Offshore Technology Yearbook 2O18 Turning experience into customer value: Greater rotor for greater benefit Siemens Gamesa puts the power in your hands. The new SG 8.0-167 DD, with its B81 blades, allows for an 18 % greater swept area and up to 20 % higher annual energy production than the SG-7.0 offshore direct drive turbine. As part of the proven offshore direct drive platform, the SG 8.0-167 DD utilizes known technology, combined with its rotor upgrade, to offer customers reliable revenue streams with reduced cost of energy and mitigated risk. This is how we turn more than 25 years of offshore experience into customer value. www.siemensgamesa.com 2O18 21 June 2018 03 2O18 Market leaders break from the pack with Cable-lay vessels have 8MW and 9.5MW models heading for the water been added to the in next two years, writes Todd Westbrook listings stable for reNEWS Offshore Technology Yearbook 2018, the he heavy hitters of the Industry observers said they pioneers into 10MW-plus offshore turbine world expect both the 8.0-167 technology over the last 10 third edition of our Tare inching towards and V164 offerings to ramp years,” he said. indispensible guide to 10MW territory as part of a up nameplate capacity China still plays host to journey expected to result in following initial operational a dizzying array of turbine the hardware and assets hardware rated at 13MW to experiences, further fine- technologies, many previously required to deliver an 15MW before the middle of tuning of control systems and adapted from onshore the next decade. site-specific assessments. machines but increasingly offshore wind farm. Siemens Gamesa and An unnamed manufacturer with an offshore-only focus MHI Vestas are dominating is already discussing designed specifically for lower the market with top-tier deployment of a 10MW-plus wind speeds. offerings designed to produce prototype turbine at an CSIC Haizhuang installed maximum returns from offshore wind port facility in its H151-5.0MW technology projects being built both in Rotterdam from end-2019, last year at Huaneng Rudong the increasingly subsidy-free although it is unclear whether and was poised to supply northern European sector that will be targeted for two units to the struggling and emerging nations. eventual use onshore or off. Dounreay Tri floating demo The Danish manufacturer’s Rival manufacturers off Scotland. Envision has a V164-9.5MW machine, which continue to offer 6MW-class range of turbines for its home only reached prototype stage hardware while looking to market but will have high last year, has already been make a quantum leap to hopes for the success of its lined up for nine projects 10MW-plus machines without top-tier 136/4.2MW machine. including Parkwind’s 224MW the intermediate steps taken Goldwind continues to Northwester 2 off Belgium as by the current market leaders. offer its 3MW turbine ahead soon as next year. GE aims to have its of planned installation of Other conditional or Haliade-X 12MW prototype a prototype for its GW6.X CONTENTS: preferred orders include installed at a European site platform this year. The latter EDPR’s 950MW Moray East off in mid-2019. The direct- will feature 6.45MW and CURRENT Scotland and Innogy’s 860MW drive machine will feature 6.7MW iterations and blades TURBINES p3 Triton Knoll off England while blades of 107 metres and ranging between 154 metres the turbine is also expected include power electronics and 171 metres. HISTORIC to feature off the Netherlands in the nacelle to minimise Ming Yang is installing TURBINES p16 and Taiwan. the amount of offshore 3MW and 6MW models Siemens Gamesa took the commissioning. produced under licence from FLOATING wraps off its 8.0-167 model Certification is expected in German technology developer CONCEPTS p41 late last year. The German- mid-2020 followed by serial Aerodyn Engineering while Spanish company said at the production the same year also developing an in-house INSTALLATION time the 167-metre rotor with deployment due in 2021. 6.5MW model, although VESSELS p53 would provide “even higher Senvion is leading details of the latter from what energy yields at lower wind the 14-strong ReaLCoE is no longer a listed company CABLE-LAY speeds”. consortium in pursuit of a are few and far between. VESSELS p69 Orders have already been long-mooted turbine of more Shanghai Electric last year lined up for 11 wind farms, than 10MW. A pre-series extended a long-standing FABRICATION starting in 2020 with delivery offshore array is planned licence deal with Siemens to Orsted’s 752MW Borssele for 2021 to validate the Gamesa and will produce YARDS p75 1&2 off the Netherlands and concept, which itself will build a local version of the Otary’s 266MW Mermaid and on a “successful prototype new 8.0-167 turbine. The 246MW Seastar off Belgium. operation” due at an expanded Sewind line-up is PROJECT POINTER Further supply deals will unspecified