 Renewable energy is still a small player in the U.S. energy ecosystem, accounting for just 10 of U.S. electricity sales and 7 of U.S. energy consumption, excluding hydropower. Oil, natural gas, nuclear, and even coal will keep us comfortable, charged, and on the go well into the next decade. Tech, consumer, and even oil and gas firms are rushing into renewable energy to establish sustainability cred, and politicians are greening up their resumes. 