
Still To Be Determined
Join Matt Ferrell from the YouTube Channel, Undecided, and his brother Sean Ferrell as they discuss electric vehicles, renewable energy, smart technologies, and how they impact our lives. Still TBD continues the conversation from the Undecided YouTube channel.
Latest episodes

Apr 23, 2025 • 22min
263: A Very Magnetic Heat Pump - Julie Slaughter Interview
https://youtu.be/dnRSrU8GwmcMatt had the chance to chat with Julie Slaughter from the Ames National Laboratory about their research into magnetocalorics (using magnets for heating and cooling). Do you think this is an attractive idea? Or does it repulse you?Watch the Undecided with Matt Ferrell episode, How Magnetic Cooling Is Breaking All the Rules https://youtu.be/qcscUoP8FNk?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro
(01:14) - - Dr Julie Slaughter Interview
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf
★ Support this podcast ★

Apr 16, 2025 • 20min
262: No More Lithium Batteries? Looks Good on Paper!
https://youtu.be/LOuj1LUNijUMatt and Sean talk about a move away from lithium by a major battery manufacturer, and a paper battery that might be the sheet. Why the interest in these new batteries?Watch the Undecided with Matt Ferrell episodes;Why This Paper Battery is Better Than You Think https://youtu.be/R31v28uS_8k?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQWhy the Biggest Battery Company is Betting Against Lithium https://youtu.be/7yhcyn_4cUc?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro
(02:35) - - Paper Battery Discussion
(09:04) - - Sodium-Ion Battery Discussion
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf
★ Support this podcast ★

Apr 2, 2025 • 36min
261: Sulfur So Good: Talking AI & Lithium-Sulfur Batteries
Dive into the world of AI and its impact on creative work! The hosts tackle ethical concerns while sharing funny personal automation anecdotes. Discover the revolutionary potential of lithium-sulfur batteries as they discuss recent breakthroughs and environmental benefits. The conversation also addresses electric vehicle adoption, focusing on charging efficiency and overcoming range anxiety. Plus, enjoy some light-hearted moments about quirky pronunciations and listener engagement.

Mar 26, 2025 • 26min
260: Icy Heat - Talking Ice Source Heat Pumps
https://youtu.be/Tq3IS1J3LyoMatt and Sean talk about using ice to generate heat. Yes, it’s actually a thing, but does it make sense for the future of heating?Watch the Undecided with Matt Ferrell episode, How Can Ice Heat Your Home? Ice Source Heat Pumps! https://youtu.be/2S5NdYso73M?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro
(03:24) - - Migraine Tracking
(06:17) - - Previous Episode Feedback
(15:33) - - Ice Source Heat Pump Discussion
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf
★ Support this podcast ★

Mar 19, 2025 • 26min
259: Flow Battery Developments - Old Tech is Taking Off
https://youtu.be/XoHn9-42DI8On today’s episode Matt & Sean are talking about flow batteries and how this old tech is finally starting to take off. But does it actually have a shot?Watch the Undecided with Matt Ferrell episode, Why Isn’t This Revolutionary Battery Everywhere? https://youtu.be/3_NCnxO1KLY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback
(11:55) - - VRFB Discussion
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf
★ Support this podcast ★

Mar 12, 2025 • 37min
258: Recycling Renewables - Problem Solved?
https://youtu.be/6GImikPccQYMatt and Sean talk about how recycling renewable energy tech is a major step forward, and what comes next. Do we have this problem solved?Watch the Undecided with Matt Ferrell episode, How We Solved Renewables BIGGEST Problem https://youtu.be/j1HWNXmmld4?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback
(13:49) - - Renewables Biggest Problem Discussion
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf
★ Support this podcast ★

Mar 5, 2025 • 27min
257: Let’s Talk About Tech - Battery “Breakthroughs”
Matt and Sean talk about new battery research, potential shifts in cost, and why we’re having this conversation in the first place.Watch the Undecided with Matt Ferrell episode, Why This Ultra Cheap Battery Breakthrough Matters https://youtu.be/qZ8z5tFzuIw?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback
(10:04) - - Battery Breakthrough Discussion
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf
★ Support this podcast ★

Feb 26, 2025 • 32min
256: Props to Canada - Building Wind Turbines
Discover the fascinating logistics behind constructing a wind farm in Canada. The hosts tackle the impact of wind turbines on wildlife and explore innovative heating solutions like ice source heat pumps. They share personal experiences from a wind farm visit, celebrating teamwork and scenic landscapes. The conversation also dives into the creative uses for discarded ice and advancements in wind energy technology, including safety enhancements for bird populations.

Feb 19, 2025 • 38min
255: Ice Source Heat Pump?
Professor Seamus Garvey, a dynamics expert researching energy storage, and Dr. Ramin Mehdipour, a renewable energy researcher, dive into the fascinating world of ice source heat pumps. They reveal their innovative approach to using the UK’s natural gas pipelines for transporting water, which transforms into ice to generate heat. The discussion highlights the technical challenges, engineering design intricacies, and the potential to shift toward eco-friendly heating solutions like district heating, all while inspiring the next generation of energy innovators.

5 snips
Feb 12, 2025 • 46min
254: Unlocking the Lithium Supply Chain - Teague Egan Interview
Teague Egan, Founder and CEO of EnergyX, discusses innovative direct lithium extraction technology aimed at enhancing environmental sustainability. He shares the evolution of EnergyX into a resource owner and producer, focusing on new projects and strategic partnerships, including a significant investment from GM. Egan also details a unique crowdfunding initiative empowering individual investors, and explores the impact of the Inflation Reduction Act on lithium mining. He lays out ambitious goals for commercial lithium production by 2028 while offering insights for aspiring entrepreneurs in the sustainable tech space.
Remember Everything You Learn from Podcasts
Save insights instantly, chat with episodes, and build lasting knowledge - all powered by AI.