Bill Green

Bill Green is Founder and Managing Partner of Climate Adaptive Infrastructure (CAI), bringing 35 years of experience in sustainable energy and infrastructure investment. CAI is a real assets investment fund focused on low-carbon energy and water investments in North America.

Before founding CAI, Bill served as CEO of MIC Renewable Energy Holdings, a project finance group within Macquarie Infrastructure Company, where his team originated more than $1 billion of utility-scale renewable energy assets nationwide, including the founding investment in Intersect Power.

Bill is well known for his work as a co-founder of VantagePoint’s CleanTech Practice, one of the largest private equity platforms in CleanTech. Earlier, he founded or co-founded four CleanTech companies, including Ecolink, one of the first companies to produce alternatives to ozone-depleting solvents and chemicals. Bill attended New York University and completed coursework at the Wharton School. He lives in Mill Valley, California, with his wife, fashion designer Margaret O’Leary.

Climate Adaptive Infrastructure

Climate Adaptive Infrastructure (CAI) is an investment firm that targets large-scale, low-carbon real assets in the sustainable energy and industrial water and wastewater sectors. CAI seeks to deliver meaningful investor returns by investing in projects that support the day-to-day needs of growing populations while addressing the “triple threat” of the climate crisis: physical risk, regulatory risk, and political risk. CAI coined the term ‘climate adaptive infrastructure’ to describe the future of real assets investing in a world that is increasingly focused on deep decarbonization. Led by Founder and Managing Partner Bill Green, the Firm is proud of its deeply experienced team of professionals who have dedicated their careers to sustainable infrastructure investment, asset operations, and policy in the energy, water and environmental sectors.