Climate Change and Renewable Energy News and Discussion

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Anlsvrthng

Captain
Registered Member
Intrepid said:
Hydrogen is used to create e-fuels. And e-fuels can be handelt like diesel or kerosine.
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Hydrogen used to create fuels.

The long chain hydrocarbons, like bitumen ,tar and so on has to be hydrogened after cracking. That require cheap hydrogen production.


Problem is the wind/sun electricity is not fit for this purpose, the hydrogen is very expensive to store, and expensive as well to scale up the production plant for the intermitten wind/solar production.

Best candidate is the nuclear energy for this puprose.
 
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AndrewS

Brigadier
Registered Member
Crang said:
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It's due to start in 2025-2026 which is 5 years away

In other news, Sinopec is currently building new "solar to hydrogen plants"
The first should be ready in 18 months
It would be roughly equal to all hydrogen electrolyser capacity today
It'll be interesting to see how far they have brought down costs

BEIJING, Nov 30 (Reuters) - China's state-controlled Sinopec (600028.SS) has started the construction of a 3 billion yuan ($470 million) green hydrogen plant, with an annual production capacity of 20,000 tonnes, in Kuqa city in the country's northwestern region of Xinjiang.

The project aims to produce green hydrogen, which is derived from renewable sources, through a water electrolysis system powered by a 300-megawatts solar power station, the state-media Xinhua News reported on Tuesday.

Green hydrogen is produced by splitting water molecules with renewable electricity, and touted as a clean replacement for fossil fuels in industries that are otherwise hard to decarbonise.

Sinopec will also build hydrogen storage tanks, with a total storage capacity of about 210,000 standard cubic metres, and a hydrogen pipeline network that can transmit 28,000 standard cubic metres of hydrogen per hour, according to the report.

The project is expected to start production in June 2023, and the hydrogen it produces will be supplied to Sinopec's Tahe refinery to replace its current gas-to-hydrogen facilities.

Sinopec is also building a 20,000-tonne-per-annum green hydrogen plant in Ordos in Inner Mongolia.

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solarz

solarz

Brigadier
Green energy is not just going to be a replacement for fossil fuel, it will come with a systematic change in how our economy works.

For example, electric vehicles combined with autonomous driving, widespread remote employment, online shopping, and drone delivery will not only replace current fossil fuel personal vehicles, but also reduce the total amount of energy consumed. So in this particular sector, green energy would not need to be as cheap as fossil fuel.

There will be other changes in other areas. A large number of flights can be replaced by HSR. Innovations in geothermal energy extraction can allow individual homes to produce heat and electricity without the need for an energy grid, and thus obviate the cost of energy transportation.

For energy generation, nuclear is the future. Upcoming innovations such as molten salt reactors can make fissile reactors much safer. Then there are the advancements in fusion research.
 
ZeEa5KPul

ZeEa5KPul

Colonel
Registered Member
solarz said:
Green energy is not just going to be a replacement for fossil fuel, it will come with a systematic change in how our economy works.

For example, electric vehicles combined with autonomous driving, widespread remote employment, online shopping, and drone delivery will not only replace current fossil fuel personal vehicles, but also reduce the total amount of energy consumed. So in this particular sector, green energy would not need to be as cheap as fossil fuel.

There will be other changes in other areas. A large number of flights can be replaced by HSR. Innovations in geothermal energy extraction can allow individual homes to produce heat and electricity without the need for an energy grid, and thus obviate the cost of energy transportation.

For energy generation, nuclear is the future. Upcoming innovations such as molten salt reactors can make fissile reactors much safer. Then there are the advancements in fusion research.
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There are also going to be enormous strategic implications. China will gain a lot of freedom of action if it doesn't have to worry about hydrocarbon imports vulnerable to interdiction and disruption.
 
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subotai1

Junior Member
Registered Member
ZeEa5KPul said:
There are also going to be enormous strategic implications. China will gain a lot of freedom of action if it doesn't have to worry about hydrocarbon imports vulnerable to interdiction and disruption.
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That stands for the vast majority of the rest of the world too. The only losers are large-scale hydrocarbon countries and businesses or those too slow to adapt.
 
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sndef888

Captain
Registered Member
China moving to solar was one of the best moves ever made

Not only is it clean and starting to become cost effective, it is likely the most resilient form of energy in war

Missiles can easily take out a nuclear plant or a coal plant or a LNG ship or pipeline but its going to be very hard to take out thousands of individual solar panels, especially if they are decentralised

Only issue is that the grid is still vulnerable
 
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NiuBiDaRen

NiuBiDaRen

Brigadier
Registered Member
sndef888 said:
China moving to solar was one of the best moves ever made

Not only is it clean and starting to become cost effective, it is likely the most resilient form of energy in war

Missiles can easily take out a nuclear plant or a coal plant or a LNG ship or pipeline but its going to be very hard to take out thousands of individual solar panels, especially if they are decentralised

Only issue is that the grid is still vulnerable
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Generally the next big step would be to couple solar panels with 1. Storage systems or 2. Electrolysers or 3. A combination of the two.

Storage systems solve the intermittency issue and provides consistency to solar power.

Electrolysers turn solar energy into hydrogen which has great potential in the transportation industry.

This holds true for wind power and also hydro, and possibly geothermal. I sometimes wonder if geothermal will be a sleeper hit, especially with volcanoes still largely untapped. For example Indonesia is looking at tapping its many volcanoes for geothermal. But I'm not a geothermal expert and I don't know how much can be tapped.
 
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