{
  "reviewedAt": "2026-09-18",
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    "retirement_convention": "Each unit contributes its historical mean through its announced final operating year; full replacement begins in the following year. Partial final-year effects are excluded.",
    "annual": [
      {
        "year": 2032,
        "historical_output_to_replace_twh": 0
      },
      {
        "year": 2033,
        "historical_output_to_replace_twh": 2.8074
      },
      {
        "year": 2034,
        "historical_output_to_replace_twh": 5.5582
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      {
        "year": 2035,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2036,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2037,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2038,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2039,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2040,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2041,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2042,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2043,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2044,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2045,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2046,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2047,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2048,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2049,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2050,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2051,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2052,
        "historical_output_to_replace_twh": 5.5582
      },
      {
        "year": 2053,
        "historical_output_to_replace_twh": 5.5582
      }
    ],
    "timelines": [
      {
        "label": "Favourable case",
        "commercial_year": 2042,
        "cumulative_twh": 47.273,
        "claim_id": "bridge-energy-2042"
      },
      {
        "label": "Planning illustration",
        "commercial_year": 2047,
        "cumulative_twh": 75.06400000000001,
        "claim_id": "bridge-energy-2047"
      },
      {
        "label": "Delayed case",
        "commercial_year": 2053,
        "cumulative_twh": 108.4132,
        "claim_id": "bridge-energy-2053"
      }
    ],
    "mean_twh": 5.5582
  },
  "reserve": {
    "case_id": "n8-pv26-2012-battery_none",
    "period": "October 2011–September 2012 weather, hypothetical 2050 demand and fleet",
    "nuclear_gw": 8.8,
    "solar_gwp": 26,
    "unserved_gwh": 216.685430632421,
    "peak_gw": 5.2619034901271124,
    "shortage_hours": 80,
    "rows": [
      {
        "available_gw": 0,
        "supplied_gwh": 0,
        "remaining_gwh": 216.685430632421,
        "shortage_hours": 80,
        "residual_peak_gw": 5.2619034901271124,
        "output_equivalent_hours": null
      },
      {
        "available_gw": 1,
        "supplied_gwh": 75.19730433983042,
        "remaining_gwh": 141.48812629259058,
        "shortage_hours": 71,
        "residual_peak_gw": 4.2619034901271124,
        "output_equivalent_hours": 75.19730433983042
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      {
        "available_gw": 2,
        "supplied_gwh": 138.2491016081927,
        "remaining_gwh": 78.43632902422831,
        "shortage_hours": 52,
        "residual_peak_gw": 3.2619034901271124,
        "output_equivalent_hours": 69.12455080409634
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      {
        "available_gw": 4,
        "supplied_gwh": 204.76457429234262,
        "remaining_gwh": 11.920856340078387,
        "shortage_hours": 22,
        "residual_peak_gw": 1.2619034901271124,
        "output_equivalent_hours": 51.191143573085654
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      {
        "available_gw": 5.27,
        "supplied_gwh": 216.685430632421,
        "remaining_gwh": 0,
        "shortage_hours": 0,
        "residual_peak_gw": 0,
        "output_equivalent_hours": 41.116780006152
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    ],
    "limitation": "Post-dispatch overlay on one hypothetical 2050 case using 2011/12 weather. All reserve power is assumed available in each shortage hour, with unlimited activation energy. Existing hydro dispatch is held fixed. No start/ramp constraints, reserve outages, fuel logistics, internal grid or redispatch; no statistical reliability or optimal reserve-size claim.",
    "base_assumptions": "One 1.1 GW nuclear unit unavailable for 90 winter days; scheduled maintenance and 98% other availability; no imports or batteries; finite pumped stores; pooled natural hydro; perfect year-ahead foresight; no internal grid. The hypothetical eight-unit fleet has no demonstrated delivery plan."
