Episode 794

794: Solar Will Be 50% of Global Primary Energy by 2035 – Here’s How According to Birchy

Published on: 6th March, 2025

Solar’s growth isn’t just steady—it’s compounding. If current trends hold, half of the world’s energy could come from solar by 2035. That’s the prediction Andrew “Birchy” Birch has modeled using real-world data and the S-curve of technology adoption. He explains why mainstream forecasts underestimate solar, how exponential growth works in energy markets, and what policies must change to support a fully electrified economy.

Birchy is the CEO and co-founder of Open Solar, a free solar design and project management platform used by installers worldwide. A longtime solar industry pioneer, he previously co-founded Sungevity, one of the first online solar sales platforms, and has spent decades advocating for policies that expand solar access (like pushing forward the SolarAPP in the US). Now, he’s working with the Global Solar Council to push for an industry “Bill of Rights” that ensures fair energy market rules and a standardized approach to integrating solar into the grid. Want to hear and see the data supporting Birchy’s bold claim that Solar will be More than 50% of our primary global energy in just 10 years’ time?

Expect to learn:

  • Why the S-curve shows solar reaching 50% of global primary energy by 2035
  • How the U.S. solar market compares to the rest of the world
  • How SolarApp and permitting reform could unlock residential solar
  • Why tariffs and subsidies are distorting the solar market
  • How OpenSolar is making solar design software free for installers worldwide

If you want to connect with today's guest, you’ll find links to his contact info in the show notes on the blog at https://mysuncast.com/suncast-episodes/.

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Mentioned in this episode:

CPS July 2024 V2

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About the Podcast

SunCast
Your resource for developing a clean energy or climate tech career
Nico Johnson takes you into conversations with those at the forefront of Renewable Energy.

SunCast gives an inside look into what is happening in renewable energy. From conversations with the biggest Solar Panel manufacturers in the world to the small startups creating the future of renewable energy, such as carbon capture and battery technology breakthroughs.

SunCast is dedicated to providing the knowledge, research, tools and expert guidance you need to understand, grow and be ahead of the curve in the fastest-growing markets in the world.

Featuring over 600 conversations, Nico has interviewed people from Tesla, SolarCity, Trina Solar, Meyer Burger, Conergy, SunEdison, Energy Vault and even the US Government... to name a few. Covering topics such as Solar Power, Wind Energy, Batteries, Electric Vehicles, Carbon Capture, Finance, Hydrogen, and more.

You can watch SunCast on YouTube: https://www.youtube.com/@SunCastMedia

...or view the full archive of SunCast episodes here: https://mysuncast.com/suncast-episodes