
Reactor Podcast
Reactor – The Podcast for Deeptech & Climate Tech Mission-Driven Founders
Reactor is where ambitious founders and industry leaders share the real stories behind scaling deeptech & climate tech impact-driven companies. Hosted by Jérôme Gilleron, this podcast dives deep into the challenges, strategies, and breakthroughs that drive profitable and cashflow-positive growth in climate tech, deeptech, and sustainability.
Through candid interviews with startup founders, scale-up executives, and industry experts, we explore:
✅ How to scale mission-driven businesses without burning out
✅ Fundraising, sales, and growth strategies for impact startups
✅ Lessons from leaders who’ve built and scaled industry-defining companies
Whether you're a founder, investor, or operator in the climate tech and deeptech space, Reactor brings you actionable insights to fuel your growth.
🎧 Subscribe now and turn your vision into reality!
👉 Available on Spotify, Apple Podcasts, YouTube, and your favorite podcast platforms.
Reactor Podcast
This city ski slope heats and powers 150,000 people—by burning their trash.
This city ski slope heats and powers 150,000 people—by burning their trash.
It sits on top of Copenhagen’s waste-to-energy plant, CopenHill.
In the late 2000s, the city wanted to shut down coal but still had 440,000 tons of non-recyclable waste to deal with every year.
Instead of burying or exporting it, they turned it into energy.
The challenge: build an incinerator that’s clean, efficient, and embraced by locals.
Danish architects BIG—Bjarke Ingels Group proposed something radical: make it visible, fun, educational, and a true public place.
Enter CopenHill (opened 2017): a sharp, industrial building with high-performance filters to limit emissions.
On the roof: a 400 m ski slope, an 85 m climbing wall, hiking trails, and a 10,000 m² green roof.
It reflects Copenhagen’s ambition to lead on urban sustainability.
CopenHill doesn’t hide waste. It shows it, treats it, and transforms it.
Today, CopenHill =
♻️ 440,000 tons of waste transformed each year
🏠 Heat & power for 150,000 residents
🌱 A green roof, sports, and public space on top of an industrial plant
Would you ski on a power plant?
#climatetech #wastetoenergy #urbaninnovation #CopenHill #Copenhagen #BIG #architecture #sustainability #deeptech #Reactor