Augusta BESS

Owner: Augusta BESS Pty Ltd

Status:

Technology Type: Storage - Battery

Fuel Type: Other - Other

DUID:

Capacity: 0 MW

Full Commercial Use Date:

Expected Closure Year:

Closure Date:

Dispatch & revenue

29 May 2026 04:00 → 30 May 2026 04:00 AEST · data through 30 May 2026, 04:00

No DUID specified. Open this page from the stats list or a generator profile.

Financial overview

Type
Utility scale lithium ion bess 2 hour
Capacity
270 MW / 540 MWh
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$0.00/MWh
Capex total (greenfield) $277.30M
Capex refurbishment
Capex / MW $1,027,037
Capex / MWh storage $513,519
Fixed OPEX (annual) $4.05M
Fixed OPEX / MW-yr $15,000
Variable OPEX / MWh $0.00
Fuel cost / GJ
Heat rate GJ/MWh

All monetary values shown in 2026 real AUD (CPI-escalated). Confidence: medium · Status: ai estimated · Capex basis: default · AI checked 04 Jun 2026

Notes: No generator-specific capex, O&M contract, battery supply/EPC price, financing close, offtake/tolling agreement, or commercial operation date was found. Augusta BESS appears to remain in development/public consultation rather than committed/operational: AEMO lists it as a publicly announced storage development, and SA DEM lists its HRE Act consultation as closed on 10 March 2026. Capex is therefore a technology-default estimate, scaled to 270 MW / 540 MWh using GHD's 2025 AEMO draft cost parameters for a 2-hour standalone LFP BESS with dedicated grid connection: AUD 410/kW power component + AUD 290/kWh energy component + AUD 10m land/development allowance. The estimate excludes any site-specific network augmentation, financing costs, IDC, owner contingency, taxes, or project-specific EPC/battery procurement differences unless included in the generic benchmark. Fixed O&M uses GHD's 2-hour BESS fixed O&M plus extended warranty allowance: AUD 10,000/MW-year + AUD 5,000/MW-year = AUD 15,000/MW-year. Variable O&M is set to 0 because GHD includes variable O&M in fixed O&M. Emissions intensity is direct operational emissions only; lifecycle/embodied emissions and Scope 2 emissions associated with charging energy are not included. No firm closure date or refurbishment plan was found; closure/rehabilitation is covered in the Statement of Environmental Objectives, and the default economic/technical life is 20 years.

Sources

Last AI response

Model: gpt-5.5 · Reasoning: medium · Fetched 04 Jun 2026 07:24 · ID: resp_028e890cbf2540fd006a209b00a6c48197b70dcb1dfded716e

