{
  "meta": {
    "key": "solar_cost",
    "title": "Solar PV Cost",
    "unit": "USD/W",
    "category": "Energy",
    "source": "IRENA / Nemet / Farmer & Lafond, via Our World in Data",
    "sourceUrl": "https://ourworldindata.org/grapher/solar-pv-prices",
    "verified": "2026-09-06",
    "url": "https://exponentialtracker.com/curve/solar_cost",
    "csv": "https://exponentialtracker.com/data/solar_cost.csv",
    "json": "https://exponentialtracker.com/data/solar_cost.json",
    "retrievedFrom": "Compiled by Exponential Tracker and re-derived from the source named above. Rebuilt on every deploy, so re-fetch rather than trusting a saved copy to be current.",
    "rights": "The underlying data belongs to IRENA / Nemet / Farmer & Lafond, via Our World in Data. This compilation may be reused with attribution to Exponential Tracker. No licence is claimed or implied over the source data.",
    "citation": "Exponential Tracker, \"Solar PV Cost\", exponentialtracker.com/curve/solar_cost, data verified 2026-09-06. Underlying source: IRENA / Nemet / Farmer & Lafond, via Our World in Data."
  },
  "data": [
    {
      "year": 1975,
      "value": 132.4,
      "label": "$132/W, spacecraft-grade cells"
    },
    {
      "year": 1976,
      "value": 99.6
    },
    {
      "year": 1977,
      "value": 72.66
    },
    {
      "year": 1978,
      "value": 51.41
    },
    {
      "year": 1979,
      "value": 43.2
    },
    {
      "year": 1980,
      "value": 36.6
    },
    {
      "year": 1981,
      "value": 29.27
    },
    {
      "year": 1982,
      "value": 26.3
    },
    {
      "year": 1983,
      "value": 21.23
    },
    {
      "year": 1984,
      "value": 19.73
    },
    {
      "year": 1985,
      "value": 17.22
    },
    {
      "year": 1986,
      "value": 14.24
    },
    {
      "year": 1987,
      "value": 12.11
    },
    {
      "year": 1988,
      "value": 11.31
    },
    {
      "year": 1989,
      "value": 11.69
    },
    {
      "year": 1990,
      "value": 12.09
    },
    {
      "year": 1991,
      "value": 11.2
    },
    {
      "year": 1992,
      "value": 10.44
    },
    {
      "year": 1993,
      "value": 9.759
    },
    {
      "year": 1994,
      "value": 9.232
    },
    {
      "year": 1995,
      "value": 8.536
    },
    {
      "year": 1996,
      "value": 7.98
    },
    {
      "year": 1997,
      "value": 7.952
    },
    {
      "year": 1998,
      "value": 7.166
    },
    {
      "year": 1999,
      "value": 6.619
    },
    {
      "year": 2000,
      "value": 6.496
    },
    {
      "year": 2001,
      "value": 6.284
    },
    {
      "year": 2002,
      "value": 5.747
    },
    {
      "year": 2003,
      "value": 5.464
    },
    {
      "year": 2004,
      "value": 4.695
    },
    {
      "year": 2005,
      "value": 4.746
    },
    {
      "year": 2006,
      "value": 5.173
    },
    {
      "year": 2007,
      "value": 5.211,
      "label": "Polysilicon shortage spikes prices"
    },
    {
      "year": 2008,
      "value": 4.749
    },
    {
      "year": 2009,
      "value": 3.174
    },
    {
      "year": 2010,
      "value": 2.512
    },
    {
      "year": 2011,
      "value": 2.061
    },
    {
      "year": 2012,
      "value": 1.111
    },
    {
      "year": 2013,
      "value": 0.8566
    },
    {
      "year": 2014,
      "value": 0.7905
    },
    {
      "year": 2015,
      "value": 0.7357
    },
    {
      "year": 2016,
      "value": 0.6803
    },
    {
      "year": 2017,
      "value": 0.5714
    },
    {
      "year": 2018,
      "value": 0.5091
    },
    {
      "year": 2019,
      "value": 0.4669
    },
    {
      "year": 2020,
      "value": 0.3697
    },
    {
      "year": 2021,
      "value": 0.3319
    },
    {
      "year": 2022,
      "value": 0.3658
    },
    {
      "year": 2023,
      "value": 0.3218
    },
    {
      "year": 2024,
      "value": 0.2652,
      "label": "$0.27/W (constant 2025$)"
    }
  ]
}