{
  "metadata": {
    "compiled": "2026-06-19",
    "source_search": "alternative / non-obvious sources for Nigeria grid electricity generation mix and hydro data",
    "note": "Values are extracted from the downloaded alternative sources and web-search highlights; they should be cross-checked against primary NERC/NBS releases before use in final emission factors."
  },
  "generation_mix_annual_estimates": [
    {
      "year": 2020,
      "source": "UNDP Nigeria Energy Finance Assessment (2020)",
      "gas_percent": 80,
      "hydro_percent": 20,
      "installed_capacity_mw": 12522,
      "peak_generation_mw_range": "3000-3800",
      "comment": "Pre-reform context; hydro described as cornerstone of generation mix"
    },
    {
      "year": 2022,
      "source": "IEA Country Profile Nigeria",
      "total_generation_gwh": 37916,
      "gas_percent": 74.5,
      "hydro_percent": 24.3,
      "bioenergy_percent": 1.1,
      "comment": "IEA World Energy Balances; hydro includes pumped storage"
    },
    {
      "year": 2023,
      "source": "EIA Nigeria Country Analysis Brief 2025",
      "total_generation_twh": 42.5,
      "gas_percent": 77,
      "hydro_percent": 23,
      "total_capacity_gw": 14.1,
      "comment": "Zungeru 700 MW commissioned June 2023; Kainji 760 MW under rehab"
    },
    {
      "year": 2024,
      "source": "Guardian Nigeria summary of NERC 2024 annual data",
      "total_generation_gwh": 37093.70,
      "hydro_gwh": 11469.85,
      "hydro_percent": 30.92,
      "avg_hourly_generation_mwh": 4222.87,
      "comment": "Hydropower provided critical load stability during gas shortfalls"
    }
  ],
  "quarterly_hydro_share": [
    {"period": "2023/Q2", "hydro_gwh": 1798.82, "hydro_percent": 20.29, "source": "NERC via Nairametrics"},
    {"period": "2023/Q3", "hydro_gwh": 2208.47, "hydro_percent": 25.49, "source": "NERC via Nairametrics"},
    {"period": "2024/Q2", "hydro_gwh": 2367.68, "hydro_percent": 26.98, "source": "NERC 2024 Q3 report"},
    {"period": "2024/Q3", "hydro_gwh": 3080.94, "hydro_percent": 32.60, "source": "NERC 2024 Q3 report"},
    {"period": "2025/Q1", "hydro_gwh": 3081.88, "hydro_percent": 29.91, "source": "NERC 2025 Q1 report"},
    {"period": "2025/Q2", "hydro_gwh": 2967.28, "hydro_percent": 30.19, "source": "NERC 2025 Q2 report"}
  ],
  "hydro_plants": [
    {
      "name": "Kainji",
      "state": "Niger",
      "installed_mw": 760,
      "notes": "Largest hydro plant; rehab/expansion to 980 MW scheduled to complete by 2027",
      "sources": ["EIA 2025", "World Bank ESMP", "IHA/AfDB AHMP"]
    },
    {
      "name": "Jebba",
      "state": "Niger",
      "installed_mw": 578.4,
      "notes": "Third operational hydro plant; six 96.4 MW turbines; output varies with inflow",
      "sources": ["EIA 2025", "World Bank ESMP", "IHA/AfDB AHMP"]
    },
    {
      "name": "Shiroro",
      "state": "Niger",
      "operator": "North South Power",
      "installed_mw": 600,
      "record_generation_gwh": 2688,
      "record_year": 2016,
      "average_annual_gwh_since_1990": 2230,
      "notes": "Provides ~8% of Nigeria grid power on average; black-start capability for Abuja",
      "sources": ["North South Power website", "InfraCredit"]
    },
    {
      "name": "Zungeru",
      "state": "Niger",
      "installed_mw": 700,
