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- Per-Episode Audience
Est. listeners per new episode within ~30 days
25,001 - 50,000 - Monthly Reach
Unique listeners across all episodes (30 days)
75,001 - 150,000 - Active Followers
Loyal subscribers who consistently listen
15,001 - 40,000
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On the show
From 11 epsHosts
Recent guests
Recent episodes
303: Karl Rábago and the Internet of Electricity
Apr 29, 2026
54m 48s
302: The Future of Food with Nona Yehia
Apr 15, 2026
41m 26s
301: Talking Donuts & Batteries with Ricky Roy and Ryan Inis Hughes
Apr 1, 2026
1h 11m 56s
300: Tasty, Solid State Donuts
Mar 25, 2026
27m 30s
299: Making Connections with Alec Watson
Mar 18, 2026
1h 01m 45s
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 4/29/26 |  303: Karl Rábago and the Internet of Electricity✨ | internet of electricityelectrical grid+3 | Karl Rábago | Acast | — | internet of electricityelectrical grid+3 | — | 54m 48s | |
| 4/15/26 |  302: The Future of Food with Nona Yehia✨ | vertical farmingtechnology+3 | Nona Yehia | Vertical Harvest | — | vertical farmingNona Yehia+3 | — | 41m 26s | |
| 4/1/26 |  301: Talking Donuts & Batteries with Ricky Roy and Ryan Inis Hughes✨ | batteriestechnology+4 | Ricky RoyRyan Inis Hughes | Donut LabTwo Bit Da Vinci+2 | — | Donut Labbatteries+4 | — | 1h 11m 56s | |
| 3/25/26 |  300: Tasty, Solid State Donuts✨ | solid state batteriesYouTube collaboration+3 | — | Donut LabYouTube+2 | — | solid state batteriesDonut Lab+3 | — | 27m 30s | |
| 3/18/26 |  299: Making Connections with Alec Watson✨ | future techcurrent trends+3 | Alec Watson | TechnologyConnections | — | technologytrends+3 | — | 1h 01m 45s | |
| 3/11/26 |  298: Why Waiting for Better Solar Costs You More✨ | solar technologycost analysis+3 | — | YouTubeUndecided with Matt Ferrell+1 | — | solartechnology+4 | — | 23m 42s | |
| 3/4/26 |  297: Heat Pump Comparison & Paul Braren Interview✨ | heat pumpstechnology comparison+4 | Paul Braren | TinkerTry.comUndecided with Matt Ferrell+1 | — | heat pumpcomparison+5 | — | 49m 44s | |
| 2/25/26 |  296: Flywheels! Getting All Spun Up✨ | flywheelsmechanical energy storage+3 | — | Two Bit DavinciUndecided with Matt Ferrell+1 | — | flywheelsmechanical energy storage+3 | — | 20m 39s | |
| 2/18/26 |  295: Why Aluminum Batteries?✨ | Aluminum batteriesBattery technology+3 | — | Undecided with Matt FerrellAcast+1 | — | Aluminum batteriesbattery technology+3 | — | 30m 15s | |
| 2/11/26 |  294: Heat Pump: Scams?✨ | Heat Pumps3D Printing+3 | — | YouTubeUndecided with Matt Ferrell+1 | — | Heat Pumps3D Printing+3 | — | 42m 28s | |
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| 2/4/26 |  293: Sodium Battery Fade✨ | sodium batterieslithium prices+3 | — | Undecided with Matt FerrellAcast | — | sodium batterieslithium prices+3 | — | 38m 42s | |
| 1/28/26 |  292: Move Over Perovskite - There’s a New Solar Kid in Town | https://youtu.be/3fntze01h_kMatt and Sean talk about a new material we might see in solar panels, and Matt’s invasion on Hank Green.Watch the Undecided with Matt Ferrell episode, Why This Solar Breakthrough Matters More Than Perovskite https://youtu.be/F_OPrOpccJs?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(16:23) - - Kesterite DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 1/21/26 |  291: CES 2026 Roundup | https://youtu.be/iSGqe9lefQIMatt and Sean talk about Matt’s CES 2026 visit, the good, the bad, the funny … including Donut Labs solid state battery.Watch the Undecided with Matt Ferrell episode, The Most Controversial Battery at CES 2026 https://youtu.be/Kt4c0o_3eyY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(12:17) - - CES 2026 DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 1/7/26 |  290: State of Perovskite Solar Roundup | https://youtu.be/SrkuzIo1liMMatt and Sean talk about the current status of perovskite solar progress, plus your responses to our previous episodes.Watch the Undecided with Matt Ferrell episode, What Solar’s 2025 Breakthroughs Mean for 2026 https://youtu.be/FffKMMnisu4?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(15:00) - - State of Solar DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 12/17/25 |  289: Salty AND Sweet? Desalination + Power Plants | https://youtu.be/PA2Wc_pxZ6YMatt and Sean talk about desalination and osmotic power production, plus your responses to our previous episodes.Watch the Undecided with Matt Ferrell episode, The Ocean's Invisible 15,000 TWh Goldmine https://youtu.be/kko09WIC6yc?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(20:20) - - Desalination and Osmotic Power DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 12/10/25 |  288: Perovskite? All Right! | https://youtu.be/HjYEgF598CIMatt and Sean talk about perovskite solar panels, silver prices, and other new (old) issues.Watch the Undecided with Matt Ferrell episode, How This Perovskite Breakthrough Could Change Solar Forever https://youtu.be/8Eh9m4U7GGk?