Parsed extraction JSON
{
    "generator_identity": {
        "site_name": "Augusta BESS",
        "duid": null,
        "owner": "Augusta BESS Pty Ltd",
        "region": "SA1 / South Australia (NEM)",
        "technology_type": "Storage - Battery",
        "fuel_type": "Other - Other"
    },
    "financial_profile": {
        "generator_type_normalised": "utility_scale_lithium_ion_bess_2_hour",
        "capex_total_aud": 277300000,
        "capex_year": 2025,
        "capex_basis": "default",
        "capex_per_mw_aud": 1027037.04,
        "capex_per_mwh_aud": 513518.52,
        "fixed_opex_annual_aud": 4050000,
        "fixed_opex_per_mw_year_aud": 15000,
        "variable_opex_per_mwh_aud": 0,
        "fuel_cost_per_gj_aud": null,
        "fuel_contract_notes": "Not applicable as a BESS has no fuel supply. Project documents describe the asset as purchasing/storing energy and releasing it to the grid; electricity charging cost is a market operating cost, not a fuel contract. No tolling, offtake, battery services agreement, or energy charging contract was found in public sources.",
        "heat_rate_gj_per_mwh": null,
        "efficiency_pct": 85,
        "emissions_intensity_tco2_mwh": 0,
        "asset_life_years": 20,
        "discount_rate_pct": null,
        "source_confidence": "medium",
        "data_status": "ai_estimated",
        "notes": "No generator-specific capex, O&M contract, battery supply/EPC price, financing close, offtake/tolling agreement, or commercial operation date was found. Augusta BESS appears to remain in development/public consultation rather than committed/operational: AEMO lists it as a publicly announced storage development, and SA DEM lists its HRE Act consultation as closed on 10 March 2026. Capex is therefore a technology-default estimate, scaled to 270 MW / 540 MWh using GHD's 2025 AEMO draft cost parameters for a 2-hour standalone LFP BESS with dedicated grid connection: AUD 410/kW power component + AUD 290/kWh energy component + AUD 10m land/development allowance. The estimate excludes any site-specific network augmentation, financing costs, IDC, owner contingency, taxes, or project-specific EPC/battery procurement differences unless included in the generic benchmark. Fixed O&M uses GHD's 2-hour BESS fixed O&M plus extended warranty allowance: AUD 10,000/MW-year + AUD 5,000/MW-year = AUD 15,000/MW-year. Variable O&M is set to 0 because GHD includes variable O&M in fixed O&M. Emissions intensity is direct operational emissions only; lifecycle/embodied emissions and Scope 2 emissions associated with charging energy are not included. No firm closure date or refurbishment plan was found; closure/rehabilitation is covered in the Statement of Environmental Objectives, and the default economic/technical life is 20 years."
    },
    "sources": [
        {
            "field_name": "site_capacity_and_location",
            "value_text": "270 MW / 540 MWh BESS at Lot 15, Port Paterson Road, Port Paterson, South Australia; connected to Davenport Substation/ElectraNet network.",
            "value_numeric": 270,
            "unit": "MW",
            "source_url": "https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf",
            "source_title": "Augusta BESS Statement of Environmental Objectives",
            "publisher": "GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "Proposed Augusta BESS is comprised of a 270 MW / 540 MWh Battery Energy Storage System.",
            "ai_summary": "The SEO verifies the project identity, scale, location and grid connection route for Augusta BESS."
        },
        {
            "field_name": "storage_capacity",
            "value_text": "Storage capacity 540 MWh.",
            "value_numeric": 540,
            "unit": "MWh",
            "source_url": "https://www.aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/sa_advisory/2025/2025-south-australian-electricity-report.pdf",
            "source_title": "2025 South Australian Electricity Report",
            "publisher": "AEMO",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "Storage developments Augusta BESS 270 540.",
            "ai_summary": "AEMO lists Augusta BESS among publicly announced South Australian storage developments with 270 MW nameplate capacity and 540 MWh storage capacity."
        },
        {
            "field_name": "development_status",
            "value_text": "Publicly announced; not identified as committed or anticipated in AEMO's October 2025 list.",
            "value_numeric": null,
            "unit": null,
            "source_url": "https://www.aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/sa_advisory/2025/2025-south-australian-electricity-report.pdf",
            "source_title": "2025 South Australian Electricity Report",
            "publisher": "AEMO",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "Publicly announced generation and storage developments with capacity of ≥200 MW, October 2025.",
            "ai_summary": "AEMO classifies Augusta BESS as a publicly announced storage development rather than a committed project."
        },
        {
            "field_name": "approvals_consultation_status",
            "value_text": "SA HRE Act public consultation for Augusta BESS closed on 10 March 2026.",
            "value_numeric": null,
            "unit": null,
            "source_url": "https://www.energymining.sa.gov.au/industry/hydrogen-and-renewable-energy/hydrogen-and-renewable-energy-act/public-consultations",
            "source_title": "Public consultations: Hydrogen and Renewable Energy Act",
            "publisher": "Government of South Australia Department for Energy and Mining",
            "published_date": "2026-05-29",
            "confidence": "high",
            "raw_excerpt": "Augusta Battery Energy Storage System (BESS) Augusta BESS Pty Ltd ... Date closed 10 March 2026.",
            "ai_summary": "The SA Government consultation page confirms the proponent, location and consultation close date for Augusta BESS."
        },
        {
            "field_name": "owner_parent",
            "value_text": "Augusta BESS Pty Ltd is a subsidiary of Trina Solar Energy Development Pte Ltd.",
            "value_numeric": null,
            "unit": null,
            "source_url": "https://augustabess.com.au/wp-content/uploads/2025/04/Augusta-BESS-Newsletter.pdf",
            "source_title": "Augusta BESS Newsletter",
            "publisher": "Augusta BESS Pty Ltd",
            "published_date": "2025-03-17",
            "confidence": "high",
            "raw_excerpt": "Augusta BESS Pty Ltd is a subsidiary of Trina Solar Energy Development Pte Ltd.",
            "ai_summary": "The project newsletter identifies the project company and its parent relationship to Trina Solar."
        },
        {
            "field_name": "project_scope_infrastructure",
            "value_text": "Primary infrastructure includes up to 288 LFP BESS containers, 96 inverter stations, transformers, 275 kV step-up connection, cabling, telecommunications, site office, maintenance building, fencing, access tracks and road entrance improvements.",
