This book focuses on five of the policy types that are most relevant to the U.S. market and political context for the exploration and confirmation of conventional hydrothermal (geothermal) resources in the United States. They include drilling failure insurance; loan guarantees; subsidised loans; capital subsidies; and government-led exploration. The book describes each policy type and its application in other countries and regions. It offers policy-makers a guide for drafting future geothermal support mechanisms for the exploration-drilling phase of geothermal development. The book also focuses on the design of Feed-in-Tariff (FIT) incentive policies for geothermal electric projects and how FITs can be used to reduce risks.