Sumant Sinha (born 12 February 1965) is an Indian businessman and entrepreneur. He is the founder, chairman, and chief executive officer of ReNew Energy Global Ltd, a renewable energy company headquartered in India. The company is regarded as one of the leading renewable energy companies in India.
Sinha completed his undergraduate education in engineering from the Indian Institute of Technology Delhi. He later obtained a postgraduate diploma in management from the Indian Institute of Management Calcutta and earned a master's degree from Columbia UniversityâÂÂs School of International and Public Affairs.
Sinha began his career with Tata Administrative Services. He subsequently worked in investment banking roles with Citicorp Securities and ING Barings in the United States and the United Kingdom. He returned to India in 2002 and joined the Aditya Birla Group, where he served as Chief Financial Officer. During his tenure, the group expanded across sectors including cement, aluminium, and telecommunications. He later served as chief executive officer of Aditya Birla Retail from 2007 to 2008.
In 2008, he joined Suzlon Energy in a senior leadership role. He is a board member at Indian Institute of Technology Delhi. He has also served on the boards of the Indian Institute of Management Calcutta and Columbia University's School of International and Public Affairs (SIPA).
In 2011, Sinha founded ReNew Power (now ReNew Energy Global Ltd), an independent renewable energy producer headquartered in Gurugram. The company has produced wind power, solar power, and hybrid energy. Sinha established ReNew with a target of achieving 1,000 MW capacity by 2015. Its first project, a 25 MW wind farm in Jasdan, Gujarat, was commissioned in 2012.
In 2014, the company secured its first solar power project in Madhya Pradesh. Over time, ReNew expanded significantly and built a large renewable energy portfolio across India. In 2021, ReNew became one of the first Indian renewable energy companies to be listed on the NASDAQ.
He has been associated with global climate and energy initiatives and has participated in activities of the World Economic Forum. In 2024, he was appointed co-chair of the Alliance of CEO Climate Leaders.
He has also held leadership roles in ASSOCHAM.
Sinha is the author of Fossil Free: Reimagining Clean Energy in a Carbon-Constrained World.
Sinha is married to Vaishali Nigam Sinha, who is associated with sustainability initiatives and serves as President of the UN Global Compact Network India.