Onshore Substation Opportunities - Regensw
Onshore Substation Opportunities
Department 6/8/2011
PAGE 1
The function of the onshore substation > The onshore substation provides the interface between the transmission grid and the wind farm > This involves: – Transforming the voltage from that exported from the wind farm to that of the local grid. – Ensure electricity is grid code compliant – Isolating the wind farm from the grid to ensure that problems on one side do not lead to damage on the other.
Department 6/8/2011
PAGE 2
Project timetable > The onshore substation is often the first piece of the wind farm’s infrastructure to be put in place, mostly completed before offshore work starts. > The timescale of the substation contracting and build will reflect the approach being taken to the construction of the wind farm. > For Atlantic Array construction will take place in up to three separate phases > Each of the three phases could be contracted separately, providing distinct opportunities for companies. Although companies awarded contracts for the first phase will be well placed for subsequent phases. > National Grid will construct a smaller substation in the same compound which will also provide opportunities Department 6/8/2011
PAGE 3
How the onshore substation is contracted > The substation typically forms part of a contract package which includes both the onshore and offshore substations but not the cabling. > Across the industry, these packages have generally been awarded to major electrical engineering companies. These include ABB, Alstom Grid, Siemens and Mitsubishi. > These companies will supply high and medium voltage equipment and subcontract low voltage supply, installation and civil works. > Typical cost for a 500MW wind farm substation is in the region of £35 milllion
Department 6/8/2011
PAGE 4
Grid connection package subcontracts and cost breakdown Grid connection package Subcontract Onshore substation
Offshore substation
Electrical
Electrical
Steel structures
Topside fabrication
Civil design
Foundation fabrication
Civil works
In house supply
Other 20%
Civil engineering 10%
High voltage and medium voltage equipment 55%
Installation 15%
Substation installation
Other components, eg standby generators, fire systems, air conditioning
Department 6/8/2011
PAGE 5
Onshore substation components
Department 6/8/2011
PAGE 6
Onshore substation components
Landscaping
Architectural design
Welfare, storage and warehousing Steelwork
Security & flood defence
Department 6/8/2011
PAGE 7
Issues for local suppliers > Onshore substation installation is a well-established market. > Main contractor will have established relationships with specialist companies. > Opportunities for local suppliers to in providing civil engineering services and tier 3 supply to electrical installers. > Gwynt y Môr – Jones Brothers awarded - 1.8m enabling works for substation > Health and safety requirements for working in high voltage compounds.
Department 6/8/2011
PAGE 8
Department 6/8/2011
PAGE 1
The function of the onshore substation > The onshore substation provides the interface between the transmission grid and the wind farm > This involves: – Transforming the voltage from that exported from the wind farm to that of the local grid. – Ensure electricity is grid code compliant – Isolating the wind farm from the grid to ensure that problems on one side do not lead to damage on the other.
Department 6/8/2011
PAGE 2
Project timetable > The onshore substation is often the first piece of the wind farm’s infrastructure to be put in place, mostly completed before offshore work starts. > The timescale of the substation contracting and build will reflect the approach being taken to the construction of the wind farm. > For Atlantic Array construction will take place in up to three separate phases > Each of the three phases could be contracted separately, providing distinct opportunities for companies. Although companies awarded contracts for the first phase will be well placed for subsequent phases. > National Grid will construct a smaller substation in the same compound which will also provide opportunities Department 6/8/2011
PAGE 3
How the onshore substation is contracted > The substation typically forms part of a contract package which includes both the onshore and offshore substations but not the cabling. > Across the industry, these packages have generally been awarded to major electrical engineering companies. These include ABB, Alstom Grid, Siemens and Mitsubishi. > These companies will supply high and medium voltage equipment and subcontract low voltage supply, installation and civil works. > Typical cost for a 500MW wind farm substation is in the region of £35 milllion
Department 6/8/2011
PAGE 4
Grid connection package subcontracts and cost breakdown Grid connection package Subcontract Onshore substation
Offshore substation
Electrical
Electrical
Steel structures
Topside fabrication
Civil design
Foundation fabrication
Civil works
In house supply
Other 20%
Civil engineering 10%
High voltage and medium voltage equipment 55%
Installation 15%
Substation installation
Other components, eg standby generators, fire systems, air conditioning
Department 6/8/2011
PAGE 5
Onshore substation components
Department 6/8/2011
PAGE 6
Onshore substation components
Landscaping
Architectural design
Welfare, storage and warehousing Steelwork
Security & flood defence
Department 6/8/2011
PAGE 7
Issues for local suppliers > Onshore substation installation is a well-established market. > Main contractor will have established relationships with specialist companies. > Opportunities for local suppliers to in providing civil engineering services and tier 3 supply to electrical installers. > Gwynt y Môr – Jones Brothers awarded - 1.8m enabling works for substation > Health and safety requirements for working in high voltage compounds.
Department 6/8/2011
PAGE 8
