Hacker News with Generative AI: Green Technology

Is Green hydrogen the "gas of the future"? (2023) (adamtooze.substack.com)
When hydrogen burns it leaves water. Though as a gas it is not dense, by weight hydrogen is three times energy-denser than kerosene. Hydrogen is also the most abundant element in the universe and H2 can be produced by electrolysis by applying an electric current to water. Electricity in turn can be generated from the wind and sun.
Energy, Climate Change, Green Technology, Hydrogen
14 points by simonebrunozzi 7 days ago | 12 comments
Boston Metal shows industrial reactor that uses electricity to make steel (technologyreview.com)
Green-steel startup Boston Metal just showed that it has all the ingredients needed to make steel without emitting gobs of greenhouse gases. The company successfully ran its largest reactor yet to make steel, producing over a ton of metal, MIT Technology Review can exclusively report.
Sustainability, Steel, Manufacturing, Green Technology
10 points by animal_spirits 17 days ago | 2 comments
Want to ride an e-bike? No batteries needed • France 24 English [video] (youtube.com)
E-bikes, France, Sustainability, Green Technology, Transportation
4 points by alamortsubite 18 days ago | 2 comments
Device uses wind to create ammonia out of air (ieee.org)
Lots of green energy experiments in the lab publish impressive results—but what’s more impressive is when those results come from an actual on-site pilot demonstration in the real world. That’s the case with new research that is able to generate ammonia out of thin air, without requiring an external power source.
Renewable Energy, Green Technology, Chemistry, Engineering
147 points by rbanffy 76 days ago | 116 comments
OpenERV (openerv.ca)
The TW4 decentralized Energy Recovery Ventilator transfers clean outdoor air inside and moves polluted air outdoors, while harvesting ~90% of the heat energy - so you get fresh air without the downsides of heating or cooling it.
Energy Efficiency, HVAC, Green Technology, Open Source
849 points by graboy 108 days ago | 262 comments
Plug Power Failure Part I: Critical DOE Loan at Risk Due to False Water Data (hntrbrk.com)
Plug Power Inc. (NASDAQ: $PLUG) understated the water usage of its hydrogen plants, reporting figures almost eight times lower than actual levels, according to a Hunterbrook Media review of groundwater withdrawal permits, permit applications, and purchase agreements.
Energy, Business, Investigations, Environment, Green Technology
8 points by impish9208 119 days ago | 2 comments
The Battery Revolution Is Finally Here (insideevs.com)
Electric vehicles are advancing at an incredible pace, but we’re very much still in the early days.
Electric Vehicles, Battery Technology, Green Technology
47 points by xbmcuser 156 days ago | 50 comments
My solar-powered and self-hosted website (dri.es)
I'm excited to share an experiment I've been working on: a solar-powered, self-hosted website running on a Raspberry Pi. The website at https://solar.dri.es is powered entirely by a solar panel and battery on our roof deck in Boston.
Green Technology, Web Development, Raspberry Pi, Solar Power
193 points by lightlyused 168 days ago | 61 comments
Low-carbon ammonia offers alternative for agriculture and hydrogen transport (techxplore.com)
A new way of making ammonia, by harnessing the unique power of liquid metal, could lead to significant cuts in carbon emissions caused by production of the widely-used chemical.
Green Technology, Chemistry, Sustainability, Agriculture, Hydrogen
11 points by PaulHoule 188 days ago | 2 comments
Green tech startup with no climate experience secured millions in gov contracts (propublica.org)
Green Technology, Government Contracts, Funding, Startups, Climate Change
16 points by danso 238 days ago | 5 comments
General Galactic emerges from stealth to make methane from carbon dioxide (techcrunch.com)
Climate Change, Green Technology, Startups, Carbon Capture
14 points by PaulHoule 338 days ago | 11 comments