Natural gas-fired power plants generated 2% of the electricity produced in Pennsylvania in 2001. Over the next 20 years, natural gas-fired generation in the state increased rapidly, reaching 52% in 2021. Natural gas displaced most coal-fired generation, which fell from 57% of the electricity generated in Pennsylvania in 2001 to 12% in 2021. Natural gas production has grown significantly in Pennsylvania over the past two decades, rising from 0.1 trillion cubic feet (Tcf) in 2001 to 7.6 Tcf in 2021, making the amount of natural gas produced in Pennsylvania second only to Texas. Pennsylvania sits on top of the Marcellus ... (full story)