This paper explores the factors that drive purchases of green power by private and public organizations. Using a cross-sectional analysis of participants in EPA’s Green Power Partnership, I explore whether state energy policies have motivated increased consumption of green power among these participating organizations. Additionally, I analyze economic and political variables by state to determine if certain factors contribute to an organization’s green power purchases. I find that state mandates on renewable energy production and lower premiums for green power lead to increased purchases of green power for members of the Green Power Partnership.