Hannon Armstrong Sustainable Infrastructure Capital, Inc. (HASI) is a prominent U.S. Real Estate Investment Trust (REIT) that invests in sustainable infrastructure assets to support the energy transition. The company focuses on advancing climate solutions by providing capital for projects that reduce greenhouse gas emissions and enhance resilience to climate change. HASI aims to generate attractive returns from a diversified portfolio of projects with long-term, predictable cash flows. HASI offers a variety of services across several sectors, including energy efficiency upgrades for buildings, financing for solar and wind energy projects, and investments in sustainable transportation solutions. The company also supports water and waste management initiatives and invests in infrastructure designed to withstand extreme weather events. Through its projects, HASI saves approximately 7 million metric tons of CO2 and 5 billion gallons of water annually, with a significant portion of its revenues aligned with energy transition efforts.