 34%. Always evaluate expected generation, not just installed MW

For most businesses, solar remains the simpler renewable energy procurement path. Wind becomes relevant for large industrials seeking to diversify their green energy portfolio or companies with sustainability reporting requirements that value source diversity.

Getting Started

Step 1: Understand your energy mix. Check your latest electricity bill. If you’re a household consuming 400+ kWh/month, the marginal rate you’re paying (4.22-4.42 THB/kWh) is what any renewable investment needs to beat. Wind at the utility scale feeds into the grid that sets these rates.

Step 2: Follow the policy. The ERC publishes procurement round announcements for new wind capacity. If you’re an investor or developer, track the FiT scheme timeline — the current 1,000 MW quota for 2022-2030 is being filled gradually. Watson Farley & Williams maintains an accessible summary of Thailand’s renewable procurement rules.

Step 3: For clean energy at home, start with solar. Wind’s contribution will come through the grid as utility-scale projects come online over the next decade. For direct savings on your electricity bill today, rooftop solar offers faster payback and simpler installation.

Don’t wait for wind to make sense at home scale. The technology works — just at a different scale than most people picture.

Frequently Asked Questions

Is Thailand windy enough for wind power?

In most of the country, no. Average wind speeds at ground level are just 2.8-4 m/s — too low for commercial turbines. But specific corridors in Nakhon Ratchasima, Chaiyaphum, and along the southern coast reach 5-7 m/s at hub height, which is commercially viable (Asia Wind Energy Association, 2024). About 1,500 MW of operating wind farms prove these sites work.

How much does a wind farm cost in Thailand?

Based on GULF Energy’s recent 286 MW project at THB 15.7 billion, that’s roughly 55 million THB (USD 1.5 million) per megawatt installed (Kaohoon International, 2025). Operating costs are lower — the FiT rate of 3.1014 THB/kWh covers both capital recovery and operations over the 25-year PPA period.

Can I install a small wind turbine at home in Thailand?

Technically yes, but it almost never makes financial sense. Residential wind speeds are too low (2.8-4 m/s) for consistent generation. A 5 kW home turbine would take 15-50 years to pay back, while a comparable solar system pays back in 4-5 years. Solar is the practical choice for homes.

How does wind compare to solar in Thailand?

Solar is cheaper (already below coal parity), more predictable in Thailand’s high-irradiance climate, and works at both residential and utility scale. Wind costs 2-5x more per kWh but generates power at different times — especially at night and during the cool season. The grid needs both for reliability.

What is Thailand’s offshore wind potential?

The Gulf of Thailand has an estimated 7,000 MW of technical offshore wind potential at 120-meter hub height, enough to generate about 15 TWh per year (ScienceDirect, 2015). No offshore farms operate yet, and the regulatory framework is still being developed. Costs remain higher than onshore.

Conclusion

Wind power in Thailand sits at a turning point. The country has proven that onshore wind works — 1,500 MW of installed capacity generating 2% of national electricity — but faces real constraints. Lower wind speeds mean higher costs per kilowatt-hour than global averages, and solar currently offers better economics at every scale.

What changes the picture is the government’s ambition. The AEDP 2024 target of 9,379 MW by 2037 would require adding roughly 700 MW per year — a pace Thailand hasn’t achieved yet but that developers like ACCIONA, GULF, and Wind Energy Holding are positioning to deliver.

For residents, wind’s impact is indirect. It feeds the grid, diversifies the renewable mix, and over time helps keep electricity rates competitive. For direct savings on your electricity bill, solar remains the clear first step.