  },
  "financing": {
    "contract_chf_million": 1880,
    "contingency_chf_million": 300,
    "main_credit_chf_million": 2180,
    "preparation_credit_chf_million": 100,
    "monthey_credit_chf_million": 31.3,
    "capacity_mw": 583,
    "years": 15,
    "status": "Main-credit committee consideration suspended on 11 August 2026 pending further ElCom evidence; record checked 18 September 2026.",
    "excluded": "Activation fuel and energy-balancing costs; not a 2050 reserve budget."
  },
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    {
      "id": "bridge-energy-2042",
      "label": "Replacement-energy scale before first operation in 2042",
      "value": 47.273,
      "unit": "TWh",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Cumulative historical-output equivalent from full years after the announced Beznau retirements to the year before first new commercial operation.",
      "formula": "Sum Beznau unit 2 mean from 2033 and unit 1 mean from 2034 through 2041.",
      "limitation": "Holds 2021–2025 mean generation constant for an illustration. Excludes retirement-year partial effects, demand growth, losses and winter adequacy. Does not assume a new unit replaces the entire gap.",
      "sources": [
        "reliability-plan-calculations",
        "nuclear-delivery-calculations"
      ],
      "reviewedAt": "2026-09-18"
    },
    {
      "id": "bridge-energy-2047",
      "label": "Replacement-energy scale before first operation in 2047",
      "value": 75.06400000000001,
      "unit": "TWh",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Cumulative historical-output equivalent from full years after the announced Beznau retirements to the year before first new commercial operation.",
      "formula": "Sum Beznau unit 2 mean from 2033 and unit 1 mean from 2034 through 2046.",
      "limitation": "Holds 2021–2025 mean generation constant for an illustration. Excludes retirement-year partial effects, demand growth, losses and winter adequacy. Does not assume a new unit replaces the entire gap.",
      "sources": [
        "reliability-plan-calculations",
        "nuclear-delivery-calculations"
      ],
      "reviewedAt": "2026-09-18"
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    {
      "id": "bridge-energy-2053",
      "label": "Replacement-energy scale before first operation in 2053",
      "value": 108.4132,
      "unit": "TWh",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Cumulative historical-output equivalent from full years after the announced Beznau retirements to the year before first new commercial operation.",
      "formula": "Sum Beznau unit 2 mean from 2033 and unit 1 mean from 2034 through 2052.",
      "limitation": "Holds 2021–2025 mean generation constant for an illustration. Excludes retirement-year partial effects, demand growth, losses and winter adequacy. Does not assume a new unit replaces the entire gap.",
      "sources": [
        "reliability-plan-calculations",
        "nuclear-delivery-calculations"
      ],
      "reviewedAt": "2026-09-18"
    },
    {
      "id": "reserve-stress-peak",
      "label": "Peak shortfall in the nuclear-inclusive stress case",
      "value": 5.2619034901271124,
      "unit": "GW",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Largest hourly electricity shortfall after the archived generation and storage dispatch.",
      "formula": "Maximum hourly unserved GW across 8,784 hours.",
      "limitation": "Post-dispatch overlay on one hypothetical 2050 case using 2011/12 weather. All reserve power is assumed available in each shortage hour, with unlimited activation energy. Existing hydro dispatch is held fixed. No start/ramp constraints, reserve outages, fuel logistics, internal grid or redispatch; no statistical reliability or optimal reserve-size claim.",
      "sources": [
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
    },
    {
      "id": "reserve-stress-hours",
      "label": "Hours with a shortfall",
      "value": 80,
      "unit": "hours",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Modelled hours with unserved power above numerical tolerance.",
      "formula": "Count hourly gaps greater than 0.000001 GW.",
      "limitation": "Post-dispatch overlay on one hypothetical 2050 case using 2011/12 weather. All reserve power is assumed available in each shortage hour, with unlimited activation energy. Existing hydro dispatch is held fixed. No start/ramp constraints, reserve outages, fuel logistics, internal grid or redispatch; no statistical reliability or optimal reserve-size claim.",
      "sources": [
        "reliability-plan-calculations"
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      "reviewedAt": "2026-09-18"
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    {
      "id": "reserve-overlay-power",
      "label": "Available reserve that covers this frozen shortfall",
      "value": 5.27,
      "unit": "GW",
      "status": "assumption",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "The observed model peak rounded upward to 0.01 GW for the overlay.",
      "formula": "ceil(model peak GW × 100) / 100.",
      "limitation": "Post-dispatch overlay on one hypothetical 2050 case using 2011/12 weather. All reserve power is assumed available in each shortage hour, with unlimited activation energy. Existing hydro dispatch is held fixed. No start/ramp constraints, reserve outages, fuel logistics, internal grid or redispatch; no statistical reliability or optimal reserve-size claim.",
