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Environmental science chart assignment

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Chart 1 of 1 · Energy

Where does US electricity come from?

Chart: Where does US electricity come from?

In 2025 natural gas made 40.8% of US electricity, followed by nuclear (17.7%) and coal (16.6%). Wind made 10.5% and solar 6.7%. Solar counts only utility-scale plants, not rooftop panels, and the 2025 figures are preliminary.

Source: U.S. Energy Information Administration, Monthly Energy Review (Table 7.2a) (Public domain (U.S. government work)) · Data as of Dec 31, 2025

How to read this chart

Each bar is one energy source's share of all the electricity made in the U.S. in a year, so the bars add up to about 100%. The bars start at zero, so a bar twice as long means twice the share. Solar counts only large power plants, not panels on rooftops.

Questions

  1. What are the three biggest sources of U.S. electricity?
  2. Which of these sources release carbon dioxide when they make electricity, and which don't?
  3. What are the trade-offs (cost, land, waste, steady supply) between nuclear power and wind and solar?

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