Siemens Gamesa books Reygar vessel monitoring boost

Reygar has been commissioned by Siemens Gamesa to develop a motion comfort monitoring tool capability within its BareFleet remote monitoring and reporting platform for vessels supporting multi-day work at the manufacturer’s projects.

The new system will track and analyse motion, fuel consumption and crew sickness in different cabin locations, with a specific focus on boosting safety and fitness to work aboard vessels.

Reygar said the system that Siemens Gamesa has commissioned automatically monitors the health and performance of critical equipment across each vessel, inclusive of engine health, CO2 emissions, fuel consumption, motion, and impact onto the turbine.

The tool also allows the crew to manually input supplementary data and observations into a customer-specific digital reporting platform, with the resulting DPR form customised to bring Siemens Gamesa’s own performance indicators and priority data fields – such as crew comfort – to the fore.

Reygar managing director Chris Huxley-Reynard said: “As wind projects move further offshore into areas of higher wind resource, it is paramount that charterers and vessel operators are equipped with the true understanding of vessel motions and personnel comfort they need to keep these projects – and the people constructing and maintaining them – performing at their best.

“Motion data measured across different cabin locations and different vessels, sourced via BareFleet while in transit and while idling, will advise Siemens Gamesa’s chartered vessel operators on how to guarantee the crew and technicians are housed and transported in such a way that they can continue do their jobs effectively across multi-day projects.”

Siemens Gamesa head of offshore service logistics Rene Wigmans said: “With the global energy transition well underway, we are increasingly focused on how digitalisation can power the efficient and safe roll-out of our technology across projects in exciting, rapidly growing markets such as the US and Taiwan.

“Our work with Reygar to further integrate BareFleet’s detailed motion reporting into our offshore activity will support our team in maximising operational efficiency and reducing vessel CO2 emissions whilst securing the health and comfort of our crew as they work on these flagship – yet often remote – sites.”

Source:, 2020/12/14

Taiwan cuts offshore wind tariffs

Taiwan has reduced its feed-in tariff (FiT) for offshore wind projects signing 20-year power purchase agreements (PPAs) in 2021 by 8.5%, compared with 2020 rates.

The FiT cuts, confirmed by the Ministry of Economic Affairs today, are in line with those proposed by the ministry in December.

The main rate for projects signing 20-year PPAs from 1 January in 2021 is NT$4656.8 (€135.6) per megawatt-hour (MWh), down from NT$5094.6/MWh in 2020.

Projects also have a “ladder” option of NT$5306.4/MWh for the first 10 years and NT$3520.6/MWh for the second 10 years, down from NT$5801.5/MWh and NT$3822.7/MWh in 2020.

The government lowered 2020 rates by around 8% compared with 2019.

Source:, 2021/1/7

Asian offshore wind market to match Europe within five years

Asian offshore wind capacity will grow sixfold to 52GW by 2025, according to new reasearch. China will continue to dominate, but foreign developers will drive major growth in Taiwan and Vietnam.

According to analysis compiled by Norwegian consultancy Rystad Energy, Asia has grown from practically zero offshore capacity in 2015 to more than 6GW today.

Fuelled by China’s growth, by 2025, the region’s installed capacity is expected to grow sixfold to 52GW — almost on a par with what Europe is expected to reached by then (see chart). At present,  China accounts for more than 94% of Asia’s current operational offshore wind capacity — 5.9GW of the 6.3GW total.

The remaining 6% of current operational offshore wind is found in Taiwan (128MW), Vietnam (105MW), South Korea (99MW) and Japan (56MW).

Chinese boom to beat tariff changes

The Chinese government is phasing out its offhore feed-in-tariff after 2021, which Rystad Energy believes will create a rush of large projects moving through the construction pipeline. For those that miss this deadline, the consultancy anticipates many developments will have already reached a critical point in the construction process and so will accept a slightly reduced feed-in-tariff. 

Under this scenario, Rystad Energy expects offshore wind development in China to continue rising substantially before slowing down in 2025. However, China will still lead the sector’s growth across Asia Pacific, although its share of installed capacity is forecast to decline from 94% to about 70%.

“Asia will provide substantial opportunities for international suppliers, but further down the road it could also signal stiffer global competition as local Asian players become seasoned in this new industry and start expanding beyond their home markets,” said Alexander Fløtre, Rystad Energy’s product manager for offshore wind.

In China, only Siemens Gamesa has managed to enter the market, if indirectly through a licensing agreement with Shanghai Electric, while Chinese turbine manufacturers such as MingYang and Goldwind dominate installations. 

Emerging markets

However, Taiwan and Vietnam are predicted to put forward “substantial volumes” of offshore capacity in the short to medium-term. According to the analysis, Taiwan’s offshore capacity is expected to ramp up significantly due to opportunities for non-Asian developers and suppliers. 

And by 2025, Vietnam is expected to reach around 6.1GW of capacity with the lion’s share (75%) coming from intertidal projects — wind farms that are offshore by definition but are located very close to shore and in shallow waters.

Source: WIND POWER, 2020/12/11

Shipyards tackle complicated conversions and vessel upgrades


A new concept of floating wind turbine allows the whole floating unit to weathercock to the wind direction thus potentially saving on costs and complexity.

The SelfAligner concept is based on a passive wind tracking system with the turbine connected to a turret buoy mooring, allowing the entire platform to rotate freely around the mooring point and has shown considerable promise during early tank test trials. An airfoil cross section shaped tower rather than a round one, provides the necessary forces for the alignment using the prevailing wind direction. The Hamburg University of Technology (TUHH) has investigated and optimised the concept for the self-aligning floating wind turbine platform, with the investigations carried out in cooperation with several scientific and industrial partners. GNING

“The nacelle of the wind turbine is mounted directly on the tower because no yaw bearing is required to allow the rotor mounting to turn. The rotor is arranged downwind behind the tower and due to the aerodynamic shape of the tower, its wind wake is reduced, which has a positive effect on the dynamic load on the rotor blades. “Thus, the blades experience a significantly lower impact load as they pass the tower,” a spokesperson from TUHH explained.

The semi-submersible structure of the platform that forms the floating section, can be installed in water depths of more than 40 metres, and its passive wind aligning is made possible through the profiled tower and downwind rotor configuration. The lightweight construction of the platform allows it to be constructed at conventional shipyards without modifications to the production facilities and it is claimed that this makes the concept cost-effective, according to TUHH. Also highlighted by the developers is the easy installation and removal of the floater due to its detachable single-point mooring, as well the SelfAligner’s reduced environmental impact.

The project partners include CRUSE Offshore, the TUHH with the Institute for Fluid Dynamics and Ship Theory and the Institute for Ship Structural Design and Analysis, DNV GL, Aerodyn, and Jörss-Blunck-Ordemann. For the investigations and optimisation, the project partners used resources such as the panMARE method from the Institute for Fluid Dynamics and Ship Theory, as well as a 1:45 scale model of the platform in a wave tank.

By Dag Pike

Source: MARITIME JOURNAL , 2020/11/27