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It is widely used now in the world, but you could consider it an alternative to coal
all of these
66% of the energy used by iceland is domestic geothermal energy.
Implies that is is able to act the same as the resource that is otherwise used. Such as bio-diesel instead of diesel, artificial wood over natural or solar energy over... Well that last one doesn't actually work as the resource is electricity and solar is just one of many ways of getting that resource. However Solar is a good alternative energy to most others.
Geothermal power is a natural resource and can be used anywhere where it occurs. Iceland wasn't chosen to host hydrothermal energy its just a natural source there. Iceland has invested money into research in these fields because it's much cheaper for them to use this energy instead of importing fossil fuel.
solar energy can be used in multiple ways. It has been used to cook with rather than an electric stove which gets the electricity from the non-renewable resource coal. It can also be used to heat homes rather than the method of natural gas.
a source that differs from the most commonly used resource. An example of an alternative fuel is corn oil or sugars, which would replace fossil fuels.
Mr bombastic gives the energy resource
5
no
It is used every day in Iceland.
solar energy there is always sun