London, 2 September 2024 – RES, the world leading independent renewable energy company and services provider, today announces the acquisition of Sulzer Schmid (Sulzer & Schmid Laboratories AG). The acquisition further strengthens RES’ breadth of digital solutions and services to meet growing demand from renewable energy asset owners for smart,…
Blade engineering & analysis services
Preventing critical blade failures
Safeguard turbine reliability by identifying the true root causes of blade issues - not just the symptoms.
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Root cause analysis (RCA) and technical due diligence (TDD)
Blade failures are among the most significant technical risks facing wind asset owners and investors today. Even newer turbine models are experiencing recurring structural damage within the first years of operation. As turbines continue to grow in size and complexity, early detection and independent analysis are critical to avoiding costly downtime and disputes.
That’s where RES, powered by Bladena, comes in.
Bladena is a specialist in wind turbine blade engineering, recognised across the industry for its deep structural expertise and proprietary technologies, including D-String®, D-TE™, and The RTZ Solution™. Since 2011, Bladena has served as a knowledge centre for the global wind industry, helping owners reduce blade failure risk and extend turbine lifetimes.
Now part of RES, Bladena brings cutting-edge insight and blade-specific solutions to support long-term performance, reliability, and reduced operational costs.
What we offer
We provide independent blade performance and failure analysis services to identify underlying issues and support smarter, long-term decision-making.
By combining WTG blade data, site information, and advanced FEM modelling, our experts deliver precise, engineering-led insights to help you avoid repeated damage and reduce lifetime O&M costs. Our work is trusted by wind turbine owners, insurers, and investors worldwide.
Root cause analysis (RCA)
Our RCA service goes beyond surface-level symptoms to uncover the true source of blade damage. We examine structural behaviour, materials, manufacturing processes, and operational loads to identify hidden design flaws, serial defects, in-service damage mechanisms, and gaps in testing, certification, or repair. Our Mitigation Impact Assessment also evaluates the effectiveness of corrective actions to prevent recurrence, supporting more reliable long-term operation.
Technical due diligence (TDD)
Our TDD service assesses wind turbine blade designs to support informed procurement and safeguard long-term asset value. We review certification, test methodologies, and structural performance—validating that testing reflects real-world conditions. We also identify gaps in certification, structural risks, and vulnerabilities such as lightning protection and leading-edge erosion. This evidence-based approach gives owners and investors the confidence that blades are technically sound and fit for purpose.
Why RES?
At RES, we combine decades of experience with independent, engineering-led expertise to deliver tailored, high-impact solutions that optimise wind turbine reliability and performance. Our commitment to long-term partnerships ensures that we offer continuous support, helping you maximise the return on investment for your assets and proactively address issues before they escalate.
Unbiased, independent expertise
RES, powered by Bladena, provides impartial analysis free from OEM or certification body influence. This independence ensures fully transparent, trusted advice that supports better decision-making for asset owners.
Structural insight built on global experience
Bladena leads the industry in blade structural expertise, combining advanced FEM numerical modelling with deep field experience. Our understanding of failure modes is backed by a global database of blade damage types - ensuring insights are both technically sound and practically relevant.
Proven success in solving complex issues
We’ve supported customers worldwide by reducing downtime and tackling complex blade failures through robust RCA and TDD. Our work consistently improves performance and lowers operational costs.
Data-driven and comprehensive
We integrate data from blade inspections, monitoring tools and performance records to deliver evidence-backed conclusions. Each recommendation is grounded in both engineering rigour and real-world operational insights.
A strategic partner for the long term
We don’t just deliver one-off reports. Our teams support ongoing operation issues and performance optimisation — helping you manage risk, extend blade life and improve fleet performance over time.
Resources
Learn more about our projects
RES acquires global blade inspection and condition monitoring company to bolster its Operations & Maintenance service offering
RES acquires Bladena to strengthen digital wind farm solutions through advanced blade engineering
London, 29 November 2024 – RES, the world’s largest independent renewables company, has acquired Danish wind turbine blade engineering specialist, Bladena, further strengthening its suite of advanced digital solutions. Established in Denmark in 2011, Bladena provides engineering expertise to minimise the risk of blade failures for wind farm owners through…
AeroUp: Revitalising wind farm performance
Renewable deployment is continuing around the world, with the number of solar panels and wind turbines rapidly increasing. Last year, the EU built a record 17 GW of new wind energy. On top of this, in the first half of 2023, there was the highest number of turbines installed worldwide…