            "value_numeric": 288,
            "unit": "containers",
            "source_url": "https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf",
            "source_title": "Augusta BESS Statement of Environmental Objectives",
            "publisher": "GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "Up to 288 BESS containers with lithium iron phosphate battery cells.",
            "ai_summary": "The SEO provides a preliminary equipment scope and confirms the battery chemistry as lithium iron phosphate."
        },
        {
            "field_name": "capex_total_aud_estimate",
            "value_text": "Default estimated all-in development capex: AUD 277.3m = 270,000 kW * AUD 410/kW + 540,000 kWh * AUD 290/kWh + AUD 10m land/development allowance.",
            "value_numeric": 277300000,
            "unit": "AUD",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "2 hours: power component $/kW 410; energy component $/kWh 290; cost of land and development $10,000,000.",
            "ai_summary": "GHD's 2025 AEMO draft benchmark for a 2-hour large-scale standalone LFP BESS was scaled from 200 MW to Augusta BESS's 270 MW / 540 MWh size."
        },
        {
            "field_name": "capex_per_mw_aud_estimate",
            "value_text": "Estimated capex per MW from the default capex estimate including land/development allowance: AUD 277.3m / 270 MW.",
            "value_numeric": 1027037.04,
            "unit": "AUD/MW",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Total cost is the addition of the power component and energy component.",
            "ai_summary": "The per-MW figure is derived from GHD's component-based 2-hour BESS capex benchmark scaled to Augusta BESS."
        },
        {
            "field_name": "capex_per_mwh_aud_estimate",
            "value_text": "Estimated capex per MWh from the default capex estimate including land/development allowance: AUD 277.3m / 540 MWh.",
            "value_numeric": 513518.52,
            "unit": "AUD/MWh",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Relative cost – Energy component $/kWh 310 290 265 245.",
            "ai_summary": "The per-MWh figure is derived from GHD's 2-hour BESS energy component benchmark plus the scaled project allowance."
        },
        {
            "field_name": "fixed_opex_annual_aud_estimate",
            "value_text": "Estimated fixed O&M including extended warranty: 270 MW * AUD 15,000/MW-year = AUD 4.05m/year.",
            "value_numeric": 4050000,
            "unit": "AUD",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "2 hours: Fixed O&M cost $/MW/year 10,000; Extended warranty $/MW 5,000.",
            "ai_summary": "GHD provides fixed O&M and annual extended-warranty allowances for a 2-hour large-scale lithium-ion BESS; these are scaled to 270 MW."
        },
        {
            "field_name": "fixed_opex_per_mw_year_aud_estimate",
            "value_text": "AUD 15,000/MW-year, comprising AUD 10,000/MW-year fixed O&M plus AUD 5,000/MW-year extended warranty.",
            "value_numeric": 15000,
            "unit": "AUD/MW-year",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Total annual O&M Cost (Fixed O&M + extended warranties) ... 2 hours ... $k 3,000.",
            "ai_summary": "For a 200 MW 2-hour BESS, GHD's total annual O&M including warranty is AUD 3.0m, equivalent to AUD 15,000/MW-year."
        },
        {
            "field_name": "variable_opex_per_mwh_aud",
            "value_text": "Variable O&M set to zero because GHD includes variable O&M in fixed O&M for large-scale lithium-ion BESS.",
            "value_numeric": 0,
            "unit": "AUD/MWh",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Variable O&M cost $/MWh ... Included in Fixed O&M cost.",
            "ai_summary": "GHD does not assign a separate variable O&M cost for the default large-scale lithium-ion BESS case."
        },
        {
            "field_name": "fuel_cost_or_contract_details",
            "value_text": "No fuel. The BESS buys/stores electricity and releases it into the grid during high-demand periods; no public fuel contract or tolling/offtake contract found.",
            "value_numeric": null,
            "unit": null,
            "source_url": "https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf",
            "source_title": "Augusta BESS Statement of Environmental Objectives",
            "publisher": "GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "Purchasing and storing energy from nearby renewable energy facilities, and then releasing the power into the grid.",
            "ai_summary": "The project description indicates electricity storage/arbitrage functionality rather than fuel consumption."
        },
        {
            "field_name": "heat_rate_gj_per_mwh",
            "value_text": "Not applicable to a battery energy storage system; no thermal fuel conversion heat rate.",
            "value_numeric": null,
            "unit": "GJ/MWh",
            "source_url": "https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf",
            "source_title": "Augusta BESS Statement of Environmental Objectives",
            "publisher": "GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "Battery Energy Storage System (BESS).",
            "ai_summary": "Because Augusta BESS is battery storage and not a thermal generator, heat rate is not applicable."
        },
        {
            "field_name": "efficiency_pct_round_trip",
            "value_text": "Default beginning-of-life round-trip efficiency for large-scale LFP BESS: 85%.",
            "value_numeric": 85,
            "unit": "%",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Round trip efficiency (Beginning of life) % 85 85 85 85.",
            "ai_summary": "GHD's default large-scale LFP BESS performance assumptions specify 85% beginning-of-life round-trip efficiency across durations."
        },
        {
            "field_name": "efficiency_degradation_note",
            "value_text": "Default round-trip efficiency degradation: 0.25 percentage points per year, reducing from 85% to 80% over 20 years.",
            "value_numeric": 0.25,
            "unit": "%/year",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Annual RTE degradation ... 0.25% ... Reducing from 85% to 80% over 20 year design life.",
            "ai_summary": "This informs operating performance assumptions but was not converted into a time-weighted lifetime efficiency."
        },
        {
            "field_name": "emissions_intensity_direct",
            "value_text": "Direct operational emissions intensity set to 0 tCO2-e/MWh for BESS discharge; charging electricity Scope 2 emissions are excluded.",
            "value_numeric": 0,
            "unit": "tCO2/MWh",
            "source_url": "https://www.epa.nsw.gov.au/Your-environment/Climate-change/Firming-infrastructure/Greenhouse-gas-emissions-intensity-of-the-NSW-electricity-grid",
            "source_title": "Greenhouse gas emissions intensity of the NSW electricity grid",
            "publisher": "NSW Environment Protection Authority",
