Skip to main content
Geosciences LibreTexts

2.4.1: Sankey Diagram Questions

  • Page ID
    15923
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)

    Please refer to the Sankey diagrams for Washingto and Pennsylvania to answer the knowledge check questions. For consistency, the 2012 Sankey diagram for the U.S. is also provided for comparison. 

    Sankey diagra for the United States for 2012

    2012 Sankey diagram for Washington State

    2012 Lawerence Livermore National Laborator

    Washington State Sankey diagram

    2012 Sankey diagram for Washington State

    2012 Lawerence Livermore National Laboratory

    Pennsylvania State Sankey diagram for 2012

    2012 Sankey diagram for Pennsylvania state

    2012 Lawerence Livermore National Laborator

    Check Your Understanding

    Q1: Compared to Washington State, is Pennsylvania’s energy mix more or less similar to the energy mix of the U.S. as a whole?

    Answer

    Compared to the U.S. as a whole, Pennsylvania is very similar. Like the U.S. as a whole, Pennsylvania relies primarily on a mix of fossil fuels (natural gas and coal) and nuclear energy for electric power generation and oil for transportation. Washington on the other hand relies principally on hydropower for electricity generation.

    Q2: Identify the biggest source of energy used in electricity production in Pennsylvania, Washington and the US as a whole?

    Answer

    In Washington the biggest energy source for electricity production is hydro power. In Pennsylvania and the US as a whole, it is coal.

    Q3: Is a greater proportion of total energy wasted in Washington or Pennsylvania? How do these states compare to the U.S. as a whole?

    Answer

    In Washington about 2/3 of all energy is wasted. In Pennsylvania the percentage is very slightly smaller (65% versus two-thirds). In the U.S. as a whole the percentage of energy wasted is around 61%.


    2.4.1: Sankey Diagram Questions is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

    • Was this article helpful?