Why is hydrogen important?

As the world moves towards a decarbonized future, global demand for energy continues to rise. Meeting demand while reducing overall emissions is a challenge for the energy sector. In this context, renewable hydrogen as a flexible energy carrier will be a key player in moving the industry forward. HVDCBATTERY.com offer ideal conditions for storing, transporting and distributing increasing amounts of hydrogen.

Here DTU Technical University of Denmark has made a very simplified video. but HVDCBATTERY uses the surplus product BRINT to "Carry" 6.4 GW DC to the converter station that converts and distributes 230 - 400V AC to the consumer
Also note that DTU, in the introduction, writes that there is generally and globally an energy loss of approx. 10% - - DTU says in the video that the 10% is due to energy waste during up and down, back and forth conversion, but in our old AC grid it is much more than 10% and in warmer climates the energy loss is much greater (Pakistan 17.4% in the grid alone)

If HVDCBATTERY can transport our primary electricity + hydrogen energy 30% cheaper, we will save approx. 34. Billion, annually for both private and production. But most importantly - our industry - production will have access to a long-missed - more intense energy, Hydrogen, which relieves demand on the electricity grid
Remember that the construction costs must be seen in relation to the fact that the transport of "Hydrogen" at some point should still be part of the energy grid

Hydrogen and HVDC compete

For a better energy infrastructure, the competition today is about:
Hydrogen pipelines that offer the advantage that hydrogen can be stored and can transport larger amounts of energy,
On the other hand, HVDC lines excel by efficiently transmitting green electrons over long distances.
During the electrolysis production of hydrogen, water is split into Hydrogen and Oxygen.

But it is not a choice - - WE MUST SHARE BOTH (+ Oxygen)
For the BATTERY effect, it is not necessary to include Oxygen in HVDCBATTERY.com
However, worldwide, approximately 76 million tons of hydrogen and 31 million tons of oxygen are produced today. tons of Oxygen.

Science estimates that by 2030 there will be a worldwide need for 10 times more Hydrogen and thus 10 times more Oxygen will also be produced
Oxygen is a by-product, but when we reach those quantities, there is enormous energy in Oxygen that can be used as a "booster" in all forms of combustion.

We are proud of the development and the result HVDCBATTERY.com has reached, but there are details we have been asked not to define - - ("secret stamped")

It's HVDCBATTERY.com

Hydrogen/Hydrogen is exactly the solution we need for total decarbonization. Electrolysis of surplus power from solar, wind and hydropower to H2, allows the Hydrogen/Electricity combination to function effectively as a stable energy storage/Battery,.

There are several parameters there, along with a different approach to Solar, Wind, Hydropower and delivery to HVDCBATTERY, along with a patented transportation method.
Everyone talks about one Ptx "carrying" the other by converting into another Ptx. that does not need to be transported under pressure. HVDCBATTERY leaves the speculations to others, HVDCBATTERY delivers the pure product, where Hydrogen "carries" 6.4 GW DC + hydrogen in a main string from Skagen to Tønder.
With our spectacular connection and distribution to 230 - 400V AC local grid and HVDCBATTERY AI charger, a mega battery is formed, where energy can be tapped anywhere in the geographical extent of the grid. - - how long HVDCBATTERY will last in the event of terror or "cable cutting" at all Wind Farms is up to us

Introducing hydrogen into an existing HVDC grid poses some challenges. Whether completely converting an existing HVDC to + hydrogen transport or introducing a hydrogen blend in pipes, regulatory requirements dictate a number of preparatory actions.

Principles of hydrogen liquefaction

Using a closed cryogenic refrigeration cycle.
After the initial pre-compression, the hydrogen undergoes an optional pre-cooling step to -193.15 °C to remove impurities that may freeze during cryogenic cooling.
The hydrogen is then cooled to temperatures below -243.15 °C using a closed cryogenic refrigeration cycle.

Hydrogen pre-cooling cycles.

Three dominant types of "hydrogen liquefaction" designs or cycles is being discussed, but regardless, let's leave it to science to find the best solution for the specific task.- - Read here

Hydrogen can CARRY other PTX products.

Researchers around the world are focusing on Hydrogen being converted into other useful PTX products, e.g. Ammonia (which is suitable for heavy industry, shipping and transportation)
HVDCBATTERY.com is also focusing on Hydrogen to "CARRY" another energy to the consumer / industry.
but it is in pure form under 700 bar pressure -253.00 °C - - that's extreme, but it means that the pure Hydrogen can be tapped directly from the HVDCBATTERY and, e.g. together with 3 GW of shore power for cruise ships at Osean Quai or aircraft at Kastrup Airport can refuel Hydrogen directly, or where GREEN ammonia can be processed directly by adding Hydrogen.