            "published_date": "2026",
            "confidence": "medium",
            "raw_excerpt": "BESS ... don’t generate emissions, they just store electricity. ... emissions are taken to be zero.",
            "ai_summary": "Although NSW-specific, this regulatory statement supports treating BESS direct operational emissions as zero for generator-level emissions intensity."
        },
        {
            "field_name": "asset_life_years",
            "value_text": "Default economic/design life and technical/operational life: 20 years.",
            "value_numeric": 20,
            "unit": "years",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Economic life (Design life) Years 20 20 20 20; Technical life (Operational life) Years 20 20 20 20.",
            "ai_summary": "GHD's default large-scale lithium-ion BESS parameters assume a 20-year design and operational life."
        },
        {
            "field_name": "cycling_and_degradation_assumption",
            "value_text": "Default operating assumption: one full cycle per day, 7,300 maximum cycles, 1.6% annual energy storage degradation over design life.",
            "value_numeric": 7300,
            "unit": "cycles",
            "source_url": "https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf",
            "source_title": "2025 Energy Technology Cost and Technical Parameter Review",
            "publisher": "GHD for AEMO",
            "published_date": "2025",
            "confidence": "medium",
            "raw_excerpt": "Maximum number of cycles 7300 ... Based on a 20 year design life and typical operational profile of one full cycle per day.",
            "ai_summary": "These defaults help contextualise asset life and likely battery augmentation/refurbishment risk, but no Augusta-specific augmentation plan was found."
        },
        {
            "field_name": "major_refurbishment_or_closure_notes",
            "value_text": "No firm closure date or refurbishment plan found. SEO scope covers construction, operation, site closure and rehabilitation; objectives include rehabilitating adversely affected land.",
            "value_numeric": null,
            "unit": null,
            "source_url": "https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf",
            "source_title": "Augusta BESS Statement of Environmental Objectives",
            "publisher": "GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "This SEO applies to the construction, operation, site closure and rehabilitation of the Augusta BESS.",
            "ai_summary": "The SEO includes closure and rehabilitation obligations but does not disclose a closure date or major refurbishment schedule."
        },
        {
            "field_name": "technical_approval_note",
            "value_text": "Certificate of compliance for the BESS was granted by the Office of the Technical Regulator on 13 June 2024.",
            "value_numeric": null,
            "unit": null,
            "source_url": "https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf",
            "source_title": "Augusta BESS Statement of Environmental Objectives",
            "publisher": "GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining",
            "published_date": "2025",
            "confidence": "high",
            "raw_excerpt": "A certificate of compliance for the BESS was granted ... on the 13th of June 2024.",
            "ai_summary": "This is an approvals milestone, not evidence of commercial operation or construction completion."
        }
    ],
    "warnings": [
        "No reported project-specific construction cost/capex was found; capex is a default estimate based on AEMO/GHD 2025 2-hour standalone LFP BESS cost parameters.",
        "No reported project-specific fixed O&M, variable O&M, warranty, EPC, LTSA, augmentation, tolling, offtake, or financing agreement was found.",
        "Augusta BESS has no DUID in the supplied data and was not identified as operational; AEMO listed it as publicly announced in October 2025.",
        "Charging electricity cost and merchant revenue assumptions are not included because no public contract or operating strategy price assumptions were found.",
        "Emissions intensity is direct operational only. Scope 2 emissions from charging electricity and lifecycle embodied emissions are excluded.",
        "Capex estimate uses nominal AUD 2025 default assumptions and is not escalated to any future financial close or construction year."
    ]
}
Full API payload (incl. web search)
{
    "meta": {
        "model": "gpt-5.5",
        "reasoning_effort": "medium",
        "response_id": "resp_028e890cbf2540fd006a209b00a6c48197b70dcb1dfded716e",
        "fetched_at": "2026-06-04T07:24:03+10:00"
    },
    "raw_text": "{\"generator_identity\":{\"site_name\":\"Augusta BESS\",\"duid\":null,\"owner\":\"Augusta BESS Pty Ltd\",\"region\":\"SA1 / South Australia (NEM)\",\"technology_type\":\"Storage - Battery\",\"fuel_type\":\"Other - Other\"},\"financial_profile\":{\"generator_type_normalised\":\"utility_scale_lithium_ion_bess_2_hour\",\"capex_total_aud\":277300000,\"capex_year\":2025,\"capex_basis\":\"default\",\"capex_per_mw_aud\":1027037.04,\"capex_per_mwh_aud\":513518.52,\"fixed_opex_annual_aud\":4050000,\"fixed_opex_per_mw_year_aud\":15000,\"variable_opex_per_mwh_aud\":0,\"fuel_cost_per_gj_aud\":null,\"fuel_contract_notes\":\"Not applicable as a BESS has no fuel supply. Project documents describe the asset as purchasing/storing energy and releasing it to the grid; electricity charging cost is a market operating cost, not a fuel contract. No tolling, offtake, battery services agreement, or energy charging contract was found in public sources.\",\"heat_rate_gj_per_mwh\":null,\"efficiency_pct\":85,\"emissions_intensity_tco2_mwh\":0,\"asset_life_years\":20,\"discount_rate_pct\":null,\"source_confidence\":\"medium\",\"data_status\":\"ai_estimated\",\"notes\":\"No generator-specific capex, O&M contract, battery supply/EPC price, financing close, offtake/tolling agreement, or commercial operation date was found. Augusta BESS appears to remain in development/public consultation rather than committed/operational: AEMO lists it as a publicly announced storage development, and SA DEM lists its HRE Act consultation as closed on 10 March 2026. Capex is therefore a technology-default estimate, scaled to 270 MW / 540 MWh using GHD's 2025 AEMO draft cost parameters for a 2-hour standalone LFP BESS with dedicated grid connection: AUD 410/kW power component + AUD 290/kWh energy component + AUD 10m land/development allowance. The estimate excludes any site-specific network augmentation, financing costs, IDC, owner contingency, taxes, or project-specific EPC/battery procurement differences unless included in the generic benchmark. Fixed O&M uses GHD's 2-hour BESS fixed O&M plus extended warranty allowance: AUD 10,000/MW-year + AUD 5,000/MW-year = AUD 15,000/MW-year. Variable O&M is set to 0 because GHD includes variable O&M in fixed O&M. Emissions intensity is direct operational emissions only; lifecycle/embodied emissions and Scope 2 emissions associated with charging energy are not included. No firm closure date or refurbishment plan was found; closure/rehabilitation is covered in the Statement of Environmental Objectives, and the default economic/technical life is 20 years.