Wind · Nexsphere Pty Ltd · Wind Turbine - Offshore
Stats window 29 May 2026 04:00 → 30 May 2026 04:00 AEST
29 May 2026 04:00 → 30 May 2026 04:00 AEST
| Capex total (greenfield) |
$2,153.00M
How this was derived Reference |
|---|---|
| Capex refurbishment |
—
|
| Capex / MW |
$4,306,000
How this was derived Reference |
| Capex / MWh storage |
—
|
| Fixed OPEX (annual) |
$87.29M
How this was derived Reference |
| Fixed OPEX / MW-yr |
$174,573
How this was derived Reference |
| Variable OPEX / MWh |
$0.00
|
| Fuel cost / GJ |
$0.00
How this was derived Reference |
| Heat rate GJ/MWh |
—
How this was derived Reference |
Confidence: low · Status: ai estimated · Capex basis: default · AI checked 04 Jun 2026
Notes
No generator-specific FID, EPC contract value, PPA, O&M contract, or financing disclosures were found for the Bass Offshore Wind Energy Project. Capex and O&M are therefore estimates scaled to the user-specified 500 MW capacity from AEMO/Aurecon 2024 fixed-bottom offshore wind assumptions for a plausible NEM project. Current project materials describe a larger initial project of up to 1,500 MW, while older Nexsphere materials described 500-1,000 MW; this JSON preserves the user's 500 MW generator capacity for financial scaling. The project appears prospective rather than committed: DCCEEW stated the Bass Strait feasibility licence application period closed on 10 April 2025 and a preliminary decision had been made not to award a licence; Infrastructure Pipeline records expected construction completion in January 2032 and notes Equinor withdrew in July 2025, leaving Nexsphere as sole owner. No refurbishment or closure plan was found because the project is not operating.
No reported project-specific construction cost, FID budget, O&M contract, PPA/offtake terms, or operating performance data were found for the Bass Offshore Wind Energy Project. The capex and O&M values above are technology-default estimates scaled to the user-provided 500 MW capacity using Aurecon's 2024 AEMO fixed-bottom offshore wind benchmark: AUD 4,306/kW capex and AUD 174,573/MW-year fixed O&M. Scope is a hypothetical NEM fixed-foundation offshore wind project; the benchmark includes equipment, installation, development/project management, and a country-specific component of grid connection cost, but explicitly does not include land, lease and development in the same way a final project budget would. Nexsphere/Equinor described BOWE as fixed-bottom, about 30 km off north-east Tasmania, multi-billion-dollar and scalable to multiple GW. Current owner/project-status risk is material: Infrastructure Pipeline reports Equinor withdrew in July 2025 and Nexsphere became sole owner; a 23 January 2026 ministerial release says a preliminary decision was made not to offer Bass Strait feasibility licences due to lack of competitive bids. Therefore the assumed 500 MW generator should be treated as prospective/uncommitted, not a committed NEM generator. No major refurbishment plan was found; closure/decommissioning date not applicable because the project is not operating.
No generator-specific final investment decision, EPC contract, capex budget, O&M contract, PPA, or fuel contract was found. Financial values are estimated for a 500 MW fixed-bottom offshore wind project using AEMO/GHD 2025 technology assumptions: AUD 5.216 million/MW capex and AUD 175,000/MW/year fixed O&M. This is appropriate only as a technology default because the project remains prospective and site-specific seabed, water-depth, port, cable route, grid connection, and procurement scope are not final. Infrastructure Pipeline describes the project as 70-100 fixed-bottom turbines with up to 1.5 GW capacity and connection to George Town; the user-supplied 500 MW capacity is used for scaling. The official DCCEEW Bass Strait page was last updated 23 January 2026 and states the feasibility licence application period closed on 10 April 2025 and a preliminary decision has been made to not award a licence, creating material development risk. AEMO/GHD assumes fixed-bottom offshore wind is first commercially viable for construction in Australia in 2032, with 25-year economic life and 30-year operational life, although lifetime may increase to 35+ years with extension or repowering. Operational emissions are treated as zero for wind generation; this excludes embodied/lifecycle emissions.