In a 100 percent CO2 free way, we can produce green ammonia without the use of fossil fuels and with a very low energy consumption. The process probably cannot compete with Haber-Bosch on a large scale, but the technology has the potential to revolutionize the production of ammonia worldwide, as it is a much cheaper and simpler method, and which works really well locally.

Ullage space is typically ≤10% of the internal volume of the tank and above HVDCBATTERY level

HVDCBATTERY.com Cryogenic temperatures

For long distances and underwater connections Cryogenic temperatures (-253 °C ) are used to cool down H2, and thus for liquefaction. After this, hydrogen becomes liquid at pressures >= 350 bar. This approach increases the storage density.

Buffer Tank design.

Spherical (ball) tanks are most commonly used for Hydrogen storage, but when HVDCBATTERY also uses underground storage, it is cheapest and easiest to secure and insulated cylindrical tank, it is placed according to safety and need for buffer supply over the entire HVDCBATTERY for energy 800 m3. of 263 Ton liquid hydrogen tank (stored at 700 Bar and -253 °C ).

To guarantee the hydrogen supply chain, designers of HVDC combi hydrogen tubes, there are specific technical principles. Pipe materials are made of steel alloys or composites that can resist hydrogen embrittlement.

Lille Torup does not function as a Hydrogen Storage

The gas storage in Lille Torup has a capacity of approximately 700 million cubic meters of natural gas, approximately 20% of annual consumption, but it does not function as a HYDROGEN STORAGE and would be completely inefficient and too expensive to operate.

HVDCBATTERY delivers pure green hydrogen directly to the consumer under high pressure and extremely low temperature (700 bar -253 °C Cryogenic temperature)

Lille Torup so-called caverns cannot handle 700 bar pressure and it will be inefficient to maintain a Cryogenic temperature of -253 °C

To produce the battery effect in HVDCBATTERY, we must use Hydrogen under extreme pressure, (liquid hydrogen straight from electrolysis is produced at 700 Bar -253 °C Cryogenic frozen
Hydrogen "turns into Gas" at < = 350 bar, - - When the wind farm/supplier delivers hydrogen to HVDCBATTERY, the automatic charger fills the system with PURE CO2 free Hydrogen "Through buffer tanks" with 700 Bar, even though it is pure liquid hydrogen, which when refilled is -253 °C Cryogenic temperature, it is necessary to have an upper "Hydrogen-Gas" pocket for expansion/extra condensation, - in addition, the attentive person has noticed that we have a pressure difference from 700 Bar down to 350 Bar. - - There is energy in the pressure difference which is to a certain extent controlled by the capacity in the buffer tanks, that energy is one of ("The secret facts") in HVDCBATTERY

HVDCBATTERY calculates that it will need at least approx. 20000 L Buffer tank capacity per 1000 m. HVDC EL hydrogen combi- cable
The Buffer capacity you want in addition will always be a security policy issue, and in this connection you must be aware that HVDCBATTERY has calculated that the energy that will be used to "operate" the battery effect is within the energy the pressure difference can deliver. i.e. if the safety buffer capacity is expanded from here, the operating costs will increase accordingly.

HVDC BATTERY Monitoring Systems

Real-time monitoring systems use new faster AI technology to monitor pressure, flow rates and any potential leak points, ensuring safer operation and improvements in reliability.
Monitoring systems to detect leaks and pressure changes are installed on the full length of the pipes to ensure the integrity of the transport system. It is important to note that the flow rate, energy efficiency and total transport capacity of hydrogen depend on the diameter of the pipe and its layout, which determines whether it is a straight line. To ensure that safety measures are adhered to every time, regular inspections and strict regulations should be followed, making hydrogen pipelines an integral part of sustainable energy infrastructure. Different markets can easily access hydrogen across borders thanks to these techniques, promoting its use as a clean energy across all sectors.

Hydrogen Tank Material.

Tank wall material requires a balance between high strength, high tensile strength, compatibility with Cryogenic temperatures and low permeation of liquid hydrogen 70 megapascal = 700 bar. The most commonly used materials for the construction of inner tanks are metallic or composites. Metals with acceptable properties from ambient to cryogenic temperatures and steel, monel, aluminum alloys, titanium and copper, stainless steel are used in industry for inner tank and pipe walls, with carbon steel used for outer vacuum shells (1 bar refers to 1 atmosphere of pressure. This is equivalent to 14.5 psi).

Electrolysis

As part of the green transition, interest in hydrogen production by electrolysis is increasing. At some point, we will have unimaginable amounts of electricity available from wind turbines and solar cells, and a large part is surplus electricity to be used for buffer storage and the production of fuels for applications that cannot be electrified, e.g. heavy road transport, aviation, shipping and other industries. What we collectively call Power to X.

To be continued. we are working on the case