Gayle Tzemach Lemmon

Gayle Tzemach Lemmon

Global thought leader and strategist in energy transition & best selling author

5 February 2025, at Brach Hotel, Madrid


A trailblazing executive, strategist, U.S. policy veteran and three-time New York Times bestselling author, Gayle has dedicated her career to mobilizing private capital for the energy transition  and empowering global leaders to drive impactful change.

As a senior consultant to The Rockefeller Foundation’s Power and Climate team and a trusted advisor to U.S. and U.K. investment funds, family offices and global philanthropies, Gayle is at the forefront of energy transition initiatives aimed at decarbonizing power systems in developed and emerging markets. Her deep expertise spans finance, global security policy, energy, U.S. domestic politics, and economic development, making her a thought leader in shaping financially sustainable solutions for the future.

Gayle also champions the critical role of women and girls in unlocking growth and combating climate change. She emphasizes that investing in women, particularly in emerging markets, unlocks solutions to some of the world’s most pressing challenges, from accelerating the energy transition to creating economically resilience and vibrant communities. Her work highlights the interconnectedness of unlocking economic opportunity for all and sustainable development, making her insights especially timely in today’s global context.

Beyond her work in energy, Gayle’s voice resonates on the world stage. A sought-after speaker who began her career covering U.S. presidential elections at the ABC News Political Unit, she has addressed prestigious audiences at TED, the Aspen Ideas Festival, Harvard Business School, and the U.S. Military Academy at West Point. Her three bestselling books tell powerful stories of resilience and leadership in war, two of which are currently being adapted for Hollywood.