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18-03-2023, 10:48 AM
#2381
Thanks for the link bp
Those projects to fuel Europes ambitions are likely to be out of the league for government finances and without looking deeper into them I am sceptical as to how successful or green they will be.
At this time most hydrogen is produced from natural gas so big co2 emissions .
Greens and Labour should ban dirty coal imports now and support natural gas production instead of chasing gas producers away .
Their green policy is in reality dirty black
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18-03-2023, 11:11 AM
#2382
Originally Posted by fish
Greens and Labour should ban dirty coal imports now and support natural gas production instead of chasing gas producers away .
Their green policy is in reality dirty black
We agree on that. Suppose however that our industry missed through the ban 5 years ago a crucial time window ... too long to catch up before the gas window is going to close.
I think we should go the green hydrogen way. We do have cheap renewable energy (to produce the hydrogen) and we have plenty of space to store it safely away from large population centres. The capital will come, if we invite it. Look at Canadas recent MoU with the EU:
https://www.cbc.ca/news/canada/newfo...toric%20moment.
Why can't we do something similar as well - e.g. with Singapore?
----
"Prediction is very difficult, especially about the future" (Niels Bohr)
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18-03-2023, 03:25 PM
#2383
Member
Originally Posted by fish
I do feel hydrogen in the scale needed would be difficult to store and require expensive technology to produce large amounts electricity.
We have natural gas stored in abundance if the government would lift the ban-costing the taxpayer nothing .
Look how well Norway is doing with their hydro and gas
....and then in a decade or so when wind/gas/solar etc has expanded and Manapouri returned to the national grid, below is thrown into the mix:
https://spectrum.ieee.org/electric-vehicle-grid-storage
"Electric-vehicle batteries may help store renewable energy to help make it a practical reality for power grids, potentially meeting grid demands for energy storage by as early as 2030, a new study finds."
Still difficult to see Onslow as a sensible pursuit.
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19-03-2023, 11:56 AM
#2384
Originally Posted by dibble
....and then in a decade or so when wind/gas/solar etc has expanded and Manapouri returned to the national grid, below is thrown into the mix:
https://spectrum.ieee.org/electric-vehicle-grid-storage
"Electric-vehicle batteries may help store renewable energy to help make it a practical reality for power grids, potentially meeting grid demands for energy storage by as early as 2030, a new study finds."
Still difficult to see Onslow as a sensible pursuit.
Smaller scale pumped hydro in the north island seems much more sensible-I understand this is being considered as an option .
I do wonder if it could be financed part government and part private-maybe with genesis ?
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11-04-2023, 08:38 AM
#2385
Originally Posted by kiora
Or makes more sense to invest in biomass conversion???
"Genesis isn’t considering further imports of wood. Instead, it wanted to develop a local source of pellets or “biomass”, said interim chief executive Tracey Hickman.
“It’s worth some focus by government and business to see if a sustainable local supply chain can be developed. Compared to some other decarbonisation solutions, biomass conversion could be implemented much sooner to the benefit of the country,” she said in a statement.
With a reliable supply of pellets, Hickman said, Huntly could become a lower-carbon source of back-up electricity generation for another decade – or even longer."
https://www.stuff.co.nz/environment/...ng-short-trial
Or biogas ???
https://www.beca.com/getmedia/4294a6...-Potential.pdf
Here you go at last, large opportunity ?
https://www.stuff.co.nz/business/131...+11+April+2023
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11-04-2023, 10:06 AM
#2386
Member
Originally Posted by kiora
Interesting; a hint that others may follow too.
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11-04-2023, 10:38 AM
#2387
Junior Member
The big oil giants have been investing big in renewable natgas and the space has really been picking up steam.
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11-04-2023, 11:53 AM
#2388
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11-04-2023, 02:26 PM
#2389
http://nzx-prod-s7fsd7f98s.s3-websit...963/391433.pdf
The attached presentation by contact had a good summary of various aspects of the NZ Energy Market.
Quite interesting....even if one wasn't interested in the bonds.
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15-04-2023, 03:49 PM
#2390
Member
Yet another alternative.
Canberra megabattery to hold 250MW. Onslow expected to hold....1000-1200MW?? depending on which news source you read (Newsroom v Stuff).
https://www.abc.net.au/news/2023-04-...ergy/102217104
"Expected to be online in 2025, the battery energy storage system will cost between $300 million and $400 million".
Looks like construction hasnt started yet.
....so one can be built in about 2 years? Maybe 4-5 of them would roughly match Onslow?? No birds or lizards displaced and maybe total under $2bn in a 2-4 year timeframe plus you could put them in the North Is where needed.
Just charge them during summer with a solar field.
There must be a catch of course, be interested to hear what that is from those in the know. I didnt see Contact's presentation refer to any alternatives.....
(thanks RTM by the way)
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