What is the Sunny Days Multiplier?
The Sunny Days Multiplier shows how solar projects create greater impact when located in places that are sunnier.
Access the Impact Multiplier

Because solar projects produce more energy when days are longer, the geography of the Global South guarantees that solar projects placed there will prevent more carbon emissions than they would in the U.S. – the Sunny Days Multiplier is a metric that calculates exactly how many times more.

  • Solar produces more energy when the sun is out for more hours of the day. 
  • On average, solar projects get optimal sunlight for 4-5 hours per day in the U.S. while regions in the Global South can average 6-7 hours. 
  • The Sunny Days Multiplier is a component of the Impact Multiplier, which helps Renewables.org decide how to maximize carbon prevention.
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