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Home » The Thrilling Potential for Off-Grid Solar Energy: Amar Inamdar (Transcript)

The Thrilling Potential for Off-Grid Solar Energy: Amar Inamdar (Transcript)

Here is the full transcript of Amar Inamdar’s talk titled “The Thrilling Potential for Off-Grid Solar Energy” at TEDGlobal 2017 conference.

Listen to the audio version here:

TRANSCRIPT:

The Energy Crisis

There’s something really incredible happening. So there’s over a billion people who have no access to energy whatsoever across the world, 620 million of them here in Africa. It costs about 1,500 dollars to connect each household up to the grid. If you are going to wait for it, it takes about nine years, on average, and that feels like a lifetime when you’re trying to make that happen.

That’s kind of unbelievable, and it’s also unacceptable. So let’s do something about it. The lightbulb comes from this idea that you have an energy system that’s made up of the ideas of Tesla and the ideas of Thomas Edison. There was an evolution that said it’s not just about the lightbulb, it’s about the whole system, the whole energy system that goes with that lightbulb. And what happened in that gilded age was the creation of an industrial system that every country around the world has now started to emulate.

So to get to the appliances, you need to have power stations. From power stations, you need to have infrastructure, and that infrastructure takes you to the point of having electricity, and you get to the lightbulbs and the appliances that we all take for granted.

The Wireless Revolution

But the amazing thing, in a way, is that there’s a revolution happening in the villages and towns all around us here in East Africa. And the revolution is an echo of the cell phone revolution. It’s wireless, and that revolution is about solar and it’s about distributed solar. Photons are wireless, they fall on every rooftop, and they generate enough power to be sufficient for every household need.

So that’s an incredible thing. There’s also a problem with it. Up until now, the technology hasn’t been there to make it happen, and the mindset has been that we have to have the grid to provide industrial growth and let countries develop and create jobs and industrialize. So we’ve gotten ourselves to the point where actually the costs of building these grids and following that pattern of development are really unsustainable.

If you add up the deficits that all of the utilities run in Africa, sub-Saharan Africa, you get to a number of 21 billion dollars every year to maintain that system and keep it going. So an extraordinary amount of resources that’s been put in to creating a system that ultimately we will have to wait a very long time for. And when it comes, it often doesn’t come with sufficient robustness to allow us to go down that path to development. So what a shame.

Solar Power in Africa

But here’s what’s happening, and here’s the opportunity that I think we should all get excited about. So there’s a group of companies that have been chipping away at this problem over the last 10 years. And this group of companies have recognized the reality that there’s a great big nuclear reactor up there in the sky, and that Africa is more endowed with that solar power that comes from the sky, the sun, than almost any other continent.

So the opportunity has come to convert some of that solar power, wireless power, into energy at the household level. And three things have happened at the same time. First, the costs of solar productivity have come down. So putting a panel on your roof and generating power from it, that cost has absolutely collapsed over the last 30 years, and it’s gone down by 95 percent.

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Second, the appliance network. So the group of appliances that we’ve all gotten used to, we all want and we all need, we all see as part of our everyday lives that give us health and security, those appliances have come down in cost. So if you take the LED lightbulb, for example, a very simple thing, they’re now 85 percent less than they were five years ago, and their efficiency, when you compare them to an incandescent bulb, like the lightbulb I showed in the previous slide, is incredible. They give you 10 times the amount of light, and they last 30 times as long.

And then the last thing that’s happened is of course the cell phone revolution, so we’re piggybacking off the cell phone revolution, and we can now make decentralized customers make small payments for bits of equipment and appliances where actually they’re now affordable. We can pay them off over a daily or a weekly schedule. So this is an incredible change in the economy that’s happening, and it’s really opened up something very, very innovative.

Meeting Susan

So I’m going to introduce you to a lady I met with last week. Her name’s Susan. It may not look like it, but Susan is a representative of a $27 billion market. 27 billion dollars is what people like Susan spend every year on cell phone charging, flashlight batteries, and kerosene to light their homes. So Susan is a proud owner of a small solar system. It’s a kit rather than a planetary thing, so a small solar system, and her small solar system allows her to have a couple of lightbulbs. And she’s made this transition, this jump, from kerosene into light.

She has four or five lights and a radio. It’s fantastic, and she talks about it. She talks about her kids doing homework at night because she has light. I’m not sure what the kids feel about that. She talks about the fact that she can go out at 4am and look after the cows, and she’s not so worried, but also, with a little twinkle in her eye, she talks about how light turns her house into a home at night. She’s not scared of her own house at night, because it has light in it, and I thought that was amazing.

So Susan does something that many customers of these companies that I talked about do, and she forces us to innovate.