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  2. Energy efficiency in transport - Wikipedia

    en.wikipedia.org/wiki/Energy_efficiency_in_transport

    The energy efficiency in transport is the useful travelled distance, of passengers, goods or any type of load; divided by the total energy put into the transport propulsion means. The energy input might be rendered in several different types depending on the type of propulsion, and normally such energy is presented in liquid fuels , electrical ...

  3. Sustainable transport - Wikipedia

    en.wikipedia.org/wiki/Sustainable_transport

    Sustainable transport is transportation sustainable in terms of their social and environmental impacts. Components for evaluating sustainability include the particular vehicles used for road, water or air transport; the source of energy ; and the infrastructure used to accommodate the transport ( roads , railways , airways , waterways , canals ...

  4. Sustainable energy - Wikipedia

    en.wikipedia.org/wiki/Sustainable_energy

    Various projections of future energy use identify solar PV as one of the main sources of energy generation in a sustainable mix. [64] [65] Most components of solar panels can be easily recycled, but this is not always done in the absence of regulation. [66] Panels typically contain heavy metals, so they pose environmental risks if put in ...

  5. Low-carbon economy - Wikipedia

    en.wikipedia.org/wiki/Low-carbon_economy

    Examples for methods to transition towards a low-carbon economy: Concentrated solar power with molten salt heat storage in Spain; wind energy in South Africa; electrified public transport in Singapore; and renewable energy sources, especially solar photovoltaic and wind, are providing an increasing share of electricity production.

  6. Alternative fuel - Wikipedia

    en.wikipedia.org/wiki/Alternative_fuel

    Methanol and ethanol fuel are primary sources of energy; they are convenient fuels for storing and transporting energy. These alcohols can be used in internal combustion engines as alternative fuels. Butane has another advantage: it is the only alcohol-based motor fuel that can be transported readily by existing petroleum-product pipeline ...

  7. Green vehicle - Wikipedia

    en.wikipedia.org/wiki/Green_vehicle

    Road transport is the third largest source of greenhouse gases emitted in the UK, and accounts for about 27% of total emissions, [28] and 33% in the United States. [29] Of the total greenhouse gas emissions from transport, over 85% are due to CO 2 emissions from road vehicles. The transport sector is the fastest growing source of greenhouse ...

  8. Carbon-neutral fuel - Wikipedia

    en.wikipedia.org/wiki/Carbon-neutral_fuel

    The fuel, often referred to as electrofuel, stores the energy that was used in the production of the hydrogen. [11] Hydrogen fuel is typically prepared by the electrolysis of water in a power to gas process. To minimize emissions, the electricity is produced using a low-emission energy source such as wind, solar, or nuclear power. [12]

  9. Renewable fuels - Wikipedia

    en.wikipedia.org/wiki/Renewable_fuels

    Renewable fuels are fuels produced from renewable resources. Examples include: biofuels (e.g. Vegetable oil used as fuel, ethanol, methanol from clean energy and carbon dioxide [1] or biomass, and biodiesel), Hydrogen fuel (when produced with renewable processes), and fully synthetic fuel (also known as electrofuel) produced from ambient carbon dioxide and water.

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