Ecofin Sustainable and Social Impact Term Fund is a non-diversified, closed-end management investment company. Its investment objective is to invest under normal conditions, at least 80% of its total assets in issuers operating in essential asset sectors, including education, housing, healthcare, social and human services, power, water, energy, infrastructure, basic materials, industrial, transportation and telecommunications sectors. It invests across all levels of an issuer’s capital structure and emphasize investments, in social infrastructure, sustainable infrastructure and energy infrastructure. Its investment portfolio includes direct investments, listed equity securities and corporate debt securities. It invests in listed equity securities of issuers operating in common stock, common units of master limited partnerships and of limited liability companies. Its investment adviser is Tortoise Capital Advisors, L.L.C.