Also, electric cars still run on fossil fuels since most of our energy production relies on coal &#x2F; natural gas, though renewable energy is growing.<p>Major energy sources and percent share of total U.S. electricity generation in 2014:<p>Coal = 39%
Natural gas = 27%
Nuclear = 19%
Hydropower = 6%
Other renewables = 7%
Biomass = 1.7%
Geothermal = 0.4%
Solar = 0.4%
Wind = 4.4%
Petroleum = 1%
Other gases &lt; 1%<p>( <a href="https:&#x2F;&#x2F;www.eia.gov&#x2F;tools&#x2F;faqs&#x2F;faq.cfm?id=427&amp;t=3" rel="nofollow">https:&#x2F;&#x2F;www.eia.gov&#x2F;tools&#x2F;faqs&#x2F;faq.cfm?id=427&amp;t=3</a> )