Observations

What I found interesting in these visualizations was that Natural Gas took over Coal as the energy source that used the most power across all the sources. You can tell particularly in the line charts when in 2015, they intersect and Natural Gas passes 3 billion mWh in 2019. Also, it is interesting that in the 2000s, Coal was at an all time high reaching 4 billion mWh around the mid-2000s.

I wanted to see what states specifically were responsible for the Coal boom in the mid-2000s. In 2006, Pennsylvania and Indiana took the top spots. In 2007, it was just Pennsylvania this time. However, as of 2019, Pennsylvania does not use that much coal anymore.

Also, another thing I happened to find was that in the 1990s, Pennsylvania also used a relatively big amount of Nuclear energy and around 2000, started to drop just a little bit. Another thing I found was that in 1999, Illinois had a drop in Nuclear energy but in 2000, went back up to a substantial amount.

The heat maps on the first row correspond to the nuclear amounts in Pennsylvania and the maps on the second row correspond to the amounts in Illinois.

Another interesting thing I observed was that in terms of Natural Gas, the amount in Texas has stayed relatively high throughout the years and as of 2019 is still the state that uses the most Natural Gas across the US.

I wanted to look at a less significant energy source, so when I looked at Wood, in 1990 the state that used the most wood was California. In 2000, California was still pretty high, but Alabama took over as the leading state that used the most wood. In 2010, Maine and Georgia were the main states that primarily used wood. Finally in 2019, it is quite unclear to see if there is a state that uses the most wood. It looks like Virginia, Louisiana, South Carolina, and Florida are currently using the most wood.

The two heat maps on the first row correspond to 1990 and 2000 for wood, and the maps on the next row correspond to the amounts in 2010 and 2019 for wood.