HOUSTON INNOVATORS PODCAST EPISODE 15

Houston solar energy exec shines light on company growth and IPO

John Berger, CEO of Houston-based Sunnova, is this week's Houston Innovators Podcast guest. Courtesy of Sunnova

It was all about the timing for John Berger, founder and CEO of Sunnova, a Houston-based residential solar energy company.

When he founded his company in 2012 in Houston, solar energy wasn't the trendy sustainability option it is today, but Berger saw the potential for technology within the industry. So, with a lot of perseverance and the right team behind him, he scaled Sunnova through nationwide expansion, billions of money raised, and a debut on the stock market last July — something that also happened with great timing.

About 72 hours after Sunnova went public last July, the Federal Reserve System announced it was going to cut rates. Additionally, Sunnova's IPO occurred ahead of WeWork's failed IPO.

"We went public in a market that still isn't back open again, I think, for IPOs," Berger says on this week's episode of the Houston Innovators Podcast. "We had pretty good timing when we went out the door."

However great the timing was, Sunnova's success is built on the hard work and skills of the company's employees, Berger explains on the podcast, and now running a public company requires a dynamic leader.

"I really look at myself and how I can change myself," Berger says. "I'm a different CEO today than I was 12 months ago, and hopefully I'll be a different CEO in 12 months, because the company demands it."

In the episode, Berger lifts the curtain on Sunnova's IPO, explains where he sees the solar energy industry headed, how battery storage technology has evolved, and why he's not worried about who ends up in the White House. Listen to the full episode below — or wherever you get your podcasts — and subscribe for weekly episodes.


Alex Robart, CEO of Ambyint, joins the Houston Innovators Podcast to discuss his plans to grow his company. Photo courtesy of Ambyint

After years of having to educate potential customers about the game-changing technology that artificial intelligence can be, Alex Robart, CEO of Ambyint, says it's a different story nowadays.

"We're seeing our customers spend a little more time understanding AI," Robart says on this week's episode of the Houston Innovators Podcast. "More and more boards of mid-sized [exploration and production companies] are challenging their executive teams to do something with AI."

Ambyint, a Calgary-based energy tech startup with its sales and executive teams based in Houston, uses AI to optimize well operations — Robart describes it as a Nest thermostat but for oil rigs. On average, 80 percent of wells aren't optimized — they are either running too fast and not getting enough out of the ground or running too slow and wasting energy, Robart says.

Recently, Ambyint closed its series B investment round at $15 million led by Houston-based Cottonwood Venture Partners led the round with contribution from Houston-based Mercury Fund. Robart says these funds will go to growing their technology to work on a greater variety of wells as well as hire people in both the Canada and Houston offices.

Robart runs Ambyint with his twin brother Chris, who serves as president of the company. The pair have long careers as serial entrepreneurs and even run an energy tech investment company, called Unconventional Capital. Between the two shared companies, the brothers have their own niches.

"We've been really thoughtful about ensuring that we take on different portfolios — we don't really own things jointly. That's been really helpful for us to carve out our own spheres that we own," Robart says."Chris has really become our lead customer-facing person on all things new products."