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(22:00) - - Perovskite DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 12/3/25 |  287: AI’s Impact on our Electric Bills | https://youtu.be/kWC8Cylbu5AMatt and Sean talk about the impact of AI on our electric bills and more.Watch the Undecided with Matt Ferrell episode, How AI is Destroying Your Electric Bill https://youtu.be/n8m1BCzvGCA?list=PLnTSM-ORSgi7oiN-erZtwugd0muTdQXnU(00:00) - - Intro & Feedback(09:03) - - AI Costs DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 11/19/25 |  286: Plastic Recycling Advancements | https://youtu.be/t6Lc9WS60vAMatt and Sean talk about recycling plastic (will we ever get there?), simple home energy solutions (insulation!), and more.Watch the Undecided with Matt Ferrell episode, The Recycling Breakthrough That Doesn't Need Sorting https://youtu.be/D9Hd4KMoxds(00:00) - - Intro & Feedback(16:21) - - Plastic Recycling DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 11/5/25 |  285: Heat Pump It Up! Geothermal 2 Years Later | https://youtu.be/FmTo8ZkfZ68Matt and Sean talk about Matt’s geothermal heat pump experience, digging wells, and the meaning of “young.”Watch the Undecided with Matt Ferrell episode, How My Geothermal Heat Pump Really Performed (2 Years) https://youtu.be/DTb7TKJzr5g?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro(05:22) - - Feedback(17:33) - - 2 Years of Geothermal DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 10/22/25 |  284: Shocking Zinc Battery News | https://youtu.be/Xx9sCiVZxJ4Matt and Sean talk about a change in what research says is good for zinc batteries, and more topics from last week's episode. Watch the Undecided with Matt Ferrell episode, The Surprising Battery Discovery No One Saw Coming https://youtu.be/GRumW9JzGbc?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(21:31) - - Zinc Batteries DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 10/1/25 |  283: Sweating Solar Panels, Upgrade Woes, and More | https://youtu.be/Ay_Yr2aI9twMatt and Sean talk about increasing solar power efficiency by making the panels (ew) sweat, and more topics from last week’s episode.Watch the Undecided with Matt Ferrell episode, How This Hydrogel Gives Us 12% More Solar Efficiency https://youtu.be/yWMxM8YQcN4?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(16:39) - - Solar Panel Hydrogel DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 9/24/25 |  282: Bifacial Solar Panels Advacements | https://youtu.be/Ulwh9PMxI_MMatt and Sean talk about solar power generation from two-faced panels … no, not lying panels, but bifacial solar panels with some big updates that should help them become more common.Watch the Undecided with Matt Ferrell episode, How the Back of a New Solar Panel Just Changed Everything https://youtu.be/tQoV4Qj0NQs?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(12:32) - - Bi-facial Solar DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 9/10/25 |  281: Digitizing Home Electrification - Zero Homes CEO Grant Gunnison | https://youtu.be/wcTP2wXrlHMMatt interviews Grant Gunnison, CEO and founder of Zero Homes, about their innovative approach to home electrification. Grant shares how his background as an MIT engineer and NASA contractor, combined with experience running his family's contracting business, led him to create a platform that uses smartphone photos and AI to generate accurate home energy assessments and quotes without requiring in-person sales visits. They discuss the challenges of retrofitting existing homes, why contractors resist new technologies, and how Zero Homes is expanding across multiple states while partnering with utilities to streamline the path from energy audit to installation. (00:00) - Intro(03:12) - Grant Gunnison InterviewYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 9/3/25 |  280: Seaweed? More like See Opportunities! | https://youtu.be/eUVGEhhU5jMMatt and Sean talk about taking an unexpected environmental blight (Sargassum), and turning it into a renewable, useful (and profitable) resource.Watch the Undecided with Matt Ferrell episode, This Seaweed Was a Caribbean Disaster, Now It's Gold https://youtu.be/iAYiUN4gvi4?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro(02:11) - - Previous Episode Feedback(10:31) - - Sargassum DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
| 8/27/25 |  279: How the U.S. is Losing the Renewable Race | https://youtu.be/hP682UrQY_EMatt and Sean talk about the Big Beautiful Bill, what its long term impacts might be on the renewable energy space, and how easy it might be to go in another direction.Watch the Undecided with Matt Ferrell episode, How the U.S. Just Handed the Renewable Future to China https://youtu.be/2tNp2vsxEzk?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback(14:20) - - The BBB DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information. | — | ||||||
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Chart Positions
1 placement across 1 market.
Chart Positions
1 placement across 1 market.