\"},\"sources\":[{\"field_name\":\"site_capacity_and_location\",\"value_text\":\"270 MW / 540 MWh BESS at Lot 15, Port Paterson Road, Port Paterson, South Australia; connected to Davenport Substation/ElectraNet network.\",\"value_numeric\":270,\"unit\":\"MW\",\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Proposed Augusta BESS is comprised of a 270 MW / 540 MWh Battery Energy Storage System.\",\"ai_summary\":\"The SEO verifies the project identity, scale, location and grid connection route for Augusta BESS.\"},{\"field_name\":\"storage_capacity\",\"value_text\":\"Storage capacity 540 MWh.\",\"value_numeric\":540,\"unit\":\"MWh\",\"source_url\":\"https://www.aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/sa_advisory/2025/2025-south-australian-electricity-report.pdf\",\"source_title\":\"2025 South Australian Electricity Report\",\"publisher\":\"AEMO\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Storage developments Augusta BESS 270 540.\",\"ai_summary\":\"AEMO lists Augusta BESS among publicly announced South Australian storage developments with 270 MW nameplate capacity and 540 MWh storage capacity.\"},{\"field_name\":\"development_status\",\"value_text\":\"Publicly announced; not identified as committed or anticipated in AEMO's October 2025 list.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/sa_advisory/2025/2025-south-australian-electricity-report.pdf\",\"source_title\":\"2025 South Australian Electricity Report\",\"publisher\":\"AEMO\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Publicly announced generation and storage developments with capacity of ≥200 MW, October 2025.\",\"ai_summary\":\"AEMO classifies Augusta BESS as a publicly announced storage development rather than a committed project.\"},{\"field_name\":\"approvals_consultation_status\",\"value_text\":\"SA HRE Act public consultation for Augusta BESS closed on 10 March 2026.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/industry/hydrogen-and-renewable-energy/hydrogen-and-renewable-energy-act/public-consultations\",\"source_title\":\"Public consultations: Hydrogen and Renewable Energy Act\",\"publisher\":\"Government of South Australia Department for Energy and Mining\",\"published_date\":\"2026-05-29\",\"confidence\":\"high\",\"raw_excerpt\":\"Augusta Battery Energy Storage System (BESS) Augusta BESS Pty Ltd ... Date closed 10 March 2026.\",\"ai_summary\":\"The SA Government consultation page confirms the proponent, location and consultation close date for Augusta BESS.\"},{\"field_name\":\"owner_parent\",\"value_text\":\"Augusta BESS Pty Ltd is a subsidiary of Trina Solar Energy Development Pte Ltd.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://augustabess.com.au/wp-content/uploads/2025/04/Augusta-BESS-Newsletter.pdf\",\"source_title\":\"Augusta BESS Newsletter\",\"publisher\":\"Augusta BESS Pty Ltd\",\"published_date\":\"2025-03-17\",\"confidence\":\"high\",\"raw_excerpt\":\"Augusta BESS Pty Ltd is a subsidiary of Trina Solar Energy Development Pte Ltd.\",\"ai_summary\":\"The project newsletter identifies the project company and its parent relationship to Trina Solar.\"},{\"field_name\":\"project_scope_infrastructure\",\"value_text\":\"Primary infrastructure includes up to 288 LFP BESS containers, 96 inverter stations, transformers, 275 kV step-up connection, cabling, telecommunications, site office, maintenance building, fencing, access tracks and road entrance improvements.\",\"value_numeric\":288,\"unit\":\"containers\",\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Up to 288 BESS containers with lithium iron phosphate battery cells.\",\"ai_summary\":\"The SEO provides a preliminary equipment scope and confirms the battery chemistry as lithium iron phosphate.\"},{\"field_name\":\"capex_total_aud_estimate\",\"value_text\":\"Default estimated all-in development capex: AUD 277.3m = 270,000 kW * AUD 410/kW + 540,000 kWh * AUD 290/kWh + AUD 10m land/development allowance.\",\"value_numeric\":277300000,\"unit\":\"AUD\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"2 hours: power component $/kW 410; energy component $/kWh 290; cost of land and development $10,000,000.\",\"ai_summary\":\"GHD's 2025 AEMO draft benchmark for a 2-hour large-scale standalone LFP BESS was scaled from 200 MW to Augusta BESS's 270 MW / 540 MWh size.\"},{\"field_name\":\"capex_per_mw_aud_estimate\",\"value_text\":\"Estimated capex per MW from the default capex estimate including land/development allowance: AUD 277.3m / 270 MW.\",\"value_numeric\":1027037.04,\"unit\":\"AUD/MW\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Total cost is the addition of the power component and energy component.\",\"ai_summary\":\"The per-MW figure is derived from GHD's component-based 2-hour BESS capex benchmark scaled to Augusta BESS.\"},{\"field_name\":\"capex_per_mwh_aud_estimate\",\"value_text\":\"Estimated capex per MWh from the default capex estimate including land/development allowance: AUD 277.3m / 540 MWh.\",\"value_numeric\":513518.52,\"unit\":\"AUD/MWh\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Relative cost – Energy component $/kWh 310 290 265 245.\",\"ai_summary\":\"The per-MWh figure is derived from GHD's 2-hour BESS energy component benchmark plus the scaled project allowance.\"},{\"field_name\":\"fixed_opex_annual_aud_estimate\",\"value_text\":\"Estimated fixed O&M including extended warranty: 270 MW * AUD 15,000/MW-year = AUD 4.05m/year.\",\"value_numeric\":4050000,\"unit\":\"AUD\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"2 hours: Fixed O&M cost $/MW/year 10,000; Extended warranty $/MW 5,000.\",\"ai_summary\":\"GHD provides fixed O&M and annual extended-warranty allowances for a 2-hour large-scale lithium-ion BESS; these are scaled to 270 MW.\"},{\"field_name\":\"fixed_opex_per_mw_year_aud_estimate\",\"value_text\":\"AUD 15,000/MW-year, comprising AUD 10,000/MW-year fixed O&M plus AUD 5,000/MW-year extended warranty.\",\"value_numeric\":15000,\"unit\":\"AUD/MW-year\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Total annual O&M Cost (Fixed O&M + extended warranties) ... 2 hours ... $k 3,000.\",\"ai_summary\":\"For a 200 MW 2-hour BESS, GHD's total annual O&M including warranty is AUD 3.0m, equivalent to AUD 15,000/MW-year.\"},{\"field_name\":\"variable_opex_per_mwh_aud\",\"value_text\":\"Variable O&M set to zero because GHD includes variable O&M in fixed O&M for large-scale lithium-ion BESS.\",\"value_numeric\":0,\"unit\":\"AUD/MWh\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Variable O&M cost $/MWh ... Included in Fixed O&M cost.\",\"ai_summary\":\"GHD does not assign a separate variable O&M cost for the default large-scale lithium-ion BESS case.\"},{\"field_name\":\"fuel_cost_or_contract_details\",\"value_text\":\"No fuel. The BESS buys/stores electricity and releases it into the grid during high-demand periods; no public fuel contract or tolling/offtake contract found.