Where is solar power used the most?


Solar power is a renewable and clean energy source that is growing both within the United States and around the world. In 2019, 176 gigawatts (GW) of new renewable energy sources were installed globally, with wind power and hydropower as the most popular, and utility-scale and home solar right behind. 

In 2019, the U.S. installed a total of 2.6 GW of solar power, with 45 megawatts in commercial installations alone. Although U.S. installations are on the rise, China continues to dominate the world stage. 

Read on to dig a little deeper into solar power use around the globe.

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    What countries have the highest installed capacity of solar PV power?

    China leads the way in installed PV with the United States and Japan in second and third place for installed solar capacity, respectively. 

    The table below is based on data from the International Renewable Energy Agency 2018 country rankings report

    Installed capacity of solar power by country
    Ranking Country Installed PV (GWh)
    1 China 178,070
    2 U.S. 85,184
    3 Japan 62,667
    4 Germany 45,784
    5 India 31,066
    6 Italy 22,666
    7 U.K. 12,857
    8 Spain 12,744
    9 France 10,568
    10 Australia 9,930

    Where are solar energy resources located?

    Solar radiation produced from the sun’s energy is in abundance all over the globe, but some locations are more suitable for solar PV panels than others. 

    For example, it makes more sense to utilize the sun’s power in places where the sun shines all year long, such as in deserts. 

    Where there is more sun, there is better potential for including solar technologies within the utility energy mix. Some of the countries with the most sunlight are on the top 10 solar capacity list, such as Australia and India, but there is definitely untapped potential in Africa and South America. 

    solar insolation map
    Nearly every inch of the world has the potential to host solar panels and power the renewable energy future.

    Solar incentives play a huge part in market development

    Many of the countries in the world that have the highest per capita of installed solar power do not necessarily have high levels of insolation from the sun. 

    Government and state incentives play a major role in making solar power affordable. For solar to succeed, governments need to support the power industry’s shift to renewables. 

    A great example of this is the state of New Jersey. It is not one of the sunniest states in the U.S., compared to sunnier locations like Nevada or Hawaii, but it boasts a huge market for solar because of the generous state incentives coupled with federal incentives that make solar more affordable. 

    China is the largest solar energy producer in the world

    Over the past few years, the Chinese capacity of solar panels has increased exponentially. It has grown to be the largest solar market in the world and it is estimated that by 2024, China will have 370GW of solar power installed, double that of what the U.S. is expected to have.

    While this growth is impressive and admirable, China will have to continue to ease off their coal power generation dependence to be seen as a true leader in renewable energy. 

    Other key players

    Europe has been incentivising renewable growth for years and plans to boost renewables to enhance their post-COVID-19 economic recovery. Additionally, Germany, Italy, the UK, Spain and France are currently at the top in terms of solar farm capacity. 

    Germany itself creates 7.9% of global solar power while Italy, the 6th highest solar producer in the world, plans to install an additional 50GW of solar projects by 2030. 

    To reduce CO2 emissions, the European Union countries are planning to draw most of their electricity from renewables by 2050, with solar power as the leading power source. 

    The solar photovoltaic industry is increasing in the U.S.

    In addition to the federal solar tax credit, individual states offer local incentives for installing residential solar systems. 

    Energy companies within the U.S. are also starting to embrace solar for its low-cost energy production and job creation - and are beginning to incorporate solar power plants into their energy mix. 

    California remains at the forefront for solar PV system growth in the U.S. and is one of the best states for installing solar. But now, other states are catching up, including Texas, Utah, Florida, New York, Massachusetts and Rhode Island. 

    It is projected that by 2024, there will be an average of 1 solar installation per minute in the U.S., according to the Solar Energy Industries Association.

    The global trend for embracing and increasing solar pv capacity is catching on. Governments are beginning to see huge benefits for electricity production by utilizing solar panels. Solar thermal plants are the power source of the future and should be incorporated on a large-scale in every country. 

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    Key takeaways

    • China uses the most solar power globally, generating over 170 kWhs of electricity using just solar, with a projected 370 kWhs of installed solar by 2024.
    • Government incentives are the largest driver of solar power and many countries are embracing a renewable energy transition to enhance their economies for a post-COVID world.
    • Solar installations are becoming cheaper and are expected to increase in both residential and commercial U.S. markets - with the potential of 1 solar installation per minute in the US by 2024.
     - Author of Solar Reviews

    Ana Almerini

    Web Content Specialist

    Ana is a web content specialist at SolarReviews. She has 5 years of marketing experience blended with 2 years of experience in climate communications and holds a master of arts degree in climate and society from Columbia University. Ana frequently volunteers for environmental causes ranging from oyster reef restoration in NJ to expanding bike sharing in Naples, Italy.

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