{"id":1206697,"name":"Efficiency of lighting (OWID based on Fouquet & Pearson (2007))","unit":"lumen-hours per kilowatt-hour","description":"The weighted-average efficiency of lighting in the United Kingdom. Calculated based on percentage share and efficiency data of lighting sources from Fouquet & Pearson (2006). Data represents the national average efficiency, calculated as the sum of (% share * efficiency) of each source.","createdAt":"2026-03-06T11:06:12.000Z","updatedAt":"2026-05-11T09:17:41.000Z","coverage":"","timespan":"1700-2000","datasetId":7490,"columnOrder":0,"shortName":"efficiency_of_lighting__owid_based_on_fouquet__and__pearson__2007","catalogPath":"grapher/energy/2017-10-01/lighting_efficiency_in_uk__owid_based_on_fouquet__and__pearson__2007/lighting_efficiency_in_uk__owid_based_on_fouquet__and__pearson__2007#efficiency_of_lighting__owid_based_on_fouquet__and__pearson__2007","type":"float","dataChecksum":"7351548839555986088","metadataChecksum":"-5565279602515395999","datasetName":"Lighting efficiency in UK - OWID based on Fouquet & Pearson (2007)","datasetVersion":"2017-10-01","nonRedistributable":false,"display":{"unit":"lumen-hours per kilowatt-hour"},"schemaVersion":2,"presentation":{},"dimensions":{"years":{"values":[{"id":1700},{"id":1750},{"id":1800},{"id":1850},{"id":1900},{"id":1950},{"id":2000}]},"entities":{"values":[{"id":1,"name":"United Kingdom","code":"GBR"}]}},"origins":[{"id":14678,"title":"Seven Centuries of Energy Services - The Price and Use of Light in the United Kingdom (1300-2000)","description":"Data was calculated by OWID based on published figures by Fouquet and Pearson (2006). Calculated as the weighted-average efficiency of lighting in the United Kingdom. Calculated based on percentage share and efficiency data of lighting sources from Fouquet and Pearson (2006). Data represents the national average efficiency, calculated as the sum of (% share * efficiency) of each source.\n\nFor example: (share of lighting from candles * efficiency of candles) + (share of lighting from whale oil * efficiency of whale oil) + (share of lighting from kerosene * efficiency of kerosene).\n\nEfficiency is measured in lumen-hours per kilowatt-hour.","producer":"Fouquet and Pearson","citationFull":"Fouquet, R and Pearson, P J G (2006): \"Seven Centuries of Energy Services: The Price and Use of Light in the United Kingdom (1300-2000)\", The Energy Journal, 27(1).","urlMain":"http://eprints.lse.ac.uk/50460/","dateAccessed":"2017-10-03","datePublished":"2006"}]}