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Purchasing and storing energy from nearby renewable energy facilities, and then releasing the power into the grid.\",\"ai_summary\":\"The project description indicates electricity storage/arbitrage functionality rather than fuel consumption.\"},{\"field_name\":\"heat_rate_gj_per_mwh\",\"value_text\":\"Not applicable to a battery energy storage system; no thermal fuel conversion heat rate.\",\"value_numeric\":null,\"unit\":\"GJ/MWh\",\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Battery Energy Storage System (BESS).\",\"ai_summary\":\"Because Augusta BESS is battery storage and not a thermal generator, heat rate is not applicable.\"},{\"field_name\":\"efficiency_pct_round_trip\",\"value_text\":\"Default beginning-of-life round-trip efficiency for large-scale LFP BESS: 85%.\",\"value_numeric\":85,\"unit\":\"%\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Round trip efficiency (Beginning of life) % 85 85 85 85.\",\"ai_summary\":\"GHD's default large-scale LFP BESS performance assumptions specify 85% beginning-of-life round-trip efficiency across durations.\"},{\"field_name\":\"efficiency_degradation_note\",\"value_text\":\"Default round-trip efficiency degradation: 0.25 percentage points per year, reducing from 85% to 80% over 20 years.\",\"value_numeric\":0.25,\"unit\":\"%/year\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Annual RTE degradation ... 0.25% ... Reducing from 85% to 80% over 20 year design life.\",\"ai_summary\":\"This informs operating performance assumptions but was not converted into a time-weighted lifetime efficiency.\"},{\"field_name\":\"emissions_intensity_direct\",\"value_text\":\"Direct operational emissions intensity set to 0 tCO2-e/MWh for BESS discharge; charging electricity Scope 2 emissions are excluded.\",\"value_numeric\":0,\"unit\":\"tCO2/MWh\",\"source_url\":\"https://www.epa.nsw.gov.au/Your-environment/Climate-change/Firming-infrastructure/Greenhouse-gas-emissions-intensity-of-the-NSW-electricity-grid\",\"source_title\":\"Greenhouse gas emissions intensity of the NSW electricity grid\",\"publisher\":\"NSW Environment Protection Authority\",\"published_date\":\"2026\",\"confidence\":\"medium\",\"raw_excerpt\":\"BESS ... don’t generate emissions, they just store electricity. ... emissions are taken to be zero.\",\"ai_summary\":\"Although NSW-specific, this regulatory statement supports treating BESS direct operational emissions as zero for generator-level emissions intensity.\"},{\"field_name\":\"asset_life_years\",\"value_text\":\"Default economic/design life and technical/operational life: 20 years.\",\"value_numeric\":20,\"unit\":\"years\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Economic life (Design life) Years 20 20 20 20; Technical life (Operational life) Years 20 20 20 20.\",\"ai_summary\":\"GHD's default large-scale lithium-ion BESS parameters assume a 20-year design and operational life.\"},{\"field_name\":\"cycling_and_degradation_assumption\",\"value_text\":\"Default operating assumption: one full cycle per day, 7,300 maximum cycles, 1.6% annual energy storage degradation over design life.\",\"value_numeric\":7300,\"unit\":\"cycles\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Maximum number of cycles 7300 ... Based on a 20 year design life and typical operational profile of one full cycle per day.\",\"ai_summary\":\"These defaults help contextualise asset life and likely battery augmentation/refurbishment risk, but no Augusta-specific augmentation plan was found.\"},{\"field_name\":\"major_refurbishment_or_closure_notes\",\"value_text\":\"No firm closure date or refurbishment plan found. SEO scope covers construction, operation, site closure and rehabilitation; objectives include rehabilitating adversely affected land.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"This SEO applies to the construction, operation, site closure and rehabilitation of the Augusta BESS.\",\"ai_summary\":\"The SEO includes closure and rehabilitation obligations but does not disclose a closure date or major refurbishment schedule.\"},{\"field_name\":\"technical_approval_note\",\"value_text\":\"Certificate of compliance for the BESS was granted by the Office of the Technical Regulator on 13 June 2024.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"A certificate of compliance for the BESS was granted ... on the 13th of June 2024.\",\"ai_summary\":\"This is an approvals milestone, not evidence of commercial operation or construction completion.\"}],\"warnings\":[\"No reported project-specific construction cost/capex was found; capex is a default estimate based on AEMO/GHD 2025 2-hour standalone LFP BESS cost parameters.\",\"No reported project-specific fixed O&M, variable O&M, warranty, EPC, LTSA, augmentation, tolling, offtake, or financing agreement was found.\",\"Augusta BESS has no DUID in the supplied data and was not identified as operational; AEMO listed it as publicly announced in October 2025.\",\"Charging electricity cost and merchant revenue assumptions are not included because no public contract or operating strategy price assumptions were found.\",\"Emissions intensity is direct operational only. Scope 2 emissions from charging electricity and lifecycle embodied emissions are excluded.\",\"Capex estimate uses nominal AUD 2025 default assumptions and is not escalated to any future financial close or construction year.\"]}",
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                        "text": "{\"generator_identity\":{\"site_name\":\"Augusta BESS\",\"duid\":null,\"owner\":\"Augusta BESS Pty Ltd\",\"region\":\"SA1 / South Australia (NEM)\",\"technology_type\":\"Storage - Battery\",\"fuel_type\":\"Other - Other\"},\"financial_profile\":{\"generator_type_normalised\":\"utility_scale_lithium_ion_bess_2_hour\",\"capex_total_aud\":277300000,\"capex_year\":2025,\"capex_basis\":\"default\",\"capex_per_mw_aud\":1027037.04,\"capex_per_mwh_aud\":513518.52,\"fixed_opex_annual_aud\":4050000,\"fixed_opex_per_mw_year_aud\":15000,\"variable_opex_per_mwh_aud\":0,\"fuel_cost_per_gj_aud\":null,\"fuel_contract_notes\":\"Not applicable as a BESS has no fuel supply. Project documents describe the asset as purchasing/storing energy and releasing it to the grid; electricity charging cost is a market operating cost, not a fuel contract. No tolling, offtake, battery services agreement, or energy charging contract was found in public sources.