MEMBER NEWS: 4Subsea to showcase new autonomous SMS Strain sensor at WindEurope Electric City 2021

November 18, 2021
MEMBER NEWS: 4Subsea to showcase new autonomous SMS Strain sensor at WindEurope Electric City 2021

4Subsea, a leading provider of digital technology and services, has launched a new autonomous sensor which measures the dynamic strain of offshore wind turbines with high resolution and accuracy. The sensor will reduce cost of operations and maximise life of offshore wind turbines.

Retrofittable sensors installable by hand

Unlike regular strain gage installations, 4Subsea’s Smart Monitoring Sensor (SMS) Strain™ is an autonomous, retrofittable sensor that can be installed without special requirements such as the use of specialised technicians, equipment, or a clean environment. In addition, the technology can easily be installed by hand on the turbine tower or using divers or ROV for subsea installation, for instance, on the substructure.

Low power consumption

SMS Strain™, which the company is showcasing at this year’s WindEurope: Electric City 2021, has extremely low power consumption, enabling continuous logging and data storage at 10 Hz sampling frequency for a full 12 months.

Synchronised data sampling and logging

The SMS Strain™ sensors can be cabled to motion sensors like the SMS Gateway™ (topside) or SMS Motion™ (subsea) to provide fully synchronised strain and motion data. This gives a unique opportunity to assess structural loads in correlation with deflections and response frequencies which are critical parameters in wind turbine design. Furthermore, the sensors are made as true IoT sensors where that given access to power and the internet, they will automatically start sending data to the cloud where the data is processed, and insight from the data can be visualised to the customers.

Peter Jenkins, CEO of 4Subsea, said, “With the launch of SMS Strain™, we continue to simplify the complexity of the challenges faced by our clients by providing informed data to develop optimal, tailor-made solutions. The sooner you know the status of your asset, the larger the range of available options to either optimise or mitigate the findings. The key to unlocking this knowledge is increased understanding, which our sensors deliver.”

“SMS Strain™ is the latest of our autonomous sensors that help operators reduce the cost of operations and maximise life of assets when combined with our data analytics and engineering specialists within the company.”

Autonomous sensors for subsea and offshore wind operations

4Subsea provides sensor technology for subsea assets and offshore wind operations worldwide. They started developing bespoke tools and design methods before commercial equipment or design standards were available.

Lifetime extension of assets

Tackling industry challenges for operators, 4Subsea’s technology is developed to perform the most challenging of engineering tasks. Providing data to track integrity status, inform key decision making and reduce the need for regular ROV inspections to monitor the condition of equipment, the new technology can extend the lifetime of assets beyond design life.

4Subsea’s sensor portfolio

The SMS Strain™ is the sixth sensor in 4Subsea’s sensor product line, adding new capabilities to the company’s existing offering that includes SMS Motion™, SMS Magic Hand™, SMS Gateway™, SMS ComCentral™ and SMS Guard™.

4Subsea is exhibiting at WindEurope: Electric City 2021 on Stand C2-A14.

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AREG has played an important role in the growth of Scotland’s renewable energy sector, engaging the supply chain and developing the European Offshore Wind Deployment Centre. However, we are only at the very beginning of the transition that AREG was established to both lead and support so there are still opportunities for companies to get into the constantly evolving renewables supply chain. We look forward to continuing our work together as renewables builds on its place as Scotland’s main source of power, and as we seek to deliver real change in the crucial areas of heat and transport.

Scottish Renewables

Aberdeen & Grampian Chamber of Commerce has worked closely with AREG since its formation. The recent progress in the developments of offshore wind projects by Equinor and Vattenfall are as a result of the work of the group over many years. The north-east is known as the oil and gas capital of Europe. At the Chamber, we believe the region must evolve its position to being recognised as the energy capital. Whilst hydrocarbons will continue to be essential in driving our economy for years to come, the generation of renewable resources will play an increasingly important role in providing cost-effective power, innovative development and economic growth.

Aberdeen & Grampian Chamber of Commerce

The enthusiasm and dedication of the early group that would become AREG was fundamental in us choosing to launch All-Energy in Aberdeen. The first tiny show was held in 2001, and AREG’s Chairman at the time, Jeremy Cresswell, played such an active role that I often describe him in terms such as All-Energy’s ‘midwife’. All-Energy is now the UK’s largest renewable and low carbon energy exhibition and conference in terms of number of attendees, space booked, and number of exhibiting companies. As AREG became firmly established, their presence and support for the event grew spectacularly over the years. We thank them most sincerely for their invaluable input.


Vattenfall has forged a strong working relationship with AREG through the development of the European Offshore Wind Deployment Centre. AREG has worked tirelessly on behalf of the North East and it can take enormous credit for the growth of sustainable energy in the region and the path it has cleared for the region to capture further investment.


Aberdeen City and Shire is emerging as a key location for renewables by successfully transferring its world-class oil and gas expertise into the sector and AREG has done much to advance this through a broad range of initiatives. It has acted as a catalyst in driving further investment in the local economy by engaging with companies, Government, public bodies and existing projects and we have been pleased to support their efforts. Scottish Enterprise will continue to engage with AREG as we increase Scotland’s use of renewable energy.

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