Two simple ways to transform the energy system | Chen Gong | TEDxBerlinSalon

[@alanshaw5286]

What a breath of fresh air to hear Gerald echo what I have been saying to all those trying to hang on to the past rather than embracing the future. It is time to wake up before it is too late

[@RASDKB]

If I owe the fossil plant and still make all the money, me and my friends in politics will not allow you to do that until someone makles me an offer I cannot refuse.

[@ronmorrell9809]

Modern nuclear plants make great sense for the high temperature manufacturing and grid stabilization. TerraPower is building a molten sodium cooled power plant at the site of a decommissioned coal plant. It uses existing grid connections. It includes a storage tank of molten sodium coolant. The steam is generated by pumping water through this tank. This is very responsive to demand fluctuations (nuclear plants are difficult to modulate ...slowly). The tank can also directly supply heat for manufacturing, without the conversion to electricity.

[@cyberslim7955]

9:30 Ships will go electric, too! Google China electric container ship! Load up a few battery containers, and off they go! Way, way cheaper and the infrastructure is dirt cheap to build. So it's like battery swapping for container ships!

[@jjamespacbell]

Hydrogen for any form of transportation makes no sense. Before it becomes viable battery technology will overtake and become the primary source of energy. The only question will be what form will those batteries take.

[@michaels6331]

A friend of mine swears that hydrogen will be the next cleaner energy source, mainly because he went on a road trip five years ago in a Tesla and said it was ridiculous to sit around for 45 minutes to get enough charge to get where they were going. All the new tech coming out in batteries will not change his mind. A completely untried, no infrastructure, theoretical fuel, is better than his 5 year old experience with a electrified car.....

[@WentzCraft]

There might be a case for hydrogen with transport ships and maybe flight .

[@jjamespacbell]

@@michaels6331 My wife and I drove earlier this year from Anaheim California to Port Angelus Washington and back in a week. a trip of 2,500 miles in my Model Y. I never waited for charging, every 2 to 4 hours I plugged in when we needed to take care of human needs. Car was always waiting for us not the other way around. A trip not possible in a hydrogen car but even if you could the current cost for hydrogen is $36 per kg and a fill up takes 5 kg, cost > $1,440 my total supercharging cost was $283. Ask your friend how much his time is worth. Is it far more than $100 per hour, assuming there is no need for bathroom breaks?

[@thomasgade226]

Batteries are unbeatable for short range, but impossible for long range due to low energy density, even for future batteries. Hydrogen only has 2 uses: direct use in industry, and feedstock for costlier fuels like ammonia and e-kerosene

[@dougbamford]

It's really important. People are making bad decisions and getting locked into outdated technology because they are listening to misinformation from the gas and oil lobby. It is very sad.

[@peterjones6640]

Oil companies have a lot of money for political lobbying and suits their aims to maximise profits whilst costs fall on individuals and taxpayers

[@thomasgade226]

@@peterjones6640 exactly. The method is to Privatize the profits, while socializing the risks.

[@dougbamford]

Nicely explained.

[@br7485]

It seems that a sphere of 2.5 m in diameter filled with sand and covered with 0.5 m of mineral wool would be able to store 300 kWh (1000 oC) for a week, losing 25% in the end, and being able to return half of it back in form of electricity and a quarter in form of hot water. And costing 7.5k USD (20 USD/kWh netto). (For reference, a 2.2kW steam turbine costs 2.5k USD.) It’s interesting why no startup is able to produce a prototype of such a simple, but so much needed system. Having such a system the only thing remaining for energy transition is 5 times the nominal capacity of solar panels / wind turbines (for Germany climate). Even a diesel generator practically never will be needed.

[@anonimouse8918]

As an example, on shipping: 100 thousand tones @ 20-30 knots speed for 25 years without refueling, a tiny carbon footprint and the waste fuel for all of this transport that is a few cubic meters in volume(less I think?).The materials are readily available, vessels are doing this now and the technology is 50 years old. We could update and cost-reduce this technology and pretty much de-carbonise shipping. How can anyone serious talk about decarbonisation without mentioning this uniquely powerful technology. I'm not saying we should not talk about other technologies but don't leave out the most powerful one. If you hear an energy expert talking about decarbonisation across various sectors and Nuclear is not mentioned at all in their conversation then often this means that their whole view on the subject is built on an anti-nuclear axiom rather than logic.

[@klauswerner]

Es ist eine merkwürdige Energiewende in Deutschland - die Produktion von Energie wird immer günstiger, und die Verbraucherpreise steigen. Wo geht die Differenz hin?

[@klauswerner]

3cent per hour - plus redispatch costs. The important price is the total costs of the System. Not the costs at the source. If the energy production costs less and less - why have the people have to pay more and more? Please tell it to the people!

[@thomasgade226]

too many commercial breaks for a TEDtalk

[@klauswerner]

Sorry, solar energy ist not cheaper then the other alternatives, when we see the bypassed costs, as the redispatch costs. The difference is: people with solar at their houses save money, cause the redispatch costs would be paid from all other. So normal people see nothing from the cheaper energy Production costs. They have to pay more. And a energy transformation, where the most people see higher costs can‘t be successfull.

[@cyberslim7955]

H2 and the first word is "could"! 🤣🤣🤣 When will that Oil and Gas nonsense end?

[@Fomites]

Delicious.

[@adnankhan-vi2mo]

Time wasting video 😢

[@adnankhan-vi2mo]

6th November 2024❤

[@adnankhan-vi2mo]

I did 1st comment ❤

[@lesliecarter4295]

SMR and Hydrogen is the future…!

[@klauswerner]

Sorry, solar energy ist not cheaper then the other alternatives, when we see the bypassed costs, as the redispatch costs. The difference is: people with solar at their houses save money, cause the redispatch costs would be paid from all other. So normal people see nothing from the cheaper energy Production costs. They have to pay more. And a energy transformation, where the most people see higher costs can‘t be successfull.