The Ecofin Sustainable and Social Impact Term Fund, formerly known as the Tortoise Essential Assets Income Term Fund (and before that, Tortoise Essential Assets Income 2024 Term Fund, Inc.), operates as a closed-ended, balanced mutual fund. Launched in 2017 and domiciled in the United States, it is managed by Tortoise Capital Advisors L.L.C. The fund's primary objective is to invest in both equity and fixed-income markets, specifically targeting companies within vital "essential asset" sectors.