\",\"heat_rate_gj_per_mwh\":null,\"efficiency_pct\":85,\"emissions_intensity_tco2_mwh\":0,\"asset_life_years\":20,\"discount_rate_pct\":null,\"source_confidence\":\"medium\",\"data_status\":\"ai_estimated\",\"notes\":\"No generator-specific capex, O&M contract, battery supply/EPC price, financing close, offtake/tolling agreement, or commercial operation date was found. Augusta BESS appears to remain in development/public consultation rather than committed/operational: AEMO lists it as a publicly announced storage development, and SA DEM lists its HRE Act consultation as closed on 10 March 2026. Capex is therefore a technology-default estimate, scaled to 270 MW / 540 MWh using GHD's 2025 AEMO draft cost parameters for a 2-hour standalone LFP BESS with dedicated grid connection: AUD 410/kW power component + AUD 290/kWh energy component + AUD 10m land/development allowance. The estimate excludes any site-specific network augmentation, financing costs, IDC, owner contingency, taxes, or project-specific EPC/battery procurement differences unless included in the generic benchmark. Fixed O&M uses GHD's 2-hour BESS fixed O&M plus extended warranty allowance: AUD 10,000/MW-year + AUD 5,000/MW-year = AUD 15,000/MW-year. Variable O&M is set to 0 because GHD includes variable O&M in fixed O&M. Emissions intensity is direct operational emissions only; lifecycle/embodied emissions and Scope 2 emissions associated with charging energy are not included. No firm closure date or refurbishment plan was found; closure/rehabilitation is covered in the Statement of Environmental Objectives, and the default economic/technical life is 20 years.\"},\"sources\":[{\"field_name\":\"site_capacity_and_location\",\"value_text\":\"270 MW / 540 MWh BESS at Lot 15, Port Paterson Road, Port Paterson, South Australia; connected to Davenport Substation/ElectraNet network.\",\"value_numeric\":270,\"unit\":\"MW\",\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Proposed Augusta BESS is comprised of a 270 MW / 540 MWh Battery Energy Storage System.\",\"ai_summary\":\"The SEO verifies the project identity, scale, location and grid connection route for Augusta BESS.\"},{\"field_name\":\"storage_capacity\",\"value_text\":\"Storage capacity 540 MWh.\",\"value_numeric\":540,\"unit\":\"MWh\",\"source_url\":\"https://www.aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/sa_advisory/2025/2025-south-australian-electricity-report.pdf\",\"source_title\":\"2025 South Australian Electricity Report\",\"publisher\":\"AEMO\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Storage developments Augusta BESS 270 540.\",\"ai_summary\":\"AEMO lists Augusta BESS among publicly announced South Australian storage developments with 270 MW nameplate capacity and 540 MWh storage capacity.\"},{\"field_name\":\"development_status\",\"value_text\":\"Publicly announced; not identified as committed or anticipated in AEMO's October 2025 list.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/sa_advisory/2025/2025-south-australian-electricity-report.pdf\",\"source_title\":\"2025 South Australian Electricity Report\",\"publisher\":\"AEMO\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Publicly announced generation and storage developments with capacity of ≥200 MW, October 2025.\",\"ai_summary\":\"AEMO classifies Augusta BESS as a publicly announced storage development rather than a committed project.\"},{\"field_name\":\"approvals_consultation_status\",\"value_text\":\"SA HRE Act public consultation for Augusta BESS closed on 10 March 2026.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/industry/hydrogen-and-renewable-energy/hydrogen-and-renewable-energy-act/public-consultations\",\"source_title\":\"Public consultations: Hydrogen and Renewable Energy Act\",\"publisher\":\"Government of South Australia Department for Energy and Mining\",\"published_date\":\"2026-05-29\",\"confidence\":\"high\",\"raw_excerpt\":\"Augusta Battery Energy Storage System (BESS) Augusta BESS Pty Ltd ... Date closed 10 March 2026.\",\"ai_summary\":\"The SA Government consultation page confirms the proponent, location and consultation close date for Augusta BESS.\"},{\"field_name\":\"owner_parent\",\"value_text\":\"Augusta BESS Pty Ltd is a subsidiary of Trina Solar Energy Development Pte Ltd.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://augustabess.com.au/wp-content/uploads/2025/04/Augusta-BESS-Newsletter.pdf\",\"source_title\":\"Augusta BESS Newsletter\",\"publisher\":\"Augusta BESS Pty Ltd\",\"published_date\":\"2025-03-17\",\"confidence\":\"high\",\"raw_excerpt\":\"Augusta BESS Pty Ltd is a subsidiary of Trina Solar Energy Development Pte Ltd.\",\"ai_summary\":\"The project newsletter identifies the project company and its parent relationship to Trina Solar.\"},{\"field_name\":\"project_scope_infrastructure\",\"value_text\":\"Primary infrastructure includes up to 288 LFP BESS containers, 96 inverter stations, transformers, 275 kV step-up connection, cabling, telecommunications, site office, maintenance building, fencing, access tracks and road entrance improvements.\",\"value_numeric\":288,\"unit\":\"containers\",\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Up to 288 BESS containers with lithium iron phosphate battery cells.\",\"ai_summary\":\"The SEO provides a preliminary equipment scope and confirms the battery chemistry as lithium iron phosphate.\"},{\"field_name\":\"capex_total_aud_estimate\",\"value_text\":\"Default estimated all-in development capex: AUD 277.3m = 270,000 kW * AUD 410/kW + 540,000 kWh * AUD 290/kWh + AUD 10m land/development allowance.\",\"value_numeric\":277300000,\"unit\":\"AUD\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"2 hours: power component $/kW 410; energy component $/kWh 290; cost of land and development $10,000,000.\",\"ai_summary\":\"GHD's 2025 AEMO draft benchmark for a 2-hour large-scale standalone LFP BESS was scaled from 200 MW to Augusta BESS's 270 MW / 540 MWh size.\"},{\"field_name\":\"capex_per_mw_aud_estimate\",\"value_text\":\"Estimated capex per MW from the default capex estimate including land/development allowance: AUD 277.3m / 270 MW.\",\"value_numeric\":1027037.04,\"unit\":\"AUD/MW\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Total cost is the addition of the power component and energy component.\",\"ai_summary\":\"The per-MW figure is derived from GHD's component-based 2-hour BESS capex benchmark scaled to Augusta BESS.\"},{\"field_name\":\"capex_per_mwh_aud_estimate\",\"value_text\":\"Estimated capex per MWh from the default capex estimate including land/development allowance: AUD 277.3m / 540 MWh.\",\"value_numeric\":513518.52,\"unit\":\"AUD/MWh\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Relative cost – Energy component $/kWh 310 290 265 245.\",\"ai_summary\":\"The per-MWh figure is derived from GHD's 2-hour BESS energy component benchmark plus the scaled project allowance.\"},{\"field_name\":\"fixed_opex_annual_aud_estimate\",\"value_text\":\"Estimated fixed O&M including extended warranty: 270 MW * AUD 15,000/MW-year = AUD 4.05m/year.\",\"value_numeric\":4050000,\"unit\":\"AUD\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"2 hours: Fixed O&M cost $/MW/year 10,000; Extended warranty $/MW 5,000.\",\"ai_summary\":\"GHD provides fixed O&M and annual extended-warranty allowances for a 2-hour large-scale lithium-ion BESS; these are scaled to 270 MW.\"},{\"field_name\":\"fixed_opex_per_mw_year_aud_estimate\",\"value_text\":\"AUD 15,000/MW-year, comprising AUD 10,000/MW-year fixed O&M plus AUD 5,000/MW-year extended warranty.\",\"value_numeric\":15000,\"unit\":\"AUD/MW-year\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Total annual O&M Cost (Fixed O&M + extended warranties) ... 