Fossil Free explores the urgency, the challenges, and the opportunities of transitioning away from fossil fuels to cleaner sources of energy. The book serves as a rallying call to confront the greatest existential threat of our time - climate change. It is the first book to be penned by Sumant Sinha, founder of ReNew, India’s leading decarbonization solutions provider, wherein he provides a concise introduction to the challenges, realities, and complexities of the global and local energy industry, as well as the trends and forces driving the energy transition. The book explains how improved electricity infrastructure, decentralized smart grids, electric vehicles, energy storage, and market design are already providing clear pathways for the transition towards green, efficient, affordable, and secure renewable energy across the energy-use chain: extraction, conversion, transmission, distribution, and end use.
मुख्यमंत्री श्री @myogiadityanath जी महाराज से आज लखनऊ में रिन्यू पावर ग्रुप, गुरुग्राम के चेयरमैन एवं सीईओ श्री सुमन्त सिन्हा जी ने शिष्टाचार भेंट की। pic.twitter.com/AXEf4WDwuQ
— Yogi Adityanath Office (@myogioffice) October 23, 2025
I was honored to participate in the book presentation ‘Fossil Free’ written by my good friend @sumant_sinha.
— Naor Gilon (@NaorGilon) August 23, 2023
Sumant is the founder of @ReNewCorp one of the leading Green Energy companies in India.
Interesting talk on #cleanenergy by Union Minister @RajKSinghIndia. pic.twitter.com/wPc3bkYF0O
SIPA alum @sumant_sinha MIA ’92 recently launched a revised edition of his book “Fossil Free"
— Columbia | SIPA (@ColumbiaSIPA) August 23, 2023
Sinha was a recipient of @ColumbiaSIPA’s 2022 Distinguished Alumni Awards and is the Founder, Chairman and CEO of ReNew Power, one of India’s leading renewable energy companies. pic.twitter.com/uoHCqX7hE7
A lot has happened with the global clean energy transition since @sumant_sinha's book was originally published. This edition includes new information from the past 2 years and a new chapter on hydrogen.
— Columbia | SIPA (@ColumbiaSIPA) August 23, 2023
Watch the @HarperCollins book launch: https://t.co/ZhUgbpBvfw