To Understand The Challenge, You Need To Understand Energy

A British Thermal Unit (BTU) is the amount of energy needed to heat a pint of water from 39 to 40 degrees Fahrenheit. It’s about the amount of energy consumed by burning a wooden match.

We currently measure energy consumption by counting ‘quads.’ A quad is one quadrillion BTUs. It is about the amount of energy consumed by burning the contents of a train full of coal that has 100 tons of coal in each car. The train would stretch for 3,780 miles, from Albuquerque, New Mexico to Anchorage, Alaska.

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