      "commissioning": "June 2023",
      "notes": "Second-largest plant; added in 2023/2024",
      "sources": ["EIA 2025", "BusinessDay / Minister Adelabu"]
    },
    {
      "name": "Gurara",
      "state": "Kaduna",
      "operator": "North South Power",
      "installed_mw": 30,
      "typical_generation_gwh": 115,
      "capacity_factor_percent": 44,
      "notes": "25-year concession; 110 km 132 kV line to TCN Kudenda substation planned",
      "sources": ["North South Power website", "InfraCredit"]
    }
  ],
  "gas_to_power_supply": [
    {
      "period": "Jan 2017 – Jan 2018",
      "domestic_gas_supply_mmscfd": 1077.93,
      "gas_to_power_mmscfd": 672.92,
      "gas_to_power_percent_of_domestic": 62.43,
      "implied_power_mw": 2812,
      "source": "NNPC monthly report (ThisDay 2018)"
    },
    {
      "year": 2023,
      "total_gas_produced_tcf": 2.503,
      "utilised_tcf": 2.316,
      "utilisation_percent": 92.54,
      "daily_production_bcf": 6.857,
      "source": "NUPRC 2023 Annual Report (search highlights)"
    },
    {
      "year": 2024,
      "total_gas_produced_tcf": 2.511,
      "utilised_tcf": 2.317,
      "utilisation_percent": 92.26,
      "daily_production_bcf": 6.86,
      "domestic_sales_percent_of_produced": 28.7,
      "export_sales_percent_of_produced": 39.5,
      "source": "NUPRC 2024 Annual Report (search highlights)"
    }
  ],
  "thermal_gencos_observed": [
    {
      "company": "Transcorp Power",
      "plants": ["Ughelli"],
      "installed_mw": 972,
      "available_mw_end_2024": 625,
      "revenue_2024_ngn_bn": 305.9,
      "source": "Transcorp Power AFS 2024"
    },
    {
      "company": "Shell SPDC JV",
      "plants": ["Afam VI"],
      "technology": "CCGT",
      "installed_mw": 650,
      "generation_2008_2015_mwh": ">20,000,000",
      "cdm_project": "UNFCCC CDM project 5645",
      "source": "Shell Nigeria / CDM PDD"
    }
  ],
  "regional_master_plan_priority_projects_nigeria": [
    {"project": "Zungeru Hydropower Plant", "mw": 700, "source": "WAPP ECOWAS Master Plan 2019-2033"},
    {"project": "Mambilla Hydropower Plant", "mw": 3050, "source": "WAPP ECOWAS Master Plan 2019-2033"},
    {"project": "Kaduna Thermal Power Plant", "source": "WAPP ECOWAS Master Plan 2019-2033"},
    {"project": "Alaoji II Thermal Power Plant", "source": "WAPP ECOWAS Master Plan 2019-2033"},
    {"project": "Nigeria Solar Farm PV", "mw": 1000, "period": "2025-2029", "source": "WAPP ECOWAS Master Plan 2019-2033"},
    {"project": "Nigeria Wind Farm", "mw": 300, "source": "WAPP ECOWAS Master Plan 2019-2033"}
  ],
  "hydro_resource_potential": {
    "large_hydro_potential_mw": 11250,
    "large_hydro_untapped_percent": 83,
    "small_hydro_potential_mw": 3500,
    "small_hydro_exploited_mw": 64.2,
    "micro_dams": 70,
    "mini_dams": 126,
    "small_sites": 86,
    "source": "UNDP Nigeria Energy Finance Assessment (2020)"
  },
  "data_gaps_remaining": [
    "Annual plant-level generation (GWh) for all grid-connected plants 2020-2025",
    "Updated WAPP ASB0034 standardized baseline beyond 2019 data",
    "Direct downloadable NUPRC annual reports 2023/2024 (404 in this pass)",
    "Public CDP/GRI responses from Nigerian gencos",
    "Historical NERC/TCN generation data tables from Wayback Machine",
    "Parliamentary/FOI generation output records"
  ]
}
