Types of Graphs. 1  Types of Graphs: Bar Graphs. 2  Types of Graphs: Box and Whiskers (Boxplots) 3  Types of Graphs: Frequency Distributions.  Types of Graphs: 1  Histogram. Types of Graphs: Line Graphs.  Types of Graphs: Pie 1  Graphs. Types of Graphs: Scatter Graphs.  Types of Graphs: Stemplots.
The 1950s. By the end of the war, TVA had completed a 652-mile navigation channel the length of the Tennessee River, and had become the nationâs largest electricity supplier.
In 2011, an integrated resource plan, TVAâs Environmental and Energy Future, was completed to help guide decision-making to support TVA's mission. In early 2012, an assessment of the work remaining to complete Watts Bar Unit 2 established a schedule for completion by December 2015. The transmission system achieved 99.999 percent reliability in 2014 for the 15th consecutive year. That same year, energy efficiency initiatives by TVA and local power companies reduced electricity consumption by 553 gigawatt-hours, which is the equivalent energy to power more than 36,000 area households for an entire year. TVA affirmed its commitment to improve the regionâs environment.