SG 14-236 DD Offshore Wind Turbine by Siemens Gamesa Renewable Energy: status and timeline

SG 14-236 DD Offshore Wind Turbine

14 MW (15 MW with power boost) offshore wind turbine with 236m rotor, 115m blades, and permanent magnet direct-drive generator. Flagship model for large offshore wind farms, commercially produced since 2024.

ScalingStage 5 of 5

Commercial since 2024: 36 of 72 at Thor, 66 in Taiwan, 107 for Baltica 2 (2027).

Updated 17 Jul 2026Checked 10 Oct0 updates this week

Milestones

Next · Thor (Denmark) full commissioning by spring 2027

SG 14-236 DD prototype assembly beginsOct 2022Complete.
Blade production begins at Aalborg facilityApr 2022Complete.
Prototype installed at Østerild test centerFeb 2023Complete.
Prototype delivers power to gridMar 2023Complete.
Commercial availability / type certification2024Complete.
First turbine installed at Thor wind farm (Denmark)Mar 2026Complete.
36 of 72 turbines installed at Thor (Denmark)Jul 2026Complete.
All 66 turbines installed at Greater Changhua (Taiwan)Jan 2026Complete.
Thor (Denmark) full commissioning by spring 2027Target 2027Current milestone.
Baltica 2 (Poland) commissioningTarget 2027Not yet reached.
Greater Changhua (Taiwan) full operationTarget Q3 2026Not yet reached.

Most important updates

Upcoming

Q3 2026Greater Changhua (Taiwan) full operation (next)
2027Thor (Denmark) full commissioning by spring 2027
2027Baltica 2 (Poland) commissioning

Current obstacles

Blade transportation and logistics115m blades approach specialized ship transport limits. Distant sites (UK, Poland) require careful routing and special ports.
Rare-earth magnet supplyPMG systems rely on neodymium and dysprosium, mostly from China. Supply disruptions or tariffs affect cost and availability.
Grid integration in weak networks15 MW turbines are large power injections. Weak grids struggle with frequency and voltage control; upgrades often needed.

Physics limits

Blade length and material limitsBlades beyond 120–130 meters become heavier and harder to manufacture with existing composites. Blade fatigue and tip deflection (bending) set practical size limits.
Direct drive generator sizePMG direct drives are larger and heavier than geared systems. The nacelle (top of the tower) must support 300+ tonnes; tower and foundation costs increase with mass.
Offshore depth and distance constraintsLarge turbines work best in deeper, windier offshore zones, often 50–100 km from shore. Installation vessel availability and cost grow with distance and water depth.

How it works

4 parts

Rotor capture

Large rotor sweeps more wind energy

236m rotor and 115m blades capture wind over 43,500 m² swept area. 30% more annual energy than predecessor from larger size and better aerodynamics.

Direct drive

Permanent magnet generator

Rotor shaft couples directly to PMG with no gearbox, eliminating friction losses. Power electronics synchronize variable AC output to grid frequency.

Blade production

Scale manufacturing in Aalborg

115m blades manufactured at dedicated Denmark facility. Mass production cuts per-blade cost and ensures consistent fleet quality.

Control

Pitch and yaw for maximum power

Individual blade pitch and yaw track wind direction and speed, maximizing power extraction and managing structural loads.

Spec sheet

Spec	SG 14-236 DD Offshore Wind Turbine
Rated capacity	14 MW^R (reported)
Power boost capacity	15 MW^R (reported)
Rotor diameter	236 m^R (reported)
Blade length	115 m^R (reported)
Swept area	43,500 m²^R (reported)
AEP vs. SG 11.0-200 DD	30% higher^R (reported)
Power per rotation	Powers a household for 3 days^R (reported)

^R reported by the company

Peer comparison

Wind peers

Spec	SG 14-236 DD Offshore Wind Turbine	Dongfang Electric 26 MW Offshore Wind Turbine
Rotor diameter	236 m^R (reported)	310 m^R (reported)
Blade length	115 m^R (reported)	153 m^R (reported)
Swept area	43,500 m²^R (reported)	77,000 m²^R (reported)

^R reported by the company

Update log

6 updates

About Siemens Gamesa Renewable Energy

The team behind SG 14-236 DD Offshore Wind Turbine

Siemens Gamesa Renewable Energy

Offshore wind turbines, SG 14-236 DD, Europe's largest

Siemens Gamesa, formed in 2017 from the merger of Siemens Wind Power and Gamesa, designs and manufactures offshore wind turbines. The SG 14-236 DD flagship is 14-15 MW with a 236m rotor and 115m blades. The company has 107 GW installed and is rebranding to Omterra in late 2026.

Commercial since 2024: 36 of 72 at Denmark's Thor, 107 for Poland Baltica 2, all 66 in Taiwan (Q3 2026 operation).
Delivers 30% higher annual output than its 11 MW predecessor using direct-drive generators, reducing maintenance.
Prototype validated grid operation in March 2023 at Denmark's Østerild test center before commercial production.

siemensgamesa.com (opens siemensgamesa.com)Company profile →

Founded: 20179 yrs
Headquarters: Spain
Status: Public
Valuation: public
Works in: EnergyWind
Coverage: 1 program · 6 updateslatest 17 Jul 2026checked 10 Oct
Customers: RWE (opens rwe.com)Ørsted (opens orsted.com)PGE Group (opens pge.pl)

Spec

SG 14-236 DD Offshore Wind Turbine

Rated capacity

14 MW^R (reported)

Power boost capacity

15 MW^R (reported)

Rotor diameter

236 m^R (reported)

Blade length

115 m^R (reported)

Swept area

43,500 m²^R (reported)

AEP vs. SG 11.0-200 DD

30% higher^R (reported)

Power per rotation

Powers a household for 3 days^R (reported)

Spec

SG 14-236 DD Offshore Wind Turbine

Dongfang Electric 26 MW Offshore Wind Turbine

Rotor diameter

236 m^R (reported)

310 m^R (reported)

Blade length

115 m^R (reported)

153 m^R (reported)

Swept area

43,500 m²^R (reported)

77,000 m²^R (reported)

SG 14-236 DD Offshore Wind Turbine

Milestones

Most important updates

Upcoming

Current obstacles

Physics limits

How it works

Large rotor sweeps more wind energy

Permanent magnet generator

Scale manufacturing in Aalborg

Pitch and yaw for maximum power

Spec sheet

Peer comparison

Update log

Fri 17 Jul

Wed 4 Mar

Tue 20 Jan

Thu 23 Mar 2023

Thu 16 Feb 2023

Tue 11 Oct 2022

About Siemens Gamesa Renewable Energy

Current obstacles

Physics limits

How it works

Large rotor sweeps more wind energy

Permanent magnet generator

Scale manufacturing in Aalborg

Pitch and yaw for maximum power

Spec sheet

Peer comparison

Update log

Fri 17 Jul

Wed 4 Mar

Tue 20 Jan

Thu 23 Mar 2023

Thu 16 Feb 2023

Tue 11 Oct 2022

About Siemens Gamesa Renewable Energy