By Jacob Marre, Student in the M.S. in Sustainability Management Program, Columbia University School of Professional Studies
Travis Bradford came to energy by an unusual route.
He grew up in Norcross, a fast-growing suburb northeast of Atlanta, in the 1970s and ’80s — a math prodigy who left high school for Georgia Tech at 16 to study aerospace engineering. Soon after, he switched to finance and rose fast. By 25, he was a private equity partner; by 29, the chairman of a publicly traded company. Then, at 30, he walked away from it all.
What followed was a two-year sabbatical backpacking across Asia and Europe that changed the course of his life. He came home convinced the world’s energy system was on the verge of transformation, a thesis he laid out in his 2006 book, “Solar Revolution,” and later in a comprehensive MIT Press textbook, “The Energy System.”
Over the last 20 years, Bradford has watched that transition unfold, not just in boardrooms, but in the countryside and in people’s homes. The former private equity partner, who now lectures on energy at Columbia University, is confident that the energy transition isn’t just probable: it’s inevitable.
An edited and condensed version of our conversation follows.
You weren’t always in the energy space. Could you tell me about your career before energy?
I had an entire career in private equity for eight or nine years. I spent three years at an LBO fund, then moved to the hedge fund Steel Partners. I was only there five years, but in that time we did well.
I ended up as the chairman of an aircraft parts manufacturer when I was 29 years old. I got to work on all kinds of cool, interesting deals. But then in 2003, I just decided it was time to move on. I spent the next two years traveling and thinking about the world and all its problems.
Tell me about this sabbatical.
For the first year, I was backpacking across Asia. Basically, the goal was to go from Tokyo to Singapore via Mount Everest without taking any planes.
During that year, I developed a theory of change about the world: resources drive economic behavior. Energy is the first among equals in resources, and the energy system therefore has certain constraints and pressures to evolve. I realized that the root of a lot of our problems was resources, and mostly the energy resources. That’s when I came up with the insights that led to [my book] “Solar Revolution.”
Was there any specific event or moment that gave you the inspiration for “Solar Revolution”?
Yeah. Funny enough, it was the day after I passed Mount Everest. We were driving toward Nepal, and we stopped in a village high in the mountains.
We were having a great time meeting the local Tibetans, but we needed food. They didn’t have restaurants, so we went to someone’s house, and they fed us. I went to wash up in the back of their house, and I looked out the back window and saw a solar array.
There we were, on the roof of the world — nothing but sun and mountaintops — and here is this massive solar array. There were probably over 100 solar modules, a big trailer of charge controllers, and battery storage.
I thought, “This is amazing. Why isn't this everywhere?”
So after this experience, you began writing “Solar Revolution”?
I basically did all the research and wrote the first draft of “Solar Revolution” while riding around Europe in 2004, visiting places and going to conferences like the Bonn Climate Change Conference and the International Solar Energy Conference in Paris.
All of the research, knowledge, and insight I accumulated over that year, combined with my understanding of how capital flows, helped me understand why it wasn’t yet everywhere. I realized that risk and high costs were suppressing capital flow.
But the key insight was this: people weren’t going to do this because it was a good idea. They were going to do it because it was in their own interest. That’s the foundation I built everything on.
“Solar Revolution” came out in 2006, and much of what you predicted in it came true: the cost of solar is falling, faster even than you initially predicted. But now there’s the data center boom, tariffs, political backlash, and supply chain shocks. Are you confident we’ll successfully undergo this energy transition?
I am. But I paint with a pretty broad brush in “Solar Revolution” when I say the energy transition is inevitable. "Inevitable" isn't time-constrained, right? We’re in the messy middle of this transition right now, where real headwinds make it challenging.
The real problem is that we have two simultaneous, competing worldviews. In the first, the solar revolution continues apace: cheaper generation, more batteries, and the firming and capacity upgrades needed to carry it through to very high levels of penetration, first in electricity, then in transportation, buildings, and industry. Call it “the transition scenario.”
In the second, those technologies eventually hit a limit — the argument being that you can't run the world on solar because the sun doesn't always shine. So we still have to build out traditional utility infrastructure and keep burning hydrocarbons to keep the lights on. Call it “the incumbent scenario.”
If you try to deploy enough capital to fund both worldviews at once, you end up with a huge amount of duplicative investment, a big chunk of which gets underutilized. We'll overinvest in incumbent technologies out of fear, or get stymied by the misalignment between people's worldviews, and we won't do the transition quickly enough to capture the economic, environmental, and social benefits.
These are the same two worldviews that have been in contention since the dawn of the solar revolution. The incumbent camp has thrown up one conceptual obstacle after another: first, that solar would be too expensive, and now that solar is too unreliable. And yet the transition has moved further, faster, and cheaper than every argument thrown up against it.
So it’s going to take longer than we’d like; it’s going to be more expensive and involve more suffering than we’d like. But in the end, I expect that there’s absolutely nothing that’s going to stop the energy transition, driven predominantly — but not exclusively — by solar.
So our goal here is not to create the outcome. If the outcome is inevitable, our goal is to minimize the waste and inefficiency created by getting there. And so the job for folks who want to support the energy transition is to keep making the case — to push back on the idea that the transition is fundamentally limited. It’s incumbent on people who care about efficiency — who care about overall system outcomes — to keep fighting.
Views and opinions expressed here are those of the authors, and do not necessarily reflect the official position of Columbia University School of Professional Studies or Columbia University.
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