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8/20/2019 MLK Projects Brochure COSS http://slidepdf.com/reader/full/mlk-projects-brochure-coss 1/6  COSS Compact Offshore Substation  Reduction in CAPEX and OPEX patent pending

MLK Projects Brochure COSS

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Page 1: MLK Projects Brochure COSS

8/20/2019 MLK Projects Brochure COSS

http://slidepdf.com/reader/full/mlk-projects-brochure-coss 1/6

  COSS

Compact Offshore Substation  Reduction in CAPEX and OPEX

patent pending

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Offshore Challenges The prime function of an offshore AC substation is to con-

nect, transform and transport the power from the wind

turbines towards the grid connections or an HVDC linking

point. Size and weight are crucial in designing offshore

installations. Offshore reliability and asset maintenance

demands, require new approaches in the application of

high voltage system technology and redundancy concepts

in a harsh environment new to the power industry.

 

With initial partners KCI and Toshiba, Liandon has develo-

ped a new Compact Offshore Substation (COSS) to address

these challenges. The core design element is to remove the

heavy oil based transformers on an offshore substation

including their space and weight consuming auxiliary sys-

tems such as oil store/dumping tanks etc.

OBy using Gas Insulated Switchgear (GIS) and Gas Insulated

 Transformers (GIT), the COSS platform design delivers an

optimal weight/power ratio compared to conventional

offshore substations. Due to the lack of oil, the risk for fire

or explosions has been reduced to virtually zero. The weight

reduction leads to more installation flexibility due to the

amount and availability of appropriate installation vessels.

The development of high power electrical installations for offshore application requires an entirely

different approach to construction, installation, commissioning, operation and maintenance.

Using onshore proven technologies and best practices as the major design drivers in offshore sub-

station applications, has resulted in topsides that are too heavy driving both CAPEX and offshore

installation cost to an extreme level.

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Offshore Substation 2.0 The Compact Offshore Substation (COSS) has been designed around two

(SF6) Gas Insulated Transformers (GIT) with a total power of 360 MVA.

Although new to offshore applications, GIT’s have a 40 years proven track

record in power applications mainly situated in the Far East.

Designed to address the needs for compact and explosion free use, the

GIT has developed into a mature transformer solution for dedicated

power applications. The reduced weight and space required by GIT’s make

these transformers an ideal replacement for oil transformers in offshore

substation platforms. With MV switchgear for incoming and HV Gas

Insulated Switchgear for the outgoing cable connections, the COSS plat-

form complies with state of the art offshore wind park requirements. New

patent-pending designs on horizontal GIT replacement handling, have

contributed to a lower weight and gravity point of the topside construction.

EPIC DeliveryMLK Projects is fully competent to turn key deliver offshore substations.

Extensive experience in all stages of an EPIC project is available. Services

and activities include design, engineering, procurement, construction,

manufacturing, conservation, preservation, load out, sea fastening,

assembly/erection, installation, commissioning and start up.

Compact OffshoreSubstation benefits

  Reduced weight

  Fit for purpose = lean design

  Power 360 MVA

  Strongly reduced risk for fire/explosions

  Compact modular design

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Reduced O&M due to smart design  The COSS platform is designed to minimize maintenance

requirements compared to conventional offshore sub-

stations. The “less is more” COSS design strategy has

resulted in an optimal layout and accessibility for O&M

activities during the lifetime of the substation. Minimum

downtime for O&M services has been addressed in the

COSS basic design.

Our O&M strategy concept is focused at condition based

maintenance and incremental improvements to conti-

nuously reduce the yearly OPEX spending. We offer 24/7

remote monitoring and alarm management services,

including first line and second line of response by our

team of technicians. Our framework of operation services

includes daily wind park operation, maintenance coor-

dination, incident management, performance & QHSE

management, reliability & integrity management and

all support process services needed. We perform long

term O&M services in the areas of primary HV power

systems, all secondary utilities equipment and structural

preservation/touch-up.

MLK Projects has a basic workforce for offshore O&M

activities of 120+ service technicians.

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The experts behind MLK ProjectsMLK Projects was founded by Liandon, part of major Dutch power distribution company Alliander, in close coopera-

tion with Mercon and Imtech. As associated engineering company, KCI has contributed strongly to the COSS design

and developments.

LiandonHigh Voltage applications have always been the expertise domain of Liandon. Respon-

sible for the design, construction and maintenance of the Alliander network, Liandon

has gained extensive experience on HV substations and power cable connections. With

730+ employees, Liandon takes care of over 100HV substations including some 460HV

transformers. Liandon’s operational field expertise has resulted in the design concept

for the COSS solution.

ImtechWith over 27000 employees, consortium member Imtech forms a strong partner in the

design and delivery of COSS projects and onshore related project activities. Imtech’s ex-

pertise is used in the area of electrical and mechanical services, including design, project

delivery management and offshore maintenance. Imtech is one of the largest players in

the GreenTech market in Europe. Around 30% of Imtech’s total revenue is derived from

green technology and sustainability.

MerconIn Mercon’s philosophy, quality & innovation combined with on time delivery lead to

customer satisfaction. With two excellent equipped yards with direct access to open

sea, consortium partner Mercon offers the right production facilities for the fabrication

of COSS topsides and substructures. Building on a history of over 35 years in the

construction of offshore platforms, Mercon has developed itself into an experienced

EPIC contractor. Mercon employs a workforce of 450 engineers and craftsmen. Both

yards have the capacity to scale up to 800 men each.

KCI

KCI is a multidisciplinary engineering firm providing full design, engineering and con-sultancy services to both Oil & Gas and Offshore Renewables Industry. As associated

engineering company to MLK Projects, KCI uses its in depth expertise to turn the inno-

vative COSS concept into a Substation 2.0; a next step in offshore substation technology.

KCI’s disciplines encompass: Process, Piping, E,I & C, Mechanical Rotating, Structural, R&D,

Mechanical Structures, Subsea and Hydrodynamics. KCI’s services include: Procurement,

Expediting, Execution Management and HSE.

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Sustainable Energy Technology from A to Z

MLK ProjectsKrinkelwinkel 6-8

4202 LN Gorinchem

P.O. Box 254

4200 AG Gorinchem

 The Netherlands

Phone +31 (0)183 668 822

E-mail [email protected]

Website www.mlk-projects.com