How wind turbines and wind farms produce power: wake effects, wind shear, turbulence, turbine sizing, capacity factor and offshore foundations and cables.
10 guidesPlain languageUpdated regularly
Rare earth prices directly impact direct drive wind turbine costs by increasing the expense of high-performance permanent magnets. Because these turbines lack gearboxes, they rely on Neodymium and Dysprosium to maintain efficiency, making their total CAPEX sensitive to market volatility. Most large offshore wind turbines built today have no gearbox. Instead, the slowly turning rotor…
Floating wind shifts cable design from static to dynamic to accommodate platform motion and fatigue. Maintenance transitions from onsite jack-up vessel repairs to a tow-to-port strategy, fundamentally altering offshore logistics, vessel requirements, and long-term operational costs. Fixed-bottom offshore turbines stop making economic sense somewhere around 50–60 metres of water. Beyond that, the turbine has to…
Offshore wind foundation choice depends on water depth because structural loads, installation costs, and stability requirements change as depth increases. Fixed-bottom foundations like monopiles work best under 50 meters, while floating platforms are required for deep-water sites exceeding 60 meters. Before anyone picks a turbine for an offshore wind farm, they have to answer a…
Turbine efficiency measures how effectively a turbine converts available kinetic energy into electricity at any given moment. In contrast, capacity factor measures actual energy generated over a specific period relative to the turbine’s maximum theoretical output. “Wind turbines only work 30% of the time” is a line you will hear often, and it mixes up…
Larger rotor diameters increase the swept area, capturing more kinetic energy from the wind. By expanding the blade length, turbines generate higher aerodynamic torque, allowing them to reach their maximum rated power output even when wind velocities are relatively low. For years the wind industry chased the windiest coastlines and ridgelines. That changed when manufacturers…
Wake steering increases total wind farm production by intentionally misaligning upstream turbines with the wind. This redirects turbulent wakes away from downstream turbines, allowing them to capture higher-velocity airflow and noticeably boosting the collective energy yield of the entire farm. Traditionally, wind turbine control has focused on a single goal: maximizing the power output of…
Increasing distance from shore raises transmission costs through higher cable expenditures, greater energy losses, and the eventual need for High-Voltage Direct Current (HVDC) technology. Costs typically spike at the 80-kilometer mark where HVDC converter stations become necessary. Offshore wind energy is a cornerstone of the global transition to renewable power. As prime near-shore locations become…
Turbulence increases wind turbine fatigue loads by causing rapid, cyclic fluctuations in aerodynamic forces. These variations create repetitive stress on blades and components, accelerating material degradation through cumulative damage and markedly shortening the operational lifespan of the turbine structure. Understanding the relationship between wind behavior and structural integrity is key for anyone involved in renewable…
Wake losses occur when upstream turbines reduce wind speed and increase turbulence for those downstream. To mitigate this, developers typically space turbines 5 to 10 rotor diameters apart, balancing energy recovery with land and infrastructure costs. Understanding the mechanics of wind flow is the cornerstone of a successful renewable energy project. When a wind turbine…