Hitachi Energy has been selected by Marinus Link Pty Ltd (MLPL) to supply a high-voltage direct current (HVDC) project , which will augment the connection between mainland Australia and Tasmania's grid. The connection will enable the Tasmanian state to import excess supply of solar and wind produced in Victoria, while reserving its hydro and storing the extra energy. Clean hydropower can then feed the mainland grid when it is needed most, acting as a large battery for the nation. Moreover, it strengthens the security of supply in the Australian power grid in which electricity is increasingly generated from sustainable energy. The project will be executed in two stages and result in two 750MW HVDC links between Hazelwood in Victoria and Burnie in Tasmania.
As part of the first stage of the project, Hitachi Energy will supply its HVDC Light voltage source converter (VSC) stations, which will include the HVDC converter valves; the MACH digital control platform, converter power transformers and high-voltage switchgear; as well as system studies, design and engineering, supply, installation supervision and commissioning. Hitachi Energy intend to go to the Australian market for various scope packages which will include typical goods and services as listed below:
Converter Stations goods and Services required in Tasmania and Victoria:
- Transformer oil
- Distribution / Auxiliary Transformers
- LV AC Switchgear
- MV AC Switchgear
- Battery Systems and UPS
- Diesel Generators
- Yard Material
- Service platform - EWP'S
- Safety Equipment suppliers
- General Equipment hire
- Installation services
- Transformer Noise enclosures
- Heavy Duty transport
- Traffic control services
- Car rental
- Accommodation
- Possible apprenticeship for suitable candidates
Hitachi Energy will engage the market for the above-mentioned scope packages over the duration of the project which is expected to commence in November 2024 and conclude in October 2029.
Scope packages will specifically be looking for engagement within the regions of the project to encourage and support growth and sustainability within the local communities.
EOI Process Information:
* Hitachi Energy will aim to shortlist suppliers based on preliminary information provided during the Expression of Interest Round.
* Qualification process will be undertaken with shortlisted suppliers.
* Company and Product qualifications will be concluded by Hitachi Energy global Supply chain
* Hitachi energy supplier onboarding process will be initiated after a Non Disclosure Agreement is signed with each supplier.
HOW TO REGISTER AN EXPRESSION OF INTEREST (EOI)
- To submit an EOI, companies must have an ICN Gateway company profile. Information on how to register your company on ICN Gateway is detailed below.
- This is an initial, generic EOI submission only. All companies who submit an EOI will be included in information presented to companies who are short listed to bid for this Project.
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HITACHI ENERGY AUSTRALIA PTY LTD
TAS, VIC Australia
Project Primary Contact
The DC system is designed to provide uninterrupted power to the station control system and to all other DC supplied equipment in the converter station. The cubicles hold a complete DC-system with rectifier, battery monitoring and distribution and a complete uninterrupted AC-system with inverter(s) and electronic switch (static switch), fed from the DC-system and with back-up from the AC-distribution.
Station 1 - Converter Station Tasmania (Heybridge- S1)
Station 2 - Converter Station Victoria (Hazelwood- S2)
Technical data :
The DC System shall have the following main technical data.
1. Nominal voltage: 110V DC
2. Max. voltage : 121 V
3. Min. voltage : 93,5 V
4. Battery Type - OPzV Valve regulated lead-acid batteries
5. Battery Charger Power supply - 3 x 400 V AC, 10%
Download additional technical information
Note: You can fill out an Expression of Interest form exclusively on a computer or laptop device.
The auxiliary transformer systems will be used for supply of auxiliary power to
Station 1 Converter Station and Station 2 Converter Station, via the low voltage switchgear as ordinary auxiliary power sources.
Station 1 Converter Station Victoria (Hazelwood)
Station 2 Converter Station Tasmania (Heybridge)
Eight (8) distribution transformers are required, four (4) for Station 1 converter station and four (4) for Station 2 converter station.
