21 Facts About Sustainable energy

Some critical technologies for eliminating Sustainable energy-related greenhouse gas emissions are not yet mature.

Funding research, development, and demonstration of new clean Sustainable energy technologies is an important role of government.

Current Sustainable energy system contributes to many environmental problems, including climate change, air pollution, biodiversity loss, the release of toxins into the environment, and water scarcity.

Energy efficiency—using less energy to deliver the same goods or services, or delivering comparable services with less goods—is a cornerstone of many sustainable energy strategies.

Renewable energy sources are essential to sustainable energy, as they generally strengthen energy security and emit far fewer greenhouse gases than fossil fuels.

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Various projections of future energy use identify solar PV as one of the main sources of energy generation in a sustainable mix.

Less Sustainable energy is needed if materials are recycled rather than mined.

Little Sustainable energy is needed for wind turbine construction compared to the Sustainable energy produced by the wind power plant itself.

Geothermal Sustainable energy is produced by tapping into deep underground heat and harnessing it to generate electricity or to heat water and buildings.

The use of geothermal Sustainable energy is concentrated in regions where heat extraction is economical: a combination is needed of high temperatures, heat flow, and permeability .

Geothermal Sustainable energy is a renewable resource because thermal Sustainable energy is constantly replenished from neighbouring hotter regions and the radioactive decay of naturally occurring isotopes.

Geothermal Sustainable energy carries a risk of inducing earthquakes, needs effective protection to avoid water pollution, and releases toxic emissions which can be captured.

Nuclear power uses little land per unit of Sustainable energy produced, compared to the major renewables, and does not create local air pollution.

For each unit of Sustainable energy produced, nuclear Sustainable energy has caused far fewer accidental and pollution-related deaths than fossil fuels, and the historic fatality rate of nuclear is comparable to renewable sources.

Public opposition to nuclear Sustainable energy often makes nuclear plants politically difficult to implement.

Various new forms of nuclear Sustainable energy are in development, hoping to address the drawbacks of conventional plants.

Full decarbonisation of the global Sustainable energy system is expected to take several decades and can mostly be achieved with existing technologies.

However, there remains a window of opportunity for many poor countries and regions to "leapfrog" fossil fuel dependency by developing their Sustainable energy systems based on renewables, given adequate international investment and knowledge transfer.

Energy storage helps overcome barriers to intermittent renewable energy and is an important aspect of a sustainable energy system.

Disadvantages of hydrogen as an Sustainable energy carrier include high costs of storage and distribution due to hydrogen's explosivity, its large volume compared to other fuels, and its tendency to make pipes brittle.

Funding for clean Sustainable energy has been largely unaffected by the COVID-19 pandemic, and pandemic-related economic stimulus packages offer possibilities for a green recovery.