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Simon Irish

Chief Executive Officer, Terrestrial

Search every verified Simon Irish interview, podcast appearance, and on-the-record quote — each transcript cross-checked by AI and human review to confirm speaker identity. Simon Irish, chief executive of Terrestrial Energy, appeared on the Nuclear Investing podcast in November 2025, where he discussed capital market dynamics in the nuclear sector and the strategic decisions behind his company's Integral Molten Salt Reactor (IMSR) design. He said that companies seeking commercial traction in the small modular reactor space now need to have laid groundwork roughly a decade in advance, including establishing a credible regulatory position, completing a design process, and building supply-chain relationships. He described the present period as an exciting time for the nuclear technology sector. Irish has previously stated that Terrestrial is targeting commercial deployment of its IMSR in the late 2020s, with a reactor that he said could produce power

Recent appearances

  • #2: How Big Capital Enters New Energy Frontiers — And Why Nuclear Is Next with Simon Irish

    November 06, 2025 · 📺 Nuclear Investing Podcast

    Terrestrial Energy CEO Simon Irish joins host Brennan Moore to explore the evolving landscape of nuclear capital markets, the strategic decisions behind molten salt reactor technology, and the critical path toward commercial deployment. With insights drawn from his unique blend of finance and nuclear industry experience, Simon sheds light on the challenges and opportunities shaping the future of nuclear energy innovation.

    Watch on YouTube ↗

  • The Power Hungry Podcast: Simon Irish

    February 22, 2022 · 📺 Robert Bryce

    Simon Irish is the CEO of Terrestrial Energy, a Canadian company that is developing a molten-salt reactor for commercial electricity generation. Irish explains why Terrestrial is seeking initial licensing in Canada instead of the U.S., why it may be another decade before his company can deploy its first commercial reactor, and why policy support for new nuclear reactors “needs to accelerate.” Thanks for checking out my channel. Please like and subscribe for more energy and power content. Subscribe to my Substack: https://robertbryce.substack.com The Power Hungry Podcast: https://open.sp…

    Watch on YouTube ↗

  • Terrestrial Energy's Simon Irish on the potential of their Integral Molten Salt Reactors

    November 18, 2021 · 📺 Trellis Group

    This video is sponsored by Terrestrial Energy. John Davies, Senior Vice President & Analyst at GreenBiz, interviewed Simon Irish, Chief Executive Officer at Terrestrial Energy, during VERGE 21 (October 25-28, 2021). View archived videos from the conference here: https://www.greenbiz.com/tag/verge-21... OUR LINKS Website: https://www.greenbiz.com/ Twitter:   / greenbiz   LinkedIn:   / gree.  . Instagram:   / greenbiz_group   Facebook:   / greenbiz  

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  • NBP Hotseat: Interview with Simon Irish, CEO, Terrestrial Energy

    December 09, 2020 · 📺 Nuclear Business Platform (NBP)

    Terrestrial Energy is a developer of Generation IV advanced nuclear power plants that use its proprietary Integral Molten Salt Reactor (IMSR) technology. IMSR technology represents true innovation in cost reduction, versatility and functionality of nuclear power plants. The firm is engaged with regulators and industrial partners to complete IMSR engineering and to commission the first IMSR power plants in the late 2020s. TIMESTAMPS: 0:50 - Background and history of Terrestrial Energy 05:30 - Overview of the Integral Molten Salt Reactor (IMSR) technology 07:50 - Expected commercialization time…

    Watch on YouTube ↗

  • Interview with Simon Irish, CEO of Terrestrial Energy at SInv 16

    November 24, 2016 · 📺 Climate Action

    Climate Action talked to Simon Irish, CEO of Terrestrial Energy at the Sustainable Investment Forum 2016 in New York.

    Watch on YouTube ↗

  • TC No. 19 • Simon Irish: Molten Salt Design in SMR Innovation

    October 28, 2016 · 📺 Keith Rodan

    Simon Irish, of Terrestrial Energy, at the 2015 Annual Small Modular Reactor Summit, with his talk: "The Value of Molten Salt Design in SMR Innovation". PLUS: Dr. Alexander Cannara at TEAC 4: "Linear No-Threshold Radiation Lies."

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  • Simon Irish - Value of Molten Salt Design in SMR Innovation

    April 26, 2015 · 📺 gordonmcdowell

    Simon Irish gives an investor's perspective on why Molten Salt Reactors inherent safety options are key to bringing Small Modular Reactor's "overnight capital cost" below that of coal. Simon Irish is chief executive, director and co-founder of Terrestrial Energy. http://TerrestrialEnergy.com/

    Watch on YouTube ↗

  • Simon Irish - Developed World Debt Levels Demand Power & Energy Revolution @ TEAC4

    February 19, 2013 · 📺 gordonmcdowell

    Policy choices have led to instability in the financial sector, a mountain of sovereign debt and an impairment in growth. For OECD nations to service this debt and maintain welfare commitments, a step change in growth is required. We need a profound revolution in the way power is generated and delivered to our economies - cheap power, modular power, clean power. We need a revolution in power innovation, we need a new steam engine. - Simon Irish http://ThoriumEnergyAlliance.com/

    Watch on YouTube ↗

The summary and quote tags on this profile are produced with AI assistance from verified, first-person interview transcripts, then checked by our team to confirm the speaker's identity and the accuracy of every quote. See how we verify →