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Solar Cells Could Reach 37% Efficiency by 2100

10/23/2025

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Story summary
  • Tandem silicon-perovskite solar cells could reach efficiencies of 35–37%, surpassing traditional silicon panels, according to recent research.
  • Experts predict solar energy could dominate global electricity supply by 2100, with estimates indicating it could account for about 80% of generation.
  • Commercialization and stability challenges remain, potentially slowing adoption despite rapid efficiency gains.
  • Grid upgrades and political factors may further affect deployment, though costs are falling and deployment is expanding.