Technical data:-
1. Type of transformer: Dry type, cast resin air insulated
2. Service conditions: Indoor
3. Rated power:1600 kVA
4. Rated voltages:22/0.4 kV
5. Rated frequency:50 Hz, 1 Hz
6. Short circuit impedance:6%.
7. Number of phases:3
Note: You can fill out an Expression of Interest form exclusively on a computer or laptop device.
Low Voltage Switchgear The low voltage switchgears will be installed in the auxiliary power rooms. They are used for the supply of power to various equipment such as distribution boards, valve cooling system, cooling equipment for the converter transformers, DC equipment, air-conditioning, ventilation, etc.
Station 1 - Converter Station Tasmania (Heybridge- S1)
Station 2 - Converter Station Victoria (Hazelwood- S2)
Technical Data for both station
1. Material in bus bars: Copper
2. Insulation medium: Air
3. Rated operational voltage: 400 V
4. Rated insulation voltage: 1000 V, r.m.s.
5. Rated current, horizontal bus bars: 3200A
6. Rated current, horizontal bus bars: 100A (F-Distribution cabinets)
7. Rated short time withstand current: 50kA, 1 sec
8. Rated frequency: 50Hz
9. Size of feeding transformer: 1600kVA
10. Degrees of protection: IP42
Download additional technical information
Note: You can fill out an Expression of Interest form exclusively on a computer or laptop device.
The medium voltage switchgears will be used for supply of power to the station Auxiliary distribution transformers in Heybridge(=S1) and Hazelwood(=S2) Converter Stations.
Station 1 - Converter Station Tasmania (Heybridge- S1)
Station 2 - Converter Station Victoria (Hazelwood- S2)
Technical Data:
1. Rated voltage (Ur): 24KV
2. Nominal voltage: 22 kV, 10%
3. Rated frequency (fr): 50 Hz, 5%
4. Number of phases: 3
5. Rated insulation level:50 kV rms, 125 kV peak
6. Rated normal current (Ir):630 A
7. Material in busbars: Copper
8. Insulation medium: Air
9. Degree of protection (IP class): IP42
10. Type of breaker: Vacuum
Technical Data: Station 2 - Converter Station Victoria (Hazelwood- S2)
1. Rated voltage (Ur): 36KV
2. Nominal voltage: 22 kV, 10%
3. Rated frequency (fr): 50 Hz, 5%
4. Number of phases: 3
5. Rated insulation level:70 kV rms, 170 kV peak
6. Rated normal current (Ir):630 A
7. Material in busbars: Copper
8. Insulation medium: Air
9. Degree of protection (IP class): IP42
10. Type of breaker: Vacuum
Download additional technical information
Note: You can fill out an Expression of Interest form exclusively on a computer or laptop device.
One (1) Diesel generator system for Station 1 converter station Victoria (Hazelwood) and one (1) Die-sel generator system for Station 2 converter station Tasmania (Heybridge) shall be provided. Each DG-set shall be installed in prefabricated enclosure placed adjacent to service building.
Technical data:
The Diesel generator set shall have the following main technical data.
1. Number of phases: 3
2. Rated voltage: 400 V
3. Rated output, PRP: 2000 kVA
4. Rated output, PRP: 1800 kW
5. Overload 1h/12h: 10 %
6. Rated current: 2689 A
7. Rated frequency: 50 Hz
Note: You can fill out an Expression of Interest form exclusively on a computer or laptop device.
The supplier must provide the following:
One (1) set protection panels for AC Connection Bus Zone and transformer at Hazelwood Station
One (1) set protection panels AC Connection Bus Zone and transformer at Heybridge Station
One Engineering workstations at each Hazelwood Station and Heybridge Station.
Replica protection panels and one common Engineering workstation for both stations.
The IED protection systems shall be housed in a separate free standing protection cubicle, and Hitachi Energy make IED's should be used.
Note: You can fill out an Expression of Interest form exclusively on a computer or laptop device.
