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Global Electricity Access Gaps: A New Study Unveils Mapping Challenges and Opportunities

Strategic Insights

— 2 min read

A pressing concern in the fight against global energy inequality is access to electricity, a basic human necessity that underpins human development, critical infrastructure, and industries. Despite its importance, significant gaps in electrification still exist worldwide, with certain populations struggling to access this fundamental resource. To better understand and address these gaps, researchers from the University Space Research Association have conducted a comprehensive study, utilizing NASA's Black Marble data set to create high-resolution global maps of electrification.

Key Takeaways:

  • The study employed NASA's Black Marble nighttime lights data set to derive global maps of electrification at a 1 km resolution, covering the period from 2012 to 2022.
  • The research analyzed areas with the highest access gaps, identifying regions where electrification efforts are most needed.
  • The study's data set was used to inform energy transition plans and estimate electricity demand for integrated assessment models that evaluate the effects of climate change and energy transitions.
  • The researchers emphasized the importance of spatially-disaggregated data in addressing the global electricity access gap, highlighting the challenges associated with deriving such data on a global scale.
  • The study highlighted the potential of satellite observations, such as NASA Black Marble, in analyzing settlement pixels and electrification with its decade-long records.
  • The research's findings were evaluated through comparison with global surveys at the national scale, showing high agreement with the derived data.
  • The authors shared their results as an open-access data set, allowing for further research and analysis.
  • The study's findings have implications for energy policy, international development initiatives, and the fight against global energy inequality.

Statistics:

  • The study used NASA's Black Marble data set to create high-resolution global maps of electrification at a 1 km resolution.
  • The research analyzed 10 years of nighttime lights data from 2012 to 2022.
  • The estimated global electricity access gap identified areas where electrification efforts are most needed, with a focus on regions with high population density and limited access to modern energy sources.
  • The study's data set was used to inform energy transition plans and estimate electricity demand for integrated assessment models.
  • The research emphasized the importance of spatially-disaggregated data in addressing the global electricity access gap, with the potential to inform policy decisions at the national and international levels.

Sources:

  • "A Global Stocktake On Electricity Access and Gaps From Nasa Black Marble Nighttime Lights." Earth's Future, 2025;13(6).
  • Earth's Future, Amer Geophysical Union, 2000 Florida Ave NW, Washington, DC 20009, USA.
  • Universities Space Research Association, Washington, DC 20024, United States.
  • NewsRx. Findings on Information Technology Reported by Investigators at University Space Research Association (A Global Stocktake On Electricity Access and Gaps From Nasa Black Marble Nighttime Lights). Information Technology Newsweekly. July 1, 2025; p 258.

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