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  2. Home fuel cell - Wikipedia

    en.wikipedia.org/wiki/Home_fuel_cell

    Because the home fuel cell generates electricity and heat that are both used on site, theoretical efficiency approaches 100%. This is in contrast to traditional or fuel cell non-domestic electricity production, which has both a transmission loss and useless heat, requiring extra energy consumption for domestic heating.

  3. Hydrogen fuel cell power plant - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_fuel_cell_power_plant

    A hydrogen fuel cell power plant is a type of fuel cell power plant (or station) which uses a hydrogen fuel cell to generate electricity for the power grid.They are larger in scale than backup generators such as the Bloom Energy Server and can be up to 60% efficient in converting hydrogen to electricity.

  4. Micro combined heat and power - Wikipedia

    en.wikipedia.org/wiki/Micro_combined_heat_and_power

    While net-metering is a very efficient mechanism for using excess energy generated by a micro-CHP system, it does have disadvantages: while the main generating source on the electrical grid is a large commercial generator, net-metering generators "spill" power to the smart grid in a haphazard and unpredictable fashion. However, the effect is ...

  5. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    The original liquid hydrogen turbopump is similar in size to an automobile engine (weighing approximately 352 kilograms (775 lb)) and produces 72,000 hp (54 MW) [2] for a power-to-weight ratio of 153 kW/kg (93 hp/lb).

  6. Power-to-gas - Wikipedia

    en.wikipedia.org/wiki/Power-to-gas

    Power-to-gas (often abbreviated P2G) is a technology that uses electric power to produce a gaseous fuel. [1]Most P2G systems use electrolysis to produce hydrogen.The hydrogen can be used directly, [2] or further steps (known as two-stage P2G systems) may convert the hydrogen into syngas, methane, [3] or LPG. [4]

  7. List of hydrogen internal combustion engine vehicles - Wikipedia

    en.wikipedia.org/wiki/List_of_hydrogen_internal...

    1991 – Mazda HR-X hydrogen Rotary; 1993 – Mazda HR-X2 hydrogen Rotary; 1993 – Mazda MX-5 Miata hydrogen Rotary; 1995 – Mazda Capella, first public street test of the hydrogen Rotary engine; 2003 – Mazda RX-8 Hydrogen RE hydrogen-gasoline hybrid Rotary; 2005 – Mazda Premacy Hydrogen RE Hybrid; 2007 – Mazda Hydrogen RE Plug in Hybrid

  8. Hydrogen internal combustion engine vehicle - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_internal...

    Emissions from burning hydrogen can be negligible but emissions from producing hydrogen are currently higher than direct combustion of the source. [37] Hydrogen has a wide flammability range (3–70% H 2 in air) in comparison with other fuels. [35] As a result, it can be combusted in an internal combustion engine over a wide range of fuel-air ...

  9. Electric generator - Wikipedia

    en.wikipedia.org/wiki/Electric_generator

    An engine-generator is the combination of an electrical generator and an engine (prime mover) mounted together to form a single piece of self-contained equipment. The engines used are usually piston engines, but gas turbines can also be used, and there are even hybrid diesel-gas units, called dual-fuel units.

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