2 hours ... $k 3,000.\",\"ai_summary\":\"For a 200 MW 2-hour BESS, GHD's total annual O&M including warranty is AUD 3.0m, equivalent to AUD 15,000/MW-year.\"},{\"field_name\":\"variable_opex_per_mwh_aud\",\"value_text\":\"Variable O&M set to zero because GHD includes variable O&M in fixed O&M for large-scale lithium-ion BESS.\",\"value_numeric\":0,\"unit\":\"AUD/MWh\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Variable O&M cost $/MWh ... Included in Fixed O&M cost.\",\"ai_summary\":\"GHD does not assign a separate variable O&M cost for the default large-scale lithium-ion BESS case.\"},{\"field_name\":\"fuel_cost_or_contract_details\",\"value_text\":\"No fuel. The BESS buys/stores electricity and releases it into the grid during high-demand periods; no public fuel contract or tolling/offtake contract found.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Purchasing and storing energy from nearby renewable energy facilities, and then releasing the power into the grid.\",\"ai_summary\":\"The project description indicates electricity storage/arbitrage functionality rather than fuel consumption.\"},{\"field_name\":\"heat_rate_gj_per_mwh\",\"value_text\":\"Not applicable to a battery energy storage system; no thermal fuel conversion heat rate.\",\"value_numeric\":null,\"unit\":\"GJ/MWh\",\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"Battery Energy Storage System (BESS).\",\"ai_summary\":\"Because Augusta BESS is battery storage and not a thermal generator, heat rate is not applicable.\"},{\"field_name\":\"efficiency_pct_round_trip\",\"value_text\":\"Default beginning-of-life round-trip efficiency for large-scale LFP BESS: 85%.\",\"value_numeric\":85,\"unit\":\"%\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Round trip efficiency (Beginning of life) % 85 85 85 85.\",\"ai_summary\":\"GHD's default large-scale LFP BESS performance assumptions specify 85% beginning-of-life round-trip efficiency across durations.\"},{\"field_name\":\"efficiency_degradation_note\",\"value_text\":\"Default round-trip efficiency degradation: 0.25 percentage points per year, reducing from 85% to 80% over 20 years.\",\"value_numeric\":0.25,\"unit\":\"%/year\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Annual RTE degradation ... 0.25% ... Reducing from 85% to 80% over 20 year design life.\",\"ai_summary\":\"This informs operating performance assumptions but was not converted into a time-weighted lifetime efficiency.\"},{\"field_name\":\"emissions_intensity_direct\",\"value_text\":\"Direct operational emissions intensity set to 0 tCO2-e/MWh for BESS discharge; charging electricity Scope 2 emissions are excluded.\",\"value_numeric\":0,\"unit\":\"tCO2/MWh\",\"source_url\":\"https://www.epa.nsw.gov.au/Your-environment/Climate-change/Firming-infrastructure/Greenhouse-gas-emissions-intensity-of-the-NSW-electricity-grid\",\"source_title\":\"Greenhouse gas emissions intensity of the NSW electricity grid\",\"publisher\":\"NSW Environment Protection Authority\",\"published_date\":\"2026\",\"confidence\":\"medium\",\"raw_excerpt\":\"BESS ... don’t generate emissions, they just store electricity. ... emissions are taken to be zero.\",\"ai_summary\":\"Although NSW-specific, this regulatory statement supports treating BESS direct operational emissions as zero for generator-level emissions intensity.\"},{\"field_name\":\"asset_life_years\",\"value_text\":\"Default economic/design life and technical/operational life: 20 years.\",\"value_numeric\":20,\"unit\":\"years\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Economic life (Design life) Years 20 20 20 20; Technical life (Operational life) Years 20 20 20 20.\",\"ai_summary\":\"GHD's default large-scale lithium-ion BESS parameters assume a 20-year design and operational life.\"},{\"field_name\":\"cycling_and_degradation_assumption\",\"value_text\":\"Default operating assumption: one full cycle per day, 7,300 maximum cycles, 1.6% annual energy storage degradation over design life.\",\"value_numeric\":7300,\"unit\":\"cycles\",\"source_url\":\"https://www.aemo.com.au/-/media/files/stakeholder_consultation/consultations/nem-consultations/2025/draft-2026-fau/ghd-2025-energy-technology-cost-and-technical-parameter-report.pdf\",\"source_title\":\"2025 Energy Technology Cost and Technical Parameter Review\",\"publisher\":\"GHD for AEMO\",\"published_date\":\"2025\",\"confidence\":\"medium\",\"raw_excerpt\":\"Maximum number of cycles 7300 ... Based on a 20 year design life and typical operational profile of one full cycle per day.\",\"ai_summary\":\"These defaults help contextualise asset life and likely battery augmentation/refurbishment risk, but no Augusta-specific augmentation plan was found.\"},{\"field_name\":\"major_refurbishment_or_closure_notes\",\"value_text\":\"No firm closure date or refurbishment plan found. SEO scope covers construction, operation, site closure and rehabilitation; objectives include rehabilitating adversely affected land.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"This SEO applies to the construction, operation, site closure and rehabilitation of the Augusta BESS.\",\"ai_summary\":\"The SEO includes closure and rehabilitation obligations but does not disclose a closure date or major refurbishment schedule.\"},{\"field_name\":\"technical_approval_note\",\"value_text\":\"Certificate of compliance for the BESS was granted by the Office of the Technical Regulator on 13 June 2024.\",\"value_numeric\":null,\"unit\":null,\"source_url\":\"https://www.energymining.sa.gov.au/__data/assets/pdf_file/0010/1224676/Augusta-BESS-SEO.pdf\",\"source_title\":\"Augusta BESS Statement of Environmental Objectives\",\"publisher\":\"GHD for Augusta BESS Pty Ltd / Government of South Australia Department for Energy and Mining\",\"published_date\":\"2025\",\"confidence\":\"high\",\"raw_excerpt\":\"A certificate of compliance for the BESS was granted ... on the 13th of June 2024.\",\"ai_summary\":\"This is an approvals milestone, not evidence of commercial operation or construction completion.\"}],\"warnings\":[\"No reported project-specific construction cost/capex was found; capex is a default estimate based on AEMO/GHD 2025 2-hour standalone LFP BESS cost parameters.\",\"No reported project-specific fixed O&M, variable O&M, warranty, EPC, LTSA, augmentation, tolling, offtake, or financing agreement was found.\",\"Augusta BESS has no DUID in the supplied data and was not identified as operational; AEMO listed it as publicly announced in October 2025.\",\"Charging electricity cost and merchant revenue assumptions are not included because no public contract or operating strategy price assumptions were found.\",\"Emissions intensity is direct operational only. Scope 2 emissions from charging electricity and lifecycle embodied emissions are excluded.\",\"Capex estimate uses nominal AUD 2025 default assumptions and is not escalated to any future financial close or construction year.\"]}"
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    }
}

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