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  2. Hydrogen economy - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_economy

    The following table shows a range of estimates of the levelized costs of gray, blue, and green hydrogen, expressed in terms of US$ per kg of H 2 (where data provided in other currencies or units, the average exchange rate to US dollars in the given year are used, and 1 kg of H 2 is assumed to have a calorific value of 33.3kWh).

  3. Hydrogen storage - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_storage

    Compressed hydrogen is a storage form whereby hydrogen gas is kept under pressures to increase the storage density. Compressed hydrogen in hydrogen tanks at 350 bar (5,000 psi) and 700 bar (10,000 psi) are used for hydrogen tank systems in vehicles, based on type IV carbon-composite technology.

  4. Hydrogen production - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_production

    The US DOE target price for hydrogen in 2020 is $2.30/kg, requiring an electricity cost of $0.037/kWh, which is achievable given recent PPA tenders for wind and solar in many regions. [74] The report by IRENA.ORG is an extensive factual report of present-day industrial hydrogen production consuming about 53 to 70 kWh per kg could go down to ...

  5. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. ... and the cost of extraction of the element, at zero. ... Hydrogen: 0.00008988 ...

  6. Hydrogen vehicle - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_vehicle

    The challenges facing the use of hydrogen in vehicles include its storage on board the vehicle. As of September 2023, hydrogen cost $36 per kilogram at public fueling stations in California, 14 times as much per mile for a Mirai as compared with a Tesla Model 3. [131]

  7. Energy density - Wikipedia

    en.wikipedia.org/wiki/Energy_density

    For energy storage, the energy density relates the stored energy to the volume of the storage equipment, e.g. the fuel tank. The higher the energy density of the fuel, the more energy may be stored or transported for the same amount of volume. The energy of a fuel per unit mass is called its specific energy.

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