Our Team

James D. Bishop, Jr., Chairman, Chief Executive Officer and President, joined Caithness in 1988. Mr. Bishop holds a Master of Business Administration degree from the Kellogg Graduate School of Management at Northwestern University and holds a Bachelor of Science degree from Trinity College.

Barbara B. Gollan, Executive Vice President and Managing Director, joined Caithness as Vice President in October 1990. Ms. Gollan was fuel manager for Caithness geothermal projects. Ms. Gollan has authored and co-authored a number of technical papers on geothermal systems, which were presented to the Geothermal Resources Council, the Geologic Society of America and the Stanford Geothermal Workshop. Ms. Gollan holds a Master of Science degree in Geology and Geochemistry from Stanford University and holds a Bachelor of Arts degree from Amherst College.

David V. Casale, Chief Operating Officer, joined Caithness in 1991 and was previously the Senior Vice President of Tax and Accounting for Caithness Energy and its affiliates. During his tenure he headed up the oversight and involvement with financing, taxation, and accounting matters. During his tenure with Caithness Mr. Casale started the tax department as the Tax Manager and quickly advanced to Controller then Vice President. During that time, he was involved with a variety of complex transactions including public debt offerings (144A transaction) and its related filings, private debt and equity financings and Production Tax Credit equity flip structures. Mr. Casale started his career as an auditor with KPMG Peat Marwick, L.L.P. in its Long Island office and subsequently moved to Arthur Anderson & Co.’s tax practice in New York City. There he specialized in complex partnership structures in the oil and gas industry. Mr. Casale graduated from Adelphi University in December of 1986 and holds a degree of Bachelor of Business Administration in Accounting.

Derrel A. Grant, Jr., Senior Vice President, Development joined the Caithness platform in 2004. Mr. Grant has worked on the redevelopment of SEGS VIII and IX plants and now works on wind and fossil development. Prior to joining Caithness, Mr. Grant served as Vice President of FPL Energy, the non-regulated independent power company owned by FPL Group, Inc. From August 1990 to November 2004, Mr. Grant held various senior-level positions within several affiliates of FPL Group, Inc. Mr. Grant spent the first eleven years of his career working in Jamaica, England and the Bahamas. Mr. Grant holds a Master of Business Administration degree from the University of Miami, Professional Certificate in Power Plants from the Central Electricity Generating Board in England, Master of Science, Electrical Engineering and Bachelor of Science, Mechanical Engineering from the University of the West Indies.

Vincent G. Giglio, Senior Vice President and Controller, joined Caithness in 2004. He has held various positions within the Accounting and Tax department prior to being promoted to Controller in August 2015. He is a Certified Public Accountant, holds a Master’s of Science Taxation from St. John’s University and a Bachelor of Science degree from St. John’s University.

Maryelizabeth Duffy, Human Resource Manager, joined Caithness in 1986. Currently, she is responsible for the overall administration, coordination and evaluation of the human resource function. Throughout the course of her career with Caithness, she’s provided administrative support to numerous executives and partners, managed the accounts payable department and maintained office services by organizing office operations and procedures. Ms. Duffy holds a Bachelor of Science in Math from SUNY Geneseo.