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ENERGY / WIND POWER

Wind power

ENERGY · WIND

Wind power

Extracting energy from a variable wind, on a 200-metre machine under fatigue for twenty-five years, sometimes 30 kilometres offshore. Wind power is a problem of mechanical loads, real-time control and remote operation as much as generation.

The main families

Onshore

Multi-MW onshore turbines

Machines of 3 to 6 MW, controlled by pitch (blade angle) and yaw (nacelle orientation). Geared or direct-drive trains. Tower height and rotor diameter maximize capacity factor on medium-wind sites.

Offshore

Fixed & floating, 14-15 MW

Monopile or jacket foundations in shallow water, anchored floaters in deep water. High-voltage DC (HVDC) export for distant farms. O&M access by vessel or helicopter, heavily weather-constrained.

Control & supervision

SCADA IEC 61400-25, forecasting

Each turbine driven by SCADA per IEC 61400-25, wind forecasting for market commitment, condition monitoring (vibration, oil) to anticipate gearbox and bearing failures.

Key challenges

  • Loads & fatigue — design (IEC 61400-1) must withstand extreme gusts and billions of fatigue cycles over 20-25 years; the site wind class drives the whole machine.
  • O&M & access — offshore, access depends on weather; condition monitoring (vibration, oil analysis) and drone blade inspection avoid trips and anticipate costly gearbox failures.
  • Grid integration — grid codes, fault ride-through, ancillary services; poorly coordinated protection settings have already caused blackouts (South Australia 2016).
  • Distributed-asset cybersecurity — hundreds of turbines remotely controlled via SCADA: a broad attack surface, remote access to secure (IEC 62443).
  • Repowering & end of life — replacing ageing farms with more powerful machines, decommissioning and recycling composite blades, a rising regulatory topic.

See also

PhotovoltaicsStorage / BESSSCADACybersecurity OTDecarbonization

Wind-specific standards

  • IEC 61400-1 — Design requirements and wind classes: extreme and fatigue loads over a 20-25 year life.
  • IEC 61400-3 — Requirements specific to offshore turbines (foundations, waves, currents, corrosion).
  • IEC 61400-12 — Power performance measurement: verifying a turbine's contractual performance.
  • IEC 61400-21 / -27 — Injected power quality and electrical simulation models for grid studies.
  • IEC 61400-25 — Communication and supervision (SCADA): uniform monitoring and control of multi-vendor farms.

Related standard pages on IndustryHub

Major players

Turbine OEMs

Vestas, Siemens Gamesa, GE Vernova, Goldwind, Nordex, Envision.

Developers & operators

Ørsted, RWE, Iberdrola, Equinor, EDF Renouvelables, Engie.

Condition monitoring

Bachmann, Brüel & Kjær Vibro, SKF, Romax (jumeaux numériques).

Grid & HVDC

Hitachi Energy, Siemens Energy, GE Grid, Prysmian (câbles).

Landmark facts

FactYearLocationLesson
South Australia blackout2016AustraliaA storm cut lines; protection settings tripped several wind farms in cascade, causing a statewide blackout. Drove ride-through requirements and the Hornsdale big battery.
Race to gigantism2023OffshoreUnit power rose from about 2 MW to 14-15 MW in fifteen years (GE Haliade-X, Vestas V236). Mega-farms like Dogger Bank exceed a gigawatt, sharply lowering offshore energy cost.
Blade recycling2020Europe / USAComposite blades, long sent to landfill, pose an end-of-life problem. Landfill bans and repowering of ageing farms push toward recyclable blades and reuse.

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