date in the next likely to remain one of the Turn to page 82 for an follow off Denmark, France few years. most popular platforms off index of offshore wind and Taiwan. One long-time independent mainland China. farms and the turbine models deployed along The manufacturer has developer of large-scale The nascent US market with a cross-reference already produced initial B82 offshore turbines said it is is so far content to look to to their main OTY2018 blades for the prototype encouraging to see lessons Europe for turbine supply listings. and is at an advanced stage learned across the industry but, as happened with its Images are reproduced with fabrication of the tower, being put into practice at onshore wind sector, calls courtesy of the relevant manufacturer/owner-operator nacelle, generator and hub. actual projects. for local content will become unless otherwise stated. The first iteration will go “It is satisfying to see the impossible to ignore should Front cover image courtesy of up onshore in autumn at the market catching up with the the country’s multi-gigawatt www.innogy.com Osterild test site in Denmark. work done by some of the ambitions become a reality. n CURRENT TURBINES 2O18 21 June 2018 04 2-B Energy 2B6 PROJECT DEPLOYMENT VITAL STATISTICS IEC class I Key characteristics Offshore projects Rotor diameter 140.6m Two-bladed downwind turbine designed for a 40-year service life with ‘an integral 0 Power rating 6.0MW plant approach’. The design has two nacelle levels, a passive cooler platform, a Number of blades 2 self-aligning ‘soft yaw’ system, and a lattice-type welded truss tower. The latter ‘open’ Product status Orientation Downwind structure extends from the seabed to the nacelle yaw bearing. Prototype installation completed in Operation Pitch-controlled variable speed Eemshaven, Netherlands, September Head mass N/A Product notes 2015 Specific power 386W/m2 1. 6.2MW configuration with potential 12MW machine also proposed. Prototype 2015 2. Modular platform design aimed at rapid upscaling in line with market demand. Track record Introduction 2007 3. ‘Soft yaw’ capability means the rotor follows wind direction changes automatically 1 (onshore prototype) Usage Offshore in normal operating mode, and then only requires some nacelle yaw dampening Power electronics Medium voltage motion. In emergency situations, like a combination of extreme weather and/or generation system eliminates full size turbine failure, eight yaw motors are activated for bringing the turbine into a safe transformer at turbine level non-operating position. The extra ninth motor provides system redundancy. Drive train Non-integrated high-speed 4. Small MV transformer connects the modular converter and other power consumers. geared, four-point gearbox support, three-stage gearbox with side torque supports and a DFIG Adwen AD 5-135 PROJECT DEPLOYMENT VITAL STATISTICS IEC class I/S Key characteristics Offshore projects Rotor diameter 135m Evolution of offshore-dedicated first-generation ‘super class’ Multibrid M5000-116 1 – Wikinger, Germany (70 units, installed Power rating 5.0MW with new enlarged rotor, +35% rotor swept area and in-house blades. 2017 commissioning ongoing) Number of blades 3 Orientation Upwind Product notes Product status Operation Pitch-controlled variable speed 1. Generates ±8% more energy than the M5000-116 at 9 metres per second mean No longer offered for commercial sale Head mass 375T (nacelle 235T, rotor 140T) wind speed sites found on the French coast but diminishing difference at higher following discontinuation of Adwen Specific power 349W/m2 wind speed (North Sea) sites. product line in wake of merger of Siemens Prototype 2013 2. German engineering consultancy Aerodyn Energiesysteme presented initial concept and Gamesa Introduction 2011 of this patented design with 100-metre rotor diameter in 1998. Usage Offshore 3. The third Multibrid 5MW technology owner/licensee Prokon Nord installed M5000 Track record Power electronics Tower base prototype in 2004; this initial model has rather small nacelle and was later renamed 1 M5000-135 prototype, 70 offshore Drive train Fully integrated highly compact onshore version. The fourth owner Areva Wind (51% share 2007) developed a new drivetrain comprising 1.5-stage offshore version with spacious service-friendly nacelle. planetary gearbox with i = 1:10 step-up 4. Gearbox journal bearings are a genuine wind industry novelty. Single rotor bearing. ratio and PMG incorporated in compact 5. Full nacelle exchange when major mechanical issue occurs. single load-carrying cast structure Aeromaster 5.0 PROJECT DEPLOYMENT VITAL STATISTICS IEC class IIB Key characteristics Offshore projects Rotor diameter 139m Compact high-speed geared Aeromaster 0 Power rating 5.0MW wind turbine design available with either Number of blades 3 squirrel-cage induction type generator or Product status Orientation Upwind PMG.