STORY / PUBLIC SOURCE RECORD
Heave compensation for offshore wind turbine installations
- Published 19 December 2024; updated 30 September 2026; estimated reading time 2 minutes. The page explains heave compensation as technology that counteracts vertical vessel motion from waves during offshore wind lifts and transfers, protecting equipment and enabling safer turbine installation.
- Passive systems use mechanical components such as springs and hydraulic pistons to absorb movement. Their simpler design and fewer moving parts can make them less costly, but they do not adapt in real time and may be less effective in changing sea states. Active systems use motion sensors, control systems, algorithms and hydraulic/electric actuators to respond to wave motion, supporting precision lifts in harsher conditions.
- A heave-compensated crane uses sensor data to adjust winch line speed and tension based on vessel movement and wave conditions. This reduces sudden load movement and re-hits against the deck when installing heavy turbine components.
- The article says conventional offshore installations may stop when waves exceed 1.5 m, while some active systems keep loads nearly still in waves up to 3 m. It names Seaqualize and Norway’s Safelink; Safelink’s hook-based active compensator is described as creating near-landlike lifting conditions and reducing wait time. These are page-reported product capabilities, not independently validated here.
- Related links: Energy and Offshore wind industries; Seaqualize and Safelink solutions. No direct contact block is shown.