Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?

To: gg cox who wrote (170529)	4/15/2021 8:07:46 PM
From: sense	Read Replies (1) \| Respond to of 217732

Do you generally agree,, it takes more energy units to manufacture hydrogen... than it gives back. Every form of energy we use takes more energy units to manufacture than it gives back... The only question is... at what differential cost... and who has to pay for the units used to manufacture ? Hydroelectric is enormously inefficient... as a total system. But if you only concentrate on the % concentrate... that nature provides free of charge... :<)... ??? The problem with hydrogen... thus far... is that it has not been linked to sufficient forms of piracy from other energy transfer mechanisms that it "appears" to be "free"... on a cost basis... not an energy budget basis. Horizontal drilling and fracking... keeps making oil cheaper... as it has its own innovation curve altering the relative cost of producing fracked oil over time... relative cost... compared to others costs... ? I studied fuel cells fairly intently for a few years... haven't been back to look at them again, but generally accept they're getting better... more efficient... But, what's been done in the parallel efforts trying to make hydrogen cheaper ? That's NOT about the same tech curve in reverse... but about using some other waste energy source as a "free" driver ? What's the loss in efficiency in SURPLUS solar or wind power that is used to generate storage as hydrogen... instead of storage in a grid battery... or just wasting the potential ? What's the energy density/portability/longevity values in different forms of storage... particularly as storage with more permanency ? Surplus solar in July... stuffed into a battery... probably not much use in late December ? Catalysis... in context of multi-factoral free energy sources (waste heat, waste electricity, waste noise, waste light, etc. ) paired in reducing costs... is under-explored... Catalysts need to be tuned, not to optimize efficiency at whatever cost... but to optimize exploitation of whatever has no cost...

To: gg cox who wrote (170529)	4/16/2021 11:25:33 AM
From: Haim R. Branisteanu	Read Replies (1) \| Respond to of 217732

gg cox – 1. first you know nothing about me. 2. to extract hydrogen by electrolysis is not chemistry. 3. There are several ways to break the covalent bond between hydrogen and oxygen and obviously you do not know them. 4.To date they achieved electrical efficiencies of over 93% in extracting hydrogen - you simple do not know that 5. The problem with hydrogen is not so much its extraction as its transport and interaction with other materials. 6. FYI oxygen mixed with hydrogen do not react without an external ignition up to 570C. 7. Oxidation of hydrogen can be almost instantaneous from a spark that is the trigger of ignition if its temperature is above 600C 8. At HUJ I worked with hydrogen and superconducting materials before your where even born. 9. take a book and learn before making remarks. To me it seems you need a lot of learning.

To: gg cox who wrote (170529)	4/17/2021 8:31:52 AM
From: Haim R. Branisteanu	Respond to of 217732

From Paul Martin Chemical process development expert. Antidote to marketing #hopium . Tireless advocate for a fossil fuel-free future. 34m Haim R. Branisteanu I'm not anti-hydrogen, nor even anti green or blue hydrogen. Not at all. I'm anti "hydrogen as a fuel", whether for heating or transport. And the reason is that it is neither efficient nor effective as a fuel or a decarbonization strategy. When even 50% of our ammonia is made from either green or blue hydrogen, THEN perhaps we can start talking about having some one day to WASTE as an inefficient vehicle or heating fuel! That the uses are being pushed AHEAD of production without GHG emissions should send people a clear signal that it isn't about decarbonization!