The bar graph depicts data about electricity generation in the United States using renewable and non-renewable energy during 2009 and again a decade later in 2019.
Overall, energy generation in the USA using both renewable and non-renewable energy sources increased in 2019 compared to 2009, except for petroleum and coal. Whereas, the usage of renewable energy sources also increased predominantly, except for hydroelectric, which remained constant over the period.
It is evident that, in 2019, renewables and nuclear saw a notable increase of above 700 billion kilowatt-hours, and natural gas increased significantly to over 1500 billion kilowatt-hours. Whereas, coal dramatically declined to 966 from 1756 billion kilowatt-hours in 2009, and petroleum also decreased to almost 40 from 57 billion kilowatt-hours in 2009.
Moreover, the renewable energy sources solar and wind increased dramatically to 73 and 300 billion kilowatt-hours in 2019. While, geothermal, plant/animal matter, and hydroelectric remained almost the same in proportion over the years 2009 and 2019.