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+--- Thread: The Climate, Environment and Energy Thread (/thread-4986.html)
Re: The Climate, Environment and Energy Thread - LP - 03-05-2024
(03-05-2024, 02:20 AM)kruddler date Wrote:Its in our best interests to do everything we can do to use Hydrogen as much as possible, sooner or later, 'big money' will realise this,The tech, the costs, the argy bargy are all largely irrelevant issues, the biggest hydrogen economy issue is something called hydrogen embrittlement.
Re: The Climate, Environment and Energy Thread - kruddler - 03-05-2024
(03-05-2024, 03:34 AM)LP link Wrote:The tech, the costs, the argy bargy are all largely irrelevant issues, the biggest hydrogen economy issue is something called hydrogen embrittlement.
You'd think that is somewhat solved since there are working cars out and about.
Time will tell.
Re: The Climate, Environment and Energy Thread - ElwoodBlues1 - 03-05-2024
https://sustainability.crugroup.com/article/energy-from-green-hydrogen-will-be-expensive-even-in-2050
Re: The Climate, Environment and Energy Thread - LP - 03-05-2024
(03-05-2024, 04:36 AM)ElwoodBlues1 date Wrote:https://sustainability.crugroup.com/article/energy-from-green-hydrogen-will-be-expensive-even-in-2050Is there is some irony in CRU arguing that Green Hydrogen is bad because SolarPV and Wind are intermittent sources for electrolysing water? Especially given CRU owns a division which is a specialist SolarPV technology consultancy, so they are hardly impartial on this issue.
I'm not going to tell anyone the future of green energy is going to be cheaper, it won't. In fact prices are already rising, this is despite all the unending claims of clean green and cheap. We have more low cost subsidised renewable energy than ever before, supposedly smashing the $/kwh rate, but tell that to many peoples recent power bills! The bill is the reality, forget all the claims.
btw., When people talk about hydrogen in steel making and chemical processing, it's not just about energy, it's required as a reductant / reagent in many industrial processes. At the moment steel mills and some chemical plants produce their own hydrogen by reformation, and green or blue hydrogen would see the carbon emissions slashed by 20% to 40% even without any other complimentary strategies.
No matter how some try to encourage a hydrogen ban, we are never going to stop making steel, fertilisers or medicines.
Finally, as an aside, a couple of years back a lobby group tried to ban nitrogen use in industry. Apparently nitrogen is the new carbon dioxide. I was involved in projects 3D printing metals using nitrogen gas. The gas we use is a waste by-product of companies making oxygen, argon and even some CO2 for drinks (beer / soft drinks). Nitrogen as a by-product is so cheap we can buy it at cubic meter pricing cheaper than air. All the nitrogen we use comes out of the air, and that is where 98% of it eventually heads back, some gets interstitially absorbed by the metals. Yet we were accused of adding to greenhouse gases, these protesters are fruit loops!
Re: The Climate, Environment and Energy Thread - LP - 05-16-2024
Has the reality of Green Energy is been exposed by various federal budget announcements?
For years I've been hearing claims, Green is no cheaper, cut oil subsidies, kick out the dirty polluters, let Green compete fair and square, then the budget cuts, and it's Green Energy can't survive without help!
How can that be, it seems both positions cannot be true, is it really cheaper, if so why then why is it now being claimed that diminished subsidies will signal a Green Energy death?
Isn't the ultimate target reduce CO2 emissions by any means, not just through monopolised funding?
Re: The Climate, Environment and Energy Thread - LP - 06-19-2024
How all this energy argy bargy plays out will be very interesting.
To me that there are two primary competing interests, adoption of renewables and rapid carbon reduction, and the two have priorities that are not necessarily aligned although they will claim otherwise to rally public support.
The economics presented for the competing carbon reduction technologies are largely fictitious, and the chance of achieving the stated goals are also largely fictitious.
- The cost of renewables, both the environmental and economic impact is vastly understated, the economics of gigawatt nuclear aren't straight forward either, in reality neither can survive without subsidy. Kids can't afford homes, soon they won't be able to recharge their phone or turn on the lights, even if they are LED.
- But should cost be the real issue, if the climate situation is as critical as claimed how can cost even be a genuine consideration? We are happily suspending billion$ for more roads, but next to nothing on energy security to deliver the recharging to the EVs we are supposed to be buying. It seems the cart is put before the horse!
- The ability to deliver renewables at the scale needed in the timeframe required to redress the critical climate situation is impossible, the claims to the contrary are fantasy and the capabilities to grow rapidly enough are massively overstated. We can't even get commitment to build local manufacturing capability, and without it there will only be fractional growth in the supply chain when two orders of magnitude is needed.
- The risk of nuclear is vastly overstated as is the risk of nuclear waste, it's stigma not reality but politics is weak.
- Coal's rate of carbon reduction / evolution is vastly overstated, the short term threat to coal from renewables is vastly overstated, coals biggest short term / immediate threat is nuclear. Big energy coal is not aligned with big energy nuclear, they are in competition.
All the competing systems are depending on stealth and misdirection to become the favoured option, we would be wise to remain cynical on all counts. Weak politics only makes the situation worse, empty threats and lack of commitment are bountiful.
Re: The Climate, Environment and Energy Thread - cookie2 - 06-19-2024
We can't even build a rail link to the airport or enough homes for people to live in. Don't hold your breath re. energy. The blah blah blah will go on and on. Maybe we could harness the hot air being emitted - there'll be a goodly supply of that.
Re: The Climate, Environment and Energy Thread - Gointocarlton - 06-19-2024
(06-19-2024, 06:21 AM)cookie2 link Wrote:We can't even build a rail link to the airport or enough homes for people to live in. Don't hold your breath re. energy. The blah blah blah will go on and on. Maybe we could harness the hot air being emitted - there'll be a goodly supply of that.Its symptomatic of modern day politics, focussing on the "big issues" like freeing Palestine instead of looking after our own back yard. Its even worse at local government level, I'd fark the whole local gov sector off in the blink of an eye if I were in charge.
Re: The Climate, Environment and Energy Thread - DJC - 06-19-2024
(06-19-2024, 06:47 AM)Gointocarlton link Wrote:Its symptomatic of modern day politics, focussing on the "big issues" like freeing Palestine instead of looking after our own back yard. Its even worse at local government level, I'd fark the whole local gov sector off in the blink of an eye if I were in charge.
But could you rely on the State or Commonwealth Governments to collect your rubbish each week?
I don’t mind the three tiers of government but their areas of responsibility need to be redefined so that they are clear, there’s no overlap and no opportunity for buck passing or blame shifting.
Re: The Climate, Environment and Energy Thread - ElwoodBlues1 - 06-19-2024
(06-19-2024, 06:21 AM)cookie2 link Wrote:We can't even build a rail link to the airport or enough homes for people to live in. Don't hold your breath re. energy. The blah blah blah will go on and on. Maybe we could harness the hot air being emitted - there'll be a goodly supply of that.And thanks to Treasury’s miscalculations for migration being way out based on its lack of experience of forecasting a post-Covid world, it looks like the implications of that mistake, lingering high inflation, high rents, a housing shortage and higher for longer interest rates will be an ongoing problem.