Combined cycle hydrogen power plant

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Intermountain power plant is to be retrofitted for a mixed hydrogen/natural gas power plant in 2025. By 2045, 100% hydrogen[1]

A combined cycle hydrogen power plant is a

Natural gas power plants could be converted to hydrogen power plants with minimal renovation or do a combined mix of natural gas and hydrogen.[2][3]

Retrofitting natural gas power plants

Natural gas power plants could be designed with a transition to hydrogen in mind by having wider inlet pipes to the burner to increase flow rates because hydrogen is less dense than natural gas, and have the right material because hydrogen can cause hydrogen embrittlement.

Limitations

Current

fiber-reinforced polymer
pipelines coule also be used.

Nitrous oxide

When hydrogen is burned as a fuel no

NO₂ down into just nitrogen and water. The exhaust from a burning hydrogen reaction is water vapor and could be used as a diluent
to lower the high burning temp that creates the nitrous oxide.

Corrosion

Corrosion of the turbine from the water vapor from the hydrogen flame could reduce plant life or parts may need to be replaced more often.

Fuel handling

Hydrogen is the smallest and lightest element and can leak more easily at connection points and joints. Hydrogen diffuses quickly mitigating explosions. A hydrogen flame is also not as visible as a standard flame.

Transition to a renewable power grid

Renewable and conventional energy production in Germany over two weeks in 2022. In hours with low wind and PV production, hard coal and gas fill the gap. Nuclear and biomass show almost no flexibility. PV follows the increased consumption during daytime hours but varies seasonally.[4]

Wind and solar power are variable renewable energy sources that aren't as consistent as base load energy. Hydrogen could help renewables by capturing excess energy, with electrolysis, when they produce too much, and fill the gaps with that energy when they aren't producing as much.

See also

References

  1. ^ Puko, Timothy (1 May 2023). "This power plant offers a peek into the future". The Washington Post. Retrieved 5 October 2023.
  2. ^ Mulder, Sebastiaan (29 October 2021). "Ready for the Energy Transition: Hydrogen Considerations for Combined Cycle Power Plants". POWER Magazine. Retrieved 5 October 2023.
  3. ^ Leigh Collins (29 July 2021). "Why hydrogen-fired power plants 'will play a major role in the energy transition'". Recharge. Retrieved 5 October 2023.
  4. ^ "Flexible Power Plant Operation to Enable High Renewable Energy Penetration". IESR. 15 June 2022. Retrieved 21 November 2022.
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