Fossil fuels were the largest source of electricity generation in Pennsylvania in 2021, with natural gas alone accounting for more than half of the power generated in the U.S. state. Nuclear power ranked second, representing about **** of Pennsylvania's electricity production that year.
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NEI. (August 31, 2022). Distribution of electricity generation in Pennsylvania, United States in 2021, by source [Graph]. In ÀÖ²¥´«Ã½app×îа汾. Retrieved August 13, 2026, from /statistics/1287663/pennsylvania-electricity-generation-share-by-source/
NEI. "Distribution of electricity generation in Pennsylvania, United States in 2021, by source." Chart. August 31, 2022. ÀÖ²¥´«Ã½app×îа汾. Accessed August 13, 2026. /statistics/1287663/pennsylvania-electricity-generation-share-by-source/
NEI. (2022). Distribution of electricity generation in Pennsylvania, United States in 2021, by source. ÀÖ²¥´«Ã½app×îа汾. ÀÖ²¥´«Ã½app×îа汾 Inc.. Accessed: August 13, 2026. /statistics/1287663/pennsylvania-electricity-generation-share-by-source/
NEI. "Distribution of Electricity Generation in Pennsylvania, United States in 2021, by Source." ÀÖ²¥´«Ã½app×îа汾, ÀÖ²¥´«Ã½app×îа汾 Inc., 31 Aug 2022, /statistics/1287663/pennsylvania-electricity-generation-share-by-source/
NEI, Distribution of electricity generation in Pennsylvania, United States in 2021, by source ÀÖ²¥´«Ã½app×îа汾, /statistics/1287663/pennsylvania-electricity-generation-share-by-source/ (last visited August 13, 2026)
Distribution of electricity generation in Pennsylvania, United States in 2021, by source [Graph], NEI, August 31, 2022. [Online]. Available: /statistics/1287663/pennsylvania-electricity-generation-share-by-source/
