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A smart panel adds a few thousand dollars to an already expensive project, so Matt asks the awkward question straight out. Reynolds Holmes, VP of Product at SPAN, answers with a test: will you add an EV, a battery, a heat pump, or a new AC in the next ten years? If yes, he argues the future proofing pays for itself, and he explains why judging the decision on twelve months of old utility bills is backwards math. Matt also pushes on privacy, local API access, and what happens to your hardware if SPAN ever disappears. Watch the Undecided with Matt Ferrell episode, Why is Disney World Grinding Glass Into Sand? https://youtu.be/o5AeXRChgVQ?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ Chapters: 00:00: Intro02:49: Reynold’s Holmes Interview47:13: FeedbackWatch on YouTube: https://www.youtube.com/watch?v=evNiSMCU0lg Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on: Mastodon - https://mastodon.social/@mattferrell Bluesky - https://bsky.app/profile/mattferrell.bsky.social Undecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Perovskite solar has promised a revolution for over a decade, so is it finally real? Matt and Sean talk with Joel Jean, co-founder and CEO of Swift Solar, the US startup spun out of MIT and Stanford. Joel explains how stacking a perovskite film on top of silicon lifts a solar cell's efficiency ceiling from 30 percent to about 45 percent. He also breaks down the three "tooth fairies" every new solar technology has to solve: performance, lifetime, and cost. So is perovskite tandem solar finally ready for your roof? Or is 25 year durability still one miracle away? Chapters: 00:00: Intro03:20: Joel Jean Interview41:02: The Super Soaker MailbagWatch on YouTube: https://www.youtube.com/watch?v=vtmX0st3uOk Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Most smart homes hand your house to Big Tech. Home Assistant is proof they don't have to. Matt and Sean sit down with Paulus Schoutsen, the software engineer who started Home Assistant, the largest open-source smart home platform in the world, now running in over 2 million homes. It runs locally, it keeps your data inside your house, and it doesn't stop working the day a company decides to shut off its servers. We get into why Paulus gave the whole project away to a nonprofit instead of selling it, how the energy dashboard turns your solar and battery into something genuinely useful, and whether a normal person can actually run this or if it's still a power-user thing. So is the open, local smart home finally good enough to replace Alexa and Google? Or is handing your house to Big Tech still the path of least resistance? Chapters: 00:00: Intro01:20: Paulus Schoutsen52:08: Feedback - Updates56:20: Feedback - What Happens with the Chlorine?59:24: Feedback - Climate Change01:01:00: Feedback - PoutineWatch on YouTube: https://www.youtube.com/watch?v=JPEtYL9F0Vk Mentioned in this episode: Home Assistant (free, open source): https://www.home-assistant.io/ Nabu Casa / Home Assistant Cloud (~$80/yr, funds the mission): https://www.nabucasa.com/ Open Home Foundation: https://www.openhomefoundation.org/ Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on: Mastodon - https://mastodon.social/@mattferrell Bluesky - https://bsky.app/profile/mattferrell.bsky.social Undecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

The inventor of the Super Soaker, Dr. Lonnie Johnson, joins Matt to talk about his most ambitious project yet: the JTEC, a heat engine with no moving parts that converts low-grade waste heat straight into electricity. They get into how it actually works, why Johnson thinks it could run far more efficiently than what we use today, and the long road from a 2003 idea to the first commercial unit. Plus how a billion-dollar water gun quietly funded a quarter-century of clean-energy research. Chapters: 00:00: Intro05:06: Dr. Lonnie Johnson Interview32:36: Previous Episode FeedbackWatch on YouTube: https://www.youtube.com/watch?v=LhbPajWdgUk Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt sat down with Jorge Diaz Schneider, CEO of Ion Storage Systems, to talk about their anode-less, ceramic-based solid-state battery that doesn't swell or need pressure to work. We get into why they're chasing consumer electronics instead of EVs, the new continuous manufacturing line they just fired up, and why so many solid-state startups have over-promised and flamed out. It's an honest look at where this technology really stands in 2026 … and where it's headed. This presentation is for informational and technical discussion purposes only and does not constitute an offer to sell, or a solicitation of an offer to buy, any securities or a recommendation regarding any investment, financing or strategic transaction. Statements regarding future product development, commercialization, market opportunities, manufacturing scale-up, customer adoption or future performance are forward-looking, subject to risks and uncertainties, and may differ materially from actual results. The company undertakes no obligation to update such statements except as required by law. Chapters: 00:00 - Intro01:24 - Jorge Diaz Schneider InterviewWatch on YouTube: https://www.youtube.com/watch?v=XbnuBbvX5_U Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt and Sean talk to Dave Borlace from the YouTube channel, Just Have a Think, to discuss the current state of the renewable energy transition in the UK and the US. Dave’s YouTube channel: https://www.youtube.com/@JustHaveaThink Chapters: 00:00: Intro01:47: Dave Borlace Interview59:15: Previous Still TBD Episode Feedback01:02:44: Undecided Episode FeedbackWatch on YouTube: https://www.youtube.com/watch?v=0bw2IU73RG4 Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt and Sean talk to Zack Nelson of JerryRiggedEverything about building a new wheelchair manufacturing business, solar DIY, and the history and future of his Youtube channel. Chapters: 00:00 - Intro02:08 - Zach Nelson Interview37:32 - Supercritical CO2 Turbines DiscussionWatch on YouTube: https://www.youtube.com/watch?v=quA0gBAFEQk Support the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/@stilltbd YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt and Sean talk to Karl Rábago about the internetification of the electrical grid, and what it means for the future of owning solar panels and energy. 