How 40-Ton Spinning Wheels Are Saving the Power Grid

How a Mechanical Battery Could Prevent Deadly Blackouts. Go to https://surfshark.com/undecided or use code UNDECIDED at checkout to get 4 extra months of Surfshark VPN! When Spain's power grid failed on April 28th, 2025, it quickly became a very serious issue. Not only for the economic impacts, but life-or-death serious due to multiple, indirect deaths associated to the blackout. Emergency services, transportation, communication and other vital services were halted during this power outage. Not only did it blackout Spain, it also hit Portugal, parts of France and Morocco. But here's the thing … the UK went through something very similar back in 2019. The difference is: they've already figured out how to stop it from happening again. Spoiler: it involves 40 metric ton flywheels. Lots of them. We've covered flywheels before. But there's a wild new use case involving technology originally designed for space lasers. Yeah, you heard that right. Correction: Shortly after the video's release, Salt Lake City International Airport reached out to me stating that they are not using or are affiliated with Torus. Since then I've been in contact with both Torus and SLC Airport and it appears to have been a communications issue. Watch Geothermal vs Air Source Heat Pump: Which is Worth It?    • Did I Get the Wrong Heat Pump: Geothermal ...   Video script and citations: https://undecided.tech/how-40-ton-spi... Get my achieve energy security with solar guide: https://undecided.link/solar-guide Follow-up podcast: Video version -    / @stilltbd   Audio version - https://undecided.link/stilltbd-podcast Join the Undecided Discord server: https://undecided.link/discord 👋 Support Undecided on Patreon!   / mattferrell   ⚙️ Gear & Products I Like https://undecided.tech/shop/ Visit my Energysage Portal (US): Research solar panels, heat pumps, and more to get quotes for free! https://undecided.link/energysage For a curated solar buying experience (Canada) EnergyPal's free personalized quotes: https://undecided.link/energypal 👉 Follow Me Mastodon https://mastodon.social/@mattferrell X   / mattferrell   https://x.com/undecidedtech Instagram   / mattferrell     / undecidedtech   Website https://undecided.tech Some music provided by Epidemic Sound https://undecided.link/epidemic I may earn a small commission for my endorsement or recommendation to products or services linked above, but I wouldn't put them here if I didn't like them. Your purchase helps support the channel and the videos I produce. Thank you. Chapters 00:00 - Intro 02:59 - The UK's Solution 06:01 - Where Are They Now? 08:35 - Space Lasers to Port Cranes 10:33 - The Catch