(Bonus) Problem\#5. Based on the following chart, describe your vision for the future electric energy systems: U.S. primary energy consumption by energy source, 2020 total =92.94 quadrilion British thermal units (Btu) total =11.59 quadrilion Btu Sourte. U.S. Energy Information Administration, Monthly Energy Review, Table 1.3 and 10.1. April 2021, preliminany data Note. Sum of components may not equal 100% because of independent rounding