Turn up the heatUtah’s hottest new power source is 15,000 feet below the groundI recently visited Cape Station, the future home of the world’s largest enhanced geothermal power plant.By Bill Gates published 2 days agoWhen my son, Rory, was younger, we used to love visiting power plants together. It was the perfect father-son activity (for us, anyway), and we always had a blast checking out the huge equipment and learning how it was used to generate electricity.One of our more memorable trips was...