Over one third of new solar PV capacity installations worldwide are rooftop attachements. The share of rooftop solar reached a peak in 2018, when 43 percent of all solar panels deployed that year were fitted on residential and commercial buildings. China and the United States are expected to account for the greatest solar capacity additions in the next few years.
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IEA. (November 7, 2020). Share of rooftop installed solar panels in total solar photovoltaic deployment worldwide from 2015 to 2020, with a forecast until 2022 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/1172031/rooftop-share-in-solar-pv-deployment/
IEA. "Share of rooftop installed solar panels in total solar photovoltaic deployment worldwide from 2015 to 2020, with a forecast until 2022." Chart. November 7, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/1172031/rooftop-share-in-solar-pv-deployment/
IEA. (2020). Share of rooftop installed solar panels in total solar photovoltaic deployment worldwide from 2015 to 2020, with a forecast until 2022. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/1172031/rooftop-share-in-solar-pv-deployment/
IEA. "Share of Rooftop Installed Solar Panels in Total Solar Photovoltaic Deployment Worldwide from 2015 to 2020, with a Forecast until 2022." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 7 Nov 2020, /statistics/1172031/rooftop-share-in-solar-pv-deployment/
IEA, Share of rooftop installed solar panels in total solar photovoltaic deployment worldwide from 2015 to 2020, with a forecast until 2022 ÌÇÐÄÆƽâ°æ, /statistics/1172031/rooftop-share-in-solar-pv-deployment/ (last visited July 22, 2026)
Share of rooftop installed solar panels in total solar photovoltaic deployment worldwide from 2015 to 2020, with a forecast until 2022 [Graph], IEA, November 7, 2020. [Online]. Available: /statistics/1172031/rooftop-share-in-solar-pv-deployment/