00:00 - Intro11:26 - Karl Rábago InterviewSupport the show directly: https://stilltbd.fm/join/ Audio version of the podcast: https://stilltbd.fm YouTube version of the podcast: https://www.youtube.com/stilltbdpodcast YouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/join Get in touch: https://stilltbd.fm/contact/ Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.social Undecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Watch on YouTube: https://www.youtube.com/watch?v=gfCZL-vwWtA Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/nR8qn3cD1jQ Matt and Sean talk to Nona Yehia (Vertical Harvest) about vertical farming, technological “growth”, and the future of food.  Watch the Undecided with Matt Ferrell episode, Why This Vertical Farm is 500x More Efficient Than Farming https://youtu.be/8sOEB2m0m9Y?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ (00:00) - - Intro(00:45) - - Nona Yehia Interview(37:50) - - Vertical Harvest FeedbackYouTube version of the podcast: https://www.youtube.com/stilltbdpodcast Get in touch: https://undecidedmf.com/podcast-feedback Support the show: https://pod.fan/still-to-be-determined Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf Undecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★ Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/HicyIaKqRgk Matt talks with Two Bit Da Vinci and Ziroth about Donut Lab’s new battery, the controversy around it, and what they think it actually might be. Watch the Undecided with Matt Ferrell episode, The Breakthroughs My Net Zero Home is Missing https://youtu.be/hb2x5VcUT0I?list=PLnTSM-ORSgi7FwYRnWkpCSkAeFOzrgh5h (00:00) - - Intro(01:46) - - Donut Lab Conversation(01:01:40) - - Home Regrets DiscussionYouTube version of the podcast: https://www.youtube.com/stilltbdpodcast Get in touch: https://undecidedmf.com/podcast-feedback Support the show: https://pod.fan/still-to-be-determined Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf Undecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★ Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/f67J9QO5LPY Matt and Sean talk about Donut Lab's solid state batteries, connecting with other YouTubers, and your questions.  Watch the Undecided with Matt Ferrell episode, Why Everyone's Wrong About This Solid-State Battery https://youtu.be/C8ljwigh9jA?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ (00:00) - - Intro & Feedback(14:26) - - Donut Labs Solid State Battery DiscussionYouTube version of the podcast: https://www.youtube.com/stilltbdpodcast Get in touch: https://undecidedmf.com/podcast-feedback Support the show: https://pod.fan/still-to-be-determined Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf Undecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★ Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/ve_k8pNY1sQ Matt and Sean talk with Alec Watson (TechnologyConnections) about future tech, current trends and dead ends, and why dishwashers are so fascinating. (00:00) - (00:00) - - Intro(02:36) - - TechnologyConnections InterviewYouTube version of the podcast: https://www.youtube.com/stilltbdpodcast Get in touch: https://undecidedmf.com/podcast-feedback Support the show: https://pod.fan/still-to-be-determined Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf Undecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★ Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/lnu76C5Qd68 Matt and Sean talk about whether it’s a good idea or not to wait for next gen solar technology, or just pull the trigger and get what’s available today. Watch the Undecided with Matt Ferrell episode, Why Waiting for Better Solar Costs You More https://youtu.be/w2r9_0NxTW8?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ (00:00) - - Intro & Feedback(13:19) - - To Perovskite or Not Perovskite DiscussionYouTube version of the podcast: https://www.youtube.com/stilltbdpodcast Get in touch: https://undecidedmf.com/podcast-feedback Support the show: https://pod.fan/still-to-be-determined Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf Undecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★ Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/v1o7RY43K-E Matt and Sean talk about heat pump comparisons, and a full long-form discussion with Paul Braren from TinkerTry.com Watch the Undecided with Matt Ferrell episode, Did I Get the Wrong Heat Pump: Geothermal vs Air Source https://youtu.be/CPwQTUaU-jI?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ A couple of posts about our heat pump comparison on TinkerTry.com:https://tinkertry.com/planning-for-heat-pump-comforthttps://tinkertry.com/geothermal-vs-air-source-heat-pumps-feat-undecided-and-tinkertry (00:00) - - Intro(02:35) - - Undecided Feedback(09:23) - - Paul Braren InterviewYouTube version of the podcast: https://www.youtube.com/stilltbdpodcast Get in touch: https://undecidedmf.com/podcast-feedback Support the show: https://pod.fan/still-to-be-determined Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf Undecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★ Hosted on Acast. See acast.com/privacy for more information.