Introduction

There is an incredibly large and complex infrastructure built around transportation and fossil fuel power. This infrastructure includes thousands of oil fields, pipelines, huge refineries, and trucks to distribute gasoline to over 150,000 gasoline and service stations. There are over 250 million registered passenger vehicles in the United States and many more parking spaces. Personal vehicles in the United States consume more than 378 million gallons of gasoline every day, which is over 45% of the U.S. oil consumption according to the U.S. Energy Information Administration.