Bubble Curtain Activity: Vessel Demand & Pipeline Outlook

Spinergie’s Bubble Curtain Report offers a detailed market analysis of this offshore wind noise mitigation technology. The study covers activity volume, vessel owners, installation contractors, and foundation types at the country, regional, and global levels. It then maps this against the short-term foundation installation pipeline and the maturity of noise regulation in each market. Drawing on Spinergie’s proprietary algorithm, which detects bubble curtain vessel activity from AIS patterns during piling campaigns, the report shows existing demand and where future opportunities will emerge.

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Bubble Curtain Supply Overview

Vessel Activity volume by year and country of operation since 2016, based on Spinergie's detection of bubble curtain vessel patterns during foundation campaigns
Market size by vessel owner and vessel type (PSV, AHTS), with the main specifications of the vessels used (DWT, length, deck area)
Market share of foundation installation contractors and wind developers using bubble curtains
Adoption by country and foundation type (monopile, TP-less monopile, jacket)

Bubble Curtain Pipeline Overview

Projects with foundation installation expected over the next three years, by country, developer and foundation type
Classification of markets by maturity: high (bubble curtains standard or mandatory), medium (first bubble curtain activity detected) and frontier (no activity yet, with stricter environmental rules coming)
Project-level detail: capacity, number of turbines, foundation installation start date and awarded foundation contractor
Focus on emerging markets

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Bubble curtain activity tripled between 2020 and 2024

‍Noise mitigation during piling is now required in most mature offshore wind markets, and bubble curtains have become the most widely used method. Spinergie data show bubble curtain activity grew by more than 200% between 2020 and 2024. Germany has been the core market since 2016, and Taiwan and the USA drove the recent growth. Supply remains fragmented. More than 20 vessel owners have worked in this segment, mostly with PSVs, and none of them works only on bubble curtains.

‍Core markets anchor the pipeline as new countries emerge

‍Most foundation installation work planned for the short term is in markets where bubble curtains are already standard, led by Germany, the Netherlands and Taiwan. This provides a solid base of demand. Demand is also spreading to new markets. The UK and France have recently started using bubble curtains and hold a large share of upcoming campaigns. Poland, South Korea and Japan follow, with tightening noise rules. With US foundation campaigns winding down after accounting for around a third of activity in 2023 and 2024, will these markets be enough to avoid a slowdown?

Our Analysts

Hugo Madeline

Senior Offshore Energy Analyst / Project Manager

Hugo is a senior offshore energy analyst and project manager at Spinergie with six years of experience in the maritime sector. He specializes in offshore market analysis and industry insights, with a focus on decarbonization strategies and fleet optimization. He has expertise in offshore fleet operations and international and regional regulations. Hugo holds an MSc in Energy Transition from Mines Nancy Engineering School.

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Bubble Curtain Activity: Vessel Demand & Pipeline Outlook

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