      "sources": [
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
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    {
      "id": "reserve-overlay-full-load",
      "label": "Output-equivalent hours for the reserve overlay",
      "value": 41.116780006152,
      "unit": "hours",
      "status": "calculated",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Annual reserve energy divided by assumed available reserve power. Different from hours with any operation.",
      "formula": "216.685430632421 GWh / 5.27 GW.",
      "limitation": "Post-dispatch overlay on one hypothetical 2050 case using 2011/12 weather. All reserve power is assumed available in each shortage hour, with unlimited activation energy. Existing hydro dispatch is held fixed. No start/ramp constraints, reserve outages, fuel logistics, internal grid or redispatch; no statistical reliability or optimal reserve-size claim.",
      "sources": [
        "reliability-plan-calculations"
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      "reviewedAt": "2026-09-18"
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    {
      "id": "reserve-contracted-power",
      "label": "Planned reserve capacity in the federal proposal",
      "value": 583,
      "unit": "MW",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Aggregate future contracted capacity described in the June 2026 proposal.",
      "formula": "Published programme total.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-financing-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
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    {
      "id": "reserve-contract-years",
      "label": "Planned reserve availability period",
      "value": 15,
      "unit": "years",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Proposed availability period starting around 2030, subject to project delivery.",
      "formula": "Published contractual duration.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-financing-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
    },
    {
      "id": "reserve-cost-contracts",
      "label": "Reserve construction and availability cost",
      "value": 1880,
      "unit": "CHF million",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Aggregate construction and 15-year availability estimate before planning contingency.",
      "formula": "Section 3.2.3 published total.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
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    {
      "id": "reserve-cost-contingency",
      "label": "Planning contingency in the main reserve credit",
      "value": 300,
      "unit": "CHF million",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Allowance included for specified project cost increases.",
      "formula": "Section 3.2.3 published allowance.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
    },
    {
      "id": "reserve-cost-credit",
      "label": "Main reserve credit requested",
      "value": 2180,
      "unit": "CHF million",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Construction and availability including contingency and VAT; excludes activation fuel and energy-balancing costs.",
      "formula": "1,880 + 300 = 2,180.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
    },
    {
      "id": "reserve-cost-preparation",
      "label": "Separate preparation credit requested",
      "value": 100,
      "unit": "CHF million",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Separate credit bringing forward project work and component payments; the message says this does not increase total costs.",
      "formula": "Section 3.2.2 and the parliamentary record.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
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      "id": "reserve-cost-monthey",
      "label": "Separate Monthey transition credit requested",
      "value": 31.3,
      "unit": "CHF million",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Separate transition credit bringing forward work originally planned under the long-term contract, with lower subsequent conversion costs.",
      "formula": "Section 3.2.2 and the parliamentary record.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
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      "reviewedAt": "2026-09-18"
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      "label": "Contractual on-site fuel duration",
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      "unit": "days",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Fuel-storage obligation described in the federal message.",
      "formula": "Section 3.2.10.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
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      "reviewedAt": "2026-09-18"
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      "unit": "weeks",
      "status": "scenario",
      "period": "Reliability plan reviewed 18 September 2026",
      "definition": "Obligation to secure resupply and logistics; not ten weeks of on-site stock.",
      "formula": "Section 3.2.10.",
      "limitation": "Dated proposal/contractual description. The committee suspended consideration of the main credit on 11 August 2026. Values are not current commissioned supply, final outturn or generic supplier prices.",
      "sources": [
        "reserve-credit-message-2026",
        "reliability-plan-calculations"
      ],
      "reviewedAt": "2026-09-18"
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