Ms. Petty has over 25 years experience in the geothermal industry in electrical and direct use project economics, optimizing of power plants to meet resource conditions, reservoir evaluation, reservoir modeling, well, plant and wellfield performance data analysis, well testing and test data analysis. She has also assisted in negotiation of geothermal lease agreements, power sales agreements, geothermal project financing agreements and geothermal property sales and purchases. Ms. Petty has done work on geothermal electrical generation projects in Nevada at Steamboat, Dixie Valley, Rye Patch, Soda Lake, Fallon, Desert Peak, Brady Hot springs and direct use projects at Brady, Elko and Moana. In California she has worked on the Coso, Salton Sea, East Mesa, Heber, Brawley, Wendell-Amedee, Mt. Lassen and Medicine Lake resources. She has worked on geothermal projects overseas in Indonesia, the Philippines and Central America. For a number of years, Ms. Petty assisted the Department of Energy in performing policy studies for geothermal energy research including economic modeling of geothermal pricing and the impact of technology improvement on the cost of geothermal power. She performed a signature study still in use today of the potential cost of geothermal power supply from projects across the western U.S.