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Transcript of FO568 Raj Shamani: w/ Sumant Sinha

Editor’s Note: In this episode of Figuring Out (FO568), Raj Shamani sits down with Sumant Sinha, founder of ReNew, to unpack what he calls the next $1 trillion energy boom. They discuss India’s renewable energy growth, why electricity could become the biggest constraint for AI, how China came to dominate the clean tech supply chain, India’s path to energy self-reliance, and the business opportunities waiting for young entrepreneurs in the energy transition. This interview was premiered on September 29, 2026.

TRANSCRIPT:

Cheap, Abundant Energy and the Countries of the Future

RAJ SHAMANI: (00:02:25 – 00:03:34): Would you say this is something which is on my mind since a long time because I’ve been hearing a lot of conversations around it. Would you say that the most powerful country of the future will not be someone with most amount of oil, will be someone with the cheapest and the most abundant energy?

SUMANT SINHA: (00:03:36 – 00:03:45): Yeah, I would certainly say that. But in a lot of countries, oil is energy. And so therefore, the two are synonymous.

RAJ SHAMANI: (00:03:45 – 00:03:46): Let’s say electricity.

SUMANT SINHA: (00:03:46 – 00:03:54): Yeah. So let me give you a little bit of background. Okay. We tend to use electricity and energy synonymously or sort of interchangeably.

RAJ SHAMANI: (00:03:54 – 00:03:54): Yeah.

SUMANT SINHA: (00:03:55 – 00:04:52): But the reality is that energy is broader than electricity. Okay. Energy is used for heating. It’s used for cooling. It’s used for making different chemicals and so on. It’s used for making cement. It’s used for making steel. There are lots of industrial processes that it is used for. It is used for home heating and cooling. Right? So, it’s used for transportation, whether it’s cars or airplanes or ships, et cetera.

Electricity, which we use to power our lights and our homes and so on, is just a small component of energy. So, electricity actually accounts for only 20% of all energy consumption. Okay. Energy consumption itself generates carbon emissions, which account for almost 75 to 80% of all carbon emissions globally. And I’ll talk about why carbon emissions is important because it obviously leads to climate change.

How Fossil Fuels Became a Problem

RAJ SHAMANI: (00:04:52 – 00:04:52): Yeah.

SUMANT SINHA: (00:04:53 – 00:06:16): Right. So now what is happening is that when you look at how did oil become, or fossil fuels become a bad thing? They became a bad thing because while our entire economic system and our livelihoods are based on fossil fuels, because about in the early 20th century, cars were electric in nature. Then they got replaced by internal combustion engine cars. And our entire system then moved towards a fossil fuel-based economy, which was fine because nobody cared about carbon emissions.

But starting in the late 1990s, early 2000s, that realization dawned that the more carbon that we are emitting into the atmosphere, the more we are converting the atmosphere into a giant greenhouse. And what happens inside a greenhouse? The sun’s rays come in and the inside of the greenhouse gets warmed up. That’s what’s happening to the world right now, because the carbon in the atmosphere converts the atmosphere into a greenhouse kind of a system more than it should. And so therefore, it’s leading to higher temperatures. Now, when you have higher temperatures in the world as a whole, then we have these polar ice caps in the Arctic and the Antarctic.

RAJ SHAMANI: (00:06:16 – 00:06:16): Yeah, right.

SUMANT SINHA: (00:06:17 – 00:06:24): There’s a lot of water that is made into ice that is sitting there. The moment temperatures start going up, that ice starts melting.

RAJ SHAMANI: (00:06:24 – 00:06:24): Yeah.

SUMANT SINHA: (00:06:25 – 00:07:07): And it leads to the rise in ocean levels. Now, can you imagine if in Mumbai, which is where we are sitting right now, if sea levels suddenly went up by 1 meter or thereabouts? It would actually be very disastrous for a lot of the colonies or people living on the coastal areas and so on.

Secondly, it begins to change weather patterns. What happens if there was a disruption because of this higher temperature on the monsoons? It would impact India’s entire agricultural production. If there’s also higher temperature, it would start melting the glaciers faster than expected, which might lead to sudden flash floods at higher frequency than expected.

RAJ SHAMANI: (00:07:07 – 00:07:08): It’s already happening.

SUMANT SINHA: (00:07:08 – 00:09:18): It’s already happening. And then eventually, when all the glaciers run dry, then what happens to our perennial rivers, the mighty Ganga and Yamuna and all those rivers that are part of India’s history and tradition and religion and that feed into the Indo-Gangetic Plain? So the costs of this change are not very well understood and can be absolutely disastrous, especially for a country like India, which has such a vast number of people.

Now, the world as a whole recognized this and said, “You know what, we got to do something about this problem, because if this continues unchecked, then it can be really, really bad for the world as a whole.” Plus, it’ll lead to migration of people. Wars could get fought. So all sorts of consequential changes that we can’t even imagine right now.

And there’s this UN, United Nations group that essentially said that if temperatures change by more than 1.5 degrees centigrade, it’s going to lead to irreversible changes in the world. And therefore, we must all battle together and keep temperature change below 1.5 degrees centigrade. And so various agreements were arrived at between all the world’s countries to mitigate carbon emissions.

Now, so question was how to do it. How do you mitigate carbon emissions? Because if the whole world’s economies are based on carbon emissions because of fossil fuel usage, then how do you suddenly say, “You know what, no more carbon emissions”?