{
  "slug": "wa-benchmark-technology-2026",
  "title": "The SWIS Capacity Benchmark Is Proposed to Go Back to a Gas Turbine",
  "url": "https://solaranalytica.com/wa-benchmark-technology-2026",
  "summary": "The Coordinator of Energy's draft 2026 Benchmark Technology Review proposes an E-Class simple cycle gas turbine as the reference technology for both Peak and Flexible capacity prices, replacing the 200 MW six-hour battery. The trigger was a storage duration requirement rising from six to seven hours, and the shortlist changed because an emissions threshold assumed in 2025 was not applied. Consultation closes 7 October 2026.",
  "license": "Free to use with attribution to Solar Analytica (solaranalytica.com). Underlying figures are named to their public sources below.",
  "csv": "https://solaranalytica.com/reports/wa-benchmark-technology-2026/data.csv",
  "datePublished": "2026-09-11",
  "lastReviewed": "2026-09-11",
  "sources": [
    {
      "title": "Coordinator of Energy, Department of Energy and Economic Diversification, 2026 Benchmark Technology Review: Draft Determination for consultation, 9 September 2026",
      "url": "https://www.wa.gov.au/government/document-collections/2026-benchmark-technology-review"
    },
    {
      "title": "Department of Energy and Economic Diversification, 2026 Benchmark Technology Review: Configurations Workbook (XLSX)",
      "url": "https://www.wa.gov.au/system/files/2026-09/2026_benchmark_technology_review_-_configuration_workbook.xlsx"
    },
    {
      "title": "Economic Regulation Authority, 2026 Benchmark Reserve Capacity Prices for the 2028/29 capacity year: Final determination, 13 March 2026",
      "url": "https://www.erawa.com.au/sites/default/files/2026-benchmark-reserve-capacity-prices-2028-29-capacity-year-final-determination.PDF"
    },
    {
      "title": "AEMO, 2026 Wholesale Electricity Market Electricity Statement of Opportunities",
      "url": "https://www.aemo.com.au/energy-systems/electricity/wholesale-electricity-market-wem/wem-forecasting-and-planning/wem-electricity-statement-of-opportunities-wem-esoo"
    }
  ],
  "figures": [
    {
      "id": "proxy-brcp-by-configuration",
      "title": "Proxy annual fixed cost per MW by shortlisted configuration, Peak service",
      "unit": "$/MW/yr, $2029",
      "provenance": {
        "dataSource": "Coordinator of Energy, 2026 Benchmark Technology Review Configurations Workbook, Calculations sheet, row Proxy BRCP - Peak, read 11 September 2026",
        "dataType": "Published estimate",
        "scope": "Shortlisted configurations plus the incumbent six-hour battery, dual fuel variants for thermal plant",
        "statistic": "Annualised capital and fixed operating cost per MW of credited capacity"
      },
      "caption": "Values as published in the workbook. The six-hour battery reflects the 6/7 capacity factor the paper applies in footnote 28; the eight-hour battery reflects 7/8.",
      "series": [
        {
          "label": "E-Class SCGT, SGT5-2000E",
          "value": 344893
        },
        {
          "label": "E-Class SCGT, GT13E2",
          "value": 351367
        },
        {
          "label": "E-Class CCGT, GT13E2",
          "value": 454020
        },
        {
          "label": "7-hour BESS",
          "value": 464536
        },
        {
          "label": "6-hour BESS, 6/7 credited",
          "value": 492355
        },
        {
          "label": "Aero SCGT, LMS100",
          "value": 505978
        },
        {
          "label": "Recip engine, Wartsila",
          "value": 508247
        },
        {
          "label": "Recip engine, Jenbacher",
          "value": 520585
        },
        {
          "label": "Aero SCGT, LM2500",
          "value": 523154
        },
        {
          "label": "8-hour BESS, 7/8 credited",
          "value": 579729
        },
        {
          "label": "Aero SCGT, LM6000",
          "value": 606441
        }